amadeus: Update to REV10 (#2654)

* amadeus: Update to REV10

This implements all the changes made with REV10 on 13.0.0.

* Address Ack's comment

* Address gdkchan's comment

Ryujinx.Audio/Renderer/Common/EffectType.cs

@@ -61,5 +61,10 @@ namespace Ryujinx.Audio.Renderer.Common
         /// Effect applying a limiter (DRC).
         /// </summary>
         Limiter,
+
+        /// <summary>
+        /// Effect to capture mixes (via auxiliary buffers).
+        /// </summary>
+        CaptureBuffer
     }
 }

Ryujinx.Audio/Renderer/Common/PerformanceDetailType.cs

@@ -30,6 +30,7 @@ namespace Ryujinx.Audio.Renderer.Common
         Reverb,
         Reverb3d,
         PcmFloat,
-        Limiter
+        Limiter,
+        CaptureBuffer
     }
 }

Ryujinx.Audio/Renderer/Device/VirtualDevice.cs

@@ -27,12 +27,13 @@ namespace Ryujinx.Audio.Renderer.Device
         /// <summary>
         /// All the defined virtual devices.
         /// </summary>
-        public static readonly VirtualDevice[] Devices = new VirtualDevice[4]
+        public static readonly VirtualDevice[] Devices = new VirtualDevice[5]
         {
-            new VirtualDevice("AudioStereoJackOutput", 2),
-            new VirtualDevice("AudioBuiltInSpeakerOutput", 2),
-            new VirtualDevice("AudioTvOutput", 6),
-            new VirtualDevice("AudioUsbDeviceOutput", 2),
+            new VirtualDevice("AudioStereoJackOutput", 2, true),
+            new VirtualDevice("AudioBuiltInSpeakerOutput", 2, false),
+            new VirtualDevice("AudioTvOutput", 6, false),
+            new VirtualDevice("AudioUsbDeviceOutput", 2, true),
+            new VirtualDevice("AudioExternalOutput", 6, true),
         };
 
         /// <summary>
@@ -50,15 +51,22 @@ namespace Ryujinx.Audio.Renderer.Device
         /// </summary>
         public float MasterVolume { get; private set; }
 
+        /// <summary>
+        /// Define if the <see cref="VirtualDevice"/> is provided by an external interface.
+        /// </summary>
+        public bool IsExternalOutput { get; }
+
         /// <summary>
         /// Create a new <see cref="VirtualDevice"/> instance.
         /// </summary>
         /// <param name="name">The name of the <see cref="VirtualDevice"/>.</param>
         /// <param name="channelCount">The count of channels supported by the <see cref="VirtualDevice"/>.</param>
-        private VirtualDevice(string name, uint channelCount)
+        /// <param name="isExternalOutput">Indicate if the <see cref="VirtualDevice"/> is provided by an external interface.</param>
+        private VirtualDevice(string name, uint channelCount, bool isExternalOutput)
         {
             Name = name;
             ChannelCount = channelCount;
+            IsExternalOutput = isExternalOutput;
         }
 
         /// <summary>
@@ -80,5 +88,19 @@ namespace Ryujinx.Audio.Renderer.Device
         {
             return Name.Equals("AudioUsbDeviceOutput");
         }
+
+        /// <summary>
+        /// Get the output device name of the <see cref="VirtualDevice"/>.
+        /// </summary>
+        /// <returns>The output device name of the <see cref="VirtualDevice"/>.</returns>
+        public string GetOutputDeviceName()
+        {
+            if (IsExternalOutput)
+            {
+                return "AudioExternalOutput";
+            }
+
+            return Name;
+        }
     }
 }

Ryujinx.Audio/Renderer/Dsp/BiquadFilterHelper.cs

@@ -0,0 +1,100 @@
+//
+// Copyright (c) 2019-2021 Ryujinx
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+
+using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
+using System;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Audio.Renderer.Dsp
+{
+    public static class BiquadFilterHelper
+    {
+        private const int FixedPointPrecisionForParameter = 14;
+
+        /// <summary>
+        /// Apply a single biquad filter.
+        /// </summary>
+        /// <remarks>This is implemented with a direct form 2.</remarks>
+        /// <param name="parameter">The biquad filter parameter</param>
+        /// <param name="state">The biquad filter state</param>
+        /// <param name="outputBuffer">The output buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to write the result</param>
+        /// <param name="sampleCount">The count of samples to process</param>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void ProcessBiquadFilter(ref BiquadFilterParameter parameter, ref BiquadFilterState state, Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, uint sampleCount)
+        {
+            float a0 = FixedPointHelper.ToFloat(parameter.Numerator[0], FixedPointPrecisionForParameter);
+            float a1 = FixedPointHelper.ToFloat(parameter.Numerator[1], FixedPointPrecisionForParameter);
+            float a2 = FixedPointHelper.ToFloat(parameter.Numerator[2], FixedPointPrecisionForParameter);
+
+            float b1 = FixedPointHelper.ToFloat(parameter.Denominator[0], FixedPointPrecisionForParameter);
+            float b2 = FixedPointHelper.ToFloat(parameter.Denominator[1], FixedPointPrecisionForParameter);
+
+            for (int i = 0; i < sampleCount; i++)
+            {
+                float input = inputBuffer[i];
+                float output = input * a0 + state.State0;
+
+                state.State0 = input * a1 + output * b1 + state.State1;
+                state.State1 = input * a2 + output * b2;
+
+                outputBuffer[i] = output;
+            }
+        }
+
+        /// <summary>
+        /// Apply multiple biquad filter.
+        /// </summary>
+        /// <remarks>This is implemented with a direct form 1.</remarks>
+        /// <param name="parameters">The biquad filter parameter</param>
+        /// <param name="states">The biquad filter state</param>
+        /// <param name="outputBuffer">The output buffer to write the result</param>
+        /// <param name="inputBuffer">The input buffer to write the result</param>
+        /// <param name="sampleCount">The count of samples to process</param>
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void ProcessBiquadFilter(ReadOnlySpan<BiquadFilterParameter> parameters, Span<BiquadFilterState> states, Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, uint sampleCount)
+        {
+            for (int stageIndex = 0; stageIndex < parameters.Length; stageIndex++)
+            {
+                BiquadFilterParameter parameter = parameters[stageIndex];
+
+                ref BiquadFilterState state = ref states[stageIndex];
+
+                float a0 = FixedPointHelper.ToFloat(parameter.Numerator[0], FixedPointPrecisionForParameter);
+                float a1 = FixedPointHelper.ToFloat(parameter.Numerator[1], FixedPointPrecisionForParameter);
+                float a2 = FixedPointHelper.ToFloat(parameter.Numerator[2], FixedPointPrecisionForParameter);
+
+                float b1 = FixedPointHelper.ToFloat(parameter.Denominator[0], FixedPointPrecisionForParameter);
+                float b2 = FixedPointHelper.ToFloat(parameter.Denominator[1], FixedPointPrecisionForParameter);
+
+                for (int i = 0; i < sampleCount; i++)
+                {
+                    float input = inputBuffer[i];
+                    float output = input * a0 + state.State0 * a1 + state.State1 * a2 + state.State2 * b1 + state.State3 * b2;
+
+                    state.State1 = state.State0;
+                    state.State0 = input;
+                    state.State3 = state.State2;
+                    state.State2 = output;
+
+                    outputBuffer[i] = output;
+                }
+            }
+        }
+    }
+}

Ryujinx.Audio/Renderer/Dsp/Command/AuxiliaryBufferCommand.cs

@@ -156,7 +156,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
                 Span<int> outputBufferInt = MemoryMarshal.Cast<float, int>(outputBuffer);
 
                 // Convert input data to the target format for user (int)
-                DataSourceHelper.ToInt(inputBufferInt, inputBuffer, outputBuffer.Length);
+                DataSourceHelper.ToInt(inputBufferInt, inputBuffer, inputBuffer.Length);
 
                 // Send the input to the user
                 Write(context.MemoryManager, OutputBuffer, CountMax, inputBufferInt, context.SampleCount, WriteOffset, UpdateCount);
@@ -177,8 +177,8 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             }
             else
             {
-                context.MemoryManager.Fill(BufferInfo.SendBufferInfo, (ulong)Unsafe.SizeOf<AuxiliaryBufferInfo>(), 0);
-                context.MemoryManager.Fill(BufferInfo.ReturnBufferInfo, (ulong)Unsafe.SizeOf<AuxiliaryBufferInfo>(), 0);
+                AuxiliaryBufferInfo.Reset(context.MemoryManager, BufferInfo.SendBufferInfo);
+                AuxiliaryBufferInfo.Reset(context.MemoryManager, BufferInfo.ReturnBufferInfo);
 
                 if (InputBufferIndex != OutputBufferIndex)
                 {

Ryujinx.Audio/Renderer/Dsp/Command/BiquadFilterCommand.cs

@@ -32,15 +32,16 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
 
         public ulong EstimatedProcessingTime { get; set; }
 
-        public BiquadFilterParameter Parameter { get; }
         public Memory<BiquadFilterState> BiquadFilterState { get; }
         public int InputBufferIndex { get; }
         public int OutputBufferIndex { get; }
         public bool NeedInitialization { get; }
 
+        private BiquadFilterParameter _parameter;
+
         public BiquadFilterCommand(int baseIndex, ref BiquadFilterParameter filter, Memory<BiquadFilterState> biquadFilterStateMemory, int inputBufferOffset, int outputBufferOffset, bool needInitialization, int nodeId)
         {
-            Parameter = filter;
+            _parameter = filter;
             BiquadFilterState = biquadFilterStateMemory;
             InputBufferIndex = baseIndex + inputBufferOffset;
             OutputBufferIndex = baseIndex + outputBufferOffset;
@@ -50,30 +51,6 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             NodeId = nodeId;
         }
 
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private void ProcessBiquadFilter(ref BiquadFilterState state, Span<float> outputBuffer, ReadOnlySpan<float> inputBuffer, uint sampleCount)
-        {
-            const int fixedPointPrecisionForParameter = 14;
-
-            float a0 = FixedPointHelper.ToFloat(Parameter.Numerator[0], fixedPointPrecisionForParameter);
-            float a1 = FixedPointHelper.ToFloat(Parameter.Numerator[1], fixedPointPrecisionForParameter);
-            float a2 = FixedPointHelper.ToFloat(Parameter.Numerator[2], fixedPointPrecisionForParameter);
-
-            float b1 = FixedPointHelper.ToFloat(Parameter.Denominator[0], fixedPointPrecisionForParameter);
-            float b2 = FixedPointHelper.ToFloat(Parameter.Denominator[1], fixedPointPrecisionForParameter);
-
-            for (int i = 0; i < sampleCount; i++)
-            {
-                float input = inputBuffer[i];
-                float output = input * a0 + state.Z1;
-
-                state.Z1 = input * a1 + output * b1 + state.Z2;
-                state.Z2 = input * a2 + output * b2;
-
-                outputBuffer[i] = output;
-            }
-        }
-
         public void Process(CommandList context)
         {
             ref BiquadFilterState state = ref BiquadFilterState.Span[0];
@@ -86,7 +63,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
                 state = new BiquadFilterState();
             }
 
-            ProcessBiquadFilter(ref state, outputBuffer, inputBuffer, context.SampleCount);
+            BiquadFilterHelper.ProcessBiquadFilter(ref _parameter, ref state, outputBuffer, inputBuffer, context.SampleCount);
         }
     }
 }

Ryujinx.Audio/Renderer/Dsp/Command/CaptureBufferCommand.cs

@@ -0,0 +1,154 @@
+//
+// Copyright (c) 2019-2021 Ryujinx
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+
+using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
+using Ryujinx.Memory;
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using static Ryujinx.Audio.Renderer.Dsp.State.AuxiliaryBufferHeader;
+using CpuAddress = System.UInt64;
+
+namespace Ryujinx.Audio.Renderer.Dsp.Command
+{
+    public class CaptureBufferCommand : ICommand
+    {
+        public bool Enabled { get; set; }
+
+        public int NodeId { get; }
+
+        public CommandType CommandType => CommandType.CaptureBuffer;
+
+        public ulong EstimatedProcessingTime { get; set; }
+
+        public uint InputBufferIndex { get; }
+
+        public ulong CpuBufferInfoAddress { get; }
+        public ulong DspBufferInfoAddress { get; }
+
+        public CpuAddress OutputBuffer { get; }
+        public uint CountMax { get; }
+        public uint UpdateCount { get; }
+        public uint WriteOffset { get; }
+
+        public bool IsEffectEnabled { get; }
+
+        public CaptureBufferCommand(uint bufferOffset, byte inputBufferOffset, ulong sendBufferInfo, bool isEnabled,
+                                    uint countMax, CpuAddress outputBuffer, uint updateCount, uint writeOffset, int nodeId)
+        {
+            Enabled = true;
+            NodeId = nodeId;
+            InputBufferIndex = bufferOffset + inputBufferOffset;
+            CpuBufferInfoAddress = sendBufferInfo;
+            DspBufferInfoAddress = sendBufferInfo + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>();
+            OutputBuffer = outputBuffer;
+            CountMax = countMax;
+            UpdateCount = updateCount;
+            WriteOffset = writeOffset;
+            IsEffectEnabled = isEnabled;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private uint Write(IVirtualMemoryManager memoryManager, ulong outBufferAddress, uint countMax, ReadOnlySpan<int> buffer, uint count, uint writeOffset, uint updateCount)
+        {
+            if (countMax == 0 || outBufferAddress == 0)
+            {
+                return 0;
+            }
+
+            uint targetWriteOffset = writeOffset + AuxiliaryBufferInfo.GetWriteOffset(memoryManager, DspBufferInfoAddress);
+
+            if (targetWriteOffset > countMax)
+            {
+                return 0;
+            }
+
+            uint remaining = count;
+
+            uint inBufferOffset = 0;
+
+            while (remaining != 0)
+            {
+                uint countToWrite = Math.Min(countMax - targetWriteOffset, remaining);
+
+                memoryManager.Write(outBufferAddress + targetWriteOffset * sizeof(int), MemoryMarshal.Cast<int, byte>(buffer.Slice((int)inBufferOffset, (int)countToWrite)));
+
+                targetWriteOffset = (targetWriteOffset + countToWrite) % countMax;
+                remaining -= countToWrite;
+                inBufferOffset += countToWrite;
+            }
+
+            if (updateCount != 0)
+            {
+                uint dspTotalSampleCount = AuxiliaryBufferInfo.GetTotalSampleCount(memoryManager, DspBufferInfoAddress);
+                uint cpuTotalSampleCount = AuxiliaryBufferInfo.GetTotalSampleCount(memoryManager, CpuBufferInfoAddress);
+
+                uint totalSampleCountDiff = dspTotalSampleCount - cpuTotalSampleCount;
+
+                if (totalSampleCountDiff >= countMax)
+                {
+                    uint dspLostSampleCount = AuxiliaryBufferInfo.GetLostSampleCount(memoryManager, DspBufferInfoAddress);
+                    uint cpuLostSampleCount = AuxiliaryBufferInfo.GetLostSampleCount(memoryManager, CpuBufferInfoAddress);
+
+                    uint lostSampleCountDiff = dspLostSampleCount - cpuLostSampleCount;
+                    uint newLostSampleCount = lostSampleCountDiff + updateCount;
+
+                    if (lostSampleCountDiff > newLostSampleCount)
+                    {
+                        newLostSampleCount = cpuLostSampleCount - 1;
+                    }
+
+                    AuxiliaryBufferInfo.SetLostSampleCount(memoryManager, DspBufferInfoAddress, newLostSampleCount);
+                }
+
+                uint newWriteOffset = (AuxiliaryBufferInfo.GetWriteOffset(memoryManager, DspBufferInfoAddress) + updateCount) % countMax;
+
+                AuxiliaryBufferInfo.SetWriteOffset(memoryManager, DspBufferInfoAddress, newWriteOffset);
+
+                uint newTotalSampleCount = totalSampleCountDiff + newWriteOffset;
+
+                AuxiliaryBufferInfo.SetTotalSampleCount(memoryManager, DspBufferInfoAddress, newTotalSampleCount);
+            }
+
+            return count;
+        }
+
+        public void Process(CommandList context)
+        {
+            Span<float> inputBuffer = context.GetBuffer((int)InputBufferIndex);
+
+            if (IsEffectEnabled)
+            {
+                Span<int> inputBufferInt = MemoryMarshal.Cast<float, int>(inputBuffer);
+
+                // Convert input data to the target format for user (int)
+                DataSourceHelper.ToInt(inputBufferInt, inputBuffer, inputBuffer.Length);
+
+                // Send the input to the user
+                Write(context.MemoryManager, OutputBuffer, CountMax, inputBufferInt, context.SampleCount, WriteOffset, UpdateCount);
+
+                // Convert back to float
+                DataSourceHelper.ToFloat(inputBuffer, inputBufferInt, inputBuffer.Length);
+            }
+            else
+            {
+                AuxiliaryBufferInfo.Reset(context.MemoryManager, DspBufferInfoAddress);
+            }
+        }
+    }
+}

Ryujinx.Audio/Renderer/Dsp/Command/CommandType.cs

@@ -46,6 +46,8 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
         ClearMixBuffer,
         CopyMixBuffer,
         LimiterVersion1,
-        LimiterVersion2
+        LimiterVersion2,
+        GroupedBiquadFilter,
+        CaptureBuffer
     }
 }

Ryujinx.Audio/Renderer/Dsp/Command/GroupedBiquadFilterCommand.cs

@@ -0,0 +1,80 @@
+//
+// Copyright (c) 2019-2021 Ryujinx
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+
+using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
+using System;
+
+namespace Ryujinx.Audio.Renderer.Dsp.Command
+{
+    public class GroupedBiquadFilterCommand : ICommand
+    {
+        public bool Enabled { get; set; }
+
+        public int NodeId { get; }
+
+        public CommandType CommandType => CommandType.GroupedBiquadFilter;
+
+        public ulong EstimatedProcessingTime { get; set; }
+
+        private BiquadFilterParameter[] _parameters;
+        private Memory<BiquadFilterState> _biquadFilterStates;
+        private int _inputBufferIndex;
+        private int _outputBufferIndex;
+        private bool[] _isInitialized;
+
+        public GroupedBiquadFilterCommand(int baseIndex, ReadOnlySpan<BiquadFilterParameter> filters, Memory<BiquadFilterState> biquadFilterStateMemory, int inputBufferOffset, int outputBufferOffset, ReadOnlySpan<bool> isInitialized, int nodeId)
+        {
+            _parameters = filters.ToArray();
+            _biquadFilterStates = biquadFilterStateMemory;
+            _inputBufferIndex = baseIndex + inputBufferOffset;
+            _outputBufferIndex = baseIndex + outputBufferOffset;
+            _isInitialized = isInitialized.ToArray();
+
+            Enabled = true;
+            NodeId = nodeId;
+        }
+
+        public void Process(CommandList context)
+        {
+            Span<BiquadFilterState> states = _biquadFilterStates.Span;
+
+            ReadOnlySpan<float> inputBuffer = context.GetBuffer(_inputBufferIndex);
+            Span<float> outputBuffer = context.GetBuffer(_outputBufferIndex);
+
+            for (int i = 0; i < _parameters.Length; i++)
+            {
+                if (!_isInitialized[i])
+                {
+                    states[i] = new BiquadFilterState();
+                }
+            }
+
+            // NOTE: Nintendo also implements a hot path for double biquad filters, but no generic path when the command definition suggests it could be done.
+            // As such we currently only implement a generic path for simplicity.
+            // TODO: Implement double biquad filters fast path.
+            if (_parameters.Length == 1)
+            {
+                BiquadFilterHelper.ProcessBiquadFilter(ref _parameters[0], ref states[0], outputBuffer, inputBuffer, context.SampleCount);
+            }
+            else
+            {
+                BiquadFilterHelper.ProcessBiquadFilter(_parameters, states, outputBuffer, inputBuffer, context.SampleCount);
+            }
+        }
+    }
+}

Ryujinx.Audio/Renderer/Dsp/State/AuxiliaryBufferHeader.cs

@@ -20,18 +20,22 @@ using System.Runtime.InteropServices;
 
 namespace Ryujinx.Audio.Renderer.Dsp.State
 {
-    [StructLayout(LayoutKind.Sequential, Pack = 1, Size = 0x40)]
+    [StructLayout(LayoutKind.Sequential, Pack = 1, Size = 0x80)]
     public struct AuxiliaryBufferHeader
     {
-        [StructLayout(LayoutKind.Sequential, Pack = 1, Size = 0xC)]
+        [StructLayout(LayoutKind.Sequential, Pack = 1, Size = 0x40)]
         public struct AuxiliaryBufferInfo
         {
             private const uint ReadOffsetPosition = 0x0;
             private const uint WriteOffsetPosition = 0x4;
+            private const uint LostSampleCountPosition = 0x8;
+            private const uint TotalSampleCountPosition = 0xC;
 
             public uint ReadOffset;
             public uint WriteOffset;
-            private uint _reserved;
+            public uint LostSampleCount;
+            public uint TotalSampleCount;
+            private unsafe fixed uint _unknown[12];
 
             public static uint GetReadOffset(IVirtualMemoryManager manager, ulong bufferAddress)
             {
@@ -43,6 +47,16 @@ namespace Ryujinx.Audio.Renderer.Dsp.State
                 return manager.Read<uint>(bufferAddress + WriteOffsetPosition);
             }
 
+            public static uint GetLostSampleCount(IVirtualMemoryManager manager, ulong bufferAddress)
+            {
+                return manager.Read<uint>(bufferAddress + LostSampleCountPosition);
+            }
+
+            public static uint GetTotalSampleCount(IVirtualMemoryManager manager, ulong bufferAddress)
+            {
+                return manager.Read<uint>(bufferAddress + TotalSampleCountPosition);
+            }
+
             public static void SetReadOffset(IVirtualMemoryManager manager, ulong bufferAddress, uint value)
             {
                 manager.Write(bufferAddress + ReadOffsetPosition, value);
@@ -52,9 +66,26 @@ namespace Ryujinx.Audio.Renderer.Dsp.State
             {
                 manager.Write(bufferAddress + WriteOffsetPosition, value);
             }
+
+            public static void SetLostSampleCount(IVirtualMemoryManager manager, ulong bufferAddress, uint value)
+            {
+                manager.Write(bufferAddress + LostSampleCountPosition, value);
+            }
+
+            public static void SetTotalSampleCount(IVirtualMemoryManager manager, ulong bufferAddress, uint value)
+            {
+                manager.Write(bufferAddress + TotalSampleCountPosition, value);
+            }
+
+            public static void Reset(IVirtualMemoryManager manager, ulong bufferAddress)
+            {
+                // NOTE: Lost sample count is never reset, since REV10.
+                manager.Write(bufferAddress + ReadOffsetPosition, 0UL);
+                manager.Write(bufferAddress + TotalSampleCountPosition, 0);
+            }
         }
 
-        public AuxiliaryBufferInfo BufferInfo;
-        public unsafe fixed uint Unknown[13];
+        public AuxiliaryBufferInfo CpuBufferInfo;
+        public AuxiliaryBufferInfo DspBufferInfo;
     }
 }

Ryujinx.Audio/Renderer/Dsp/State/BiquadFilterState.cs

@@ -22,7 +22,9 @@ namespace Ryujinx.Audio.Renderer.Dsp.State
     [StructLayout(LayoutKind.Sequential, Pack = 1, Size = 0x10)]
     public struct BiquadFilterState
     {
-        public float Z1;
-        public float Z2;
+        public float State0;
+        public float State1;
+        public float State2;
+        public float State3;
     }
 }

Ryujinx.Audio/Renderer/Parameter/Effect/AuxiliaryBufferParameter.cs

@@ -21,7 +21,7 @@ using System.Runtime.InteropServices;
 namespace Ryujinx.Audio.Renderer.Parameter.Effect
 {
     /// <summary>
-    /// <see cref="IEffectInParameter.SpecificData"/> for <see cref="Common.EffectType.AuxiliaryBuffer"/>.
+    /// <see cref="IEffectInParameter.SpecificData"/> for <see cref="Common.EffectType.AuxiliaryBuffer"/> and <see cref="Common.EffectType.CaptureBuffer"/>.
     /// </summary>
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
     public struct AuxiliaryBufferParameter
@@ -71,6 +71,7 @@ namespace Ryujinx.Audio.Renderer.Parameter.Effect
         /// <summary>
         /// The address of the start of the region containing two <see cref="Dsp.State.AuxiliaryBufferHeader"/> followed by the data that will be read by the <see cref="Dsp.AudioProcessor"/>.
         /// </summary>
+        /// <remarks>Unused with <see cref="Common.EffectType.CaptureBuffer"/>.</remarks>
         public ulong ReturnBufferInfoAddress;
 
         /// <summary>

Ryujinx.Audio/Renderer/Server/AudioRenderSystem.cs

@@ -360,6 +360,9 @@ namespace Ryujinx.Audio.Renderer.Server
                 case 3:
                     _commandProcessingTimeEstimator = new CommandProcessingTimeEstimatorVersion3(_sampleCount, _mixBufferCount);
                     break;
+                case 4:
+                    _commandProcessingTimeEstimator = new CommandProcessingTimeEstimatorVersion4(_sampleCount, _mixBufferCount);
+                    break;
                 default:
                     throw new NotImplementedException($"Unsupported processing time estimator version {_behaviourContext.GetCommandProcessingTimeEstimatorVersion()}.");
             }

Ryujinx.Audio/Renderer/Server/BehaviourContext.cs

@@ -97,10 +97,20 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <remarks>This was added in system update 12.0.0</remarks>
         public const int Revision9 = 9 << 24;
 
+        /// <summary>
+        /// REV10:
+        /// Added Bluetooth audio device support and removed the unused "GetAudioSystemMasterVolumeSetting" audio device API.
+        /// A new effect was added: Capture. This effect allows the client side to capture audio buffers of a mix.
+        /// A new command was added for double biquad filters on voices. This is implemented using a direct form 1 (instead of the usual direct form 2).
+        /// A new version of the command estimator was added to support the new commands.
+        /// </summary>
+        /// <remarks>This was added in system update 13.0.0</remarks>
+        public const int Revision10 = 10 << 24;
+
         /// <summary>
         /// Last revision supported by the implementation.
         /// </summary>
-        public const int LastRevision = Revision9;
+        public const int LastRevision = Revision10;
 
         /// <summary>
         /// Target revision magic supported by the implementation.
@@ -347,12 +357,26 @@ namespace Ryujinx.Audio.Renderer.Server
             return CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision9);
         }
 
+        /// <summary>
+        /// Check if the audio renderer should use an optimized Biquad Filter (Direct Form 1) in case of two biquad filters are defined on a voice.
+        /// </summary>
+        /// <returns>True if the audio renderer should use the optimization.</returns>
+        public bool IsBiquadFilterGroupedOptimizationSupported()
+        {
+            return CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision10);
+        }
+
         /// <summary>
         /// Get the version of the <see cref="ICommandProcessingTimeEstimator"/>.
         /// </summary>
         /// <returns>The version of the <see cref="ICommandProcessingTimeEstimator"/>.</returns>
         public int GetCommandProcessingTimeEstimatorVersion()
         {
+            if (CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision10))
+            {
+                return 4;
+            }
+
             if (CheckFeatureSupported(UserRevision, BaseRevisionMagic + Revision8))
             {
                 return 3;

Ryujinx.Audio/Renderer/Server/CommandBuffer.cs

@@ -24,6 +24,7 @@ using Ryujinx.Audio.Renderer.Server.Performance;
 using Ryujinx.Audio.Renderer.Server.Sink;
 using Ryujinx.Audio.Renderer.Server.Upsampler;
 using Ryujinx.Audio.Renderer.Server.Voice;
+using Ryujinx.Common.Memory;
 using System;
 using CpuAddress = System.UInt64;
 
@@ -220,6 +221,25 @@ namespace Ryujinx.Audio.Renderer.Server
             AddCommand(command);
         }
 
+        /// <summary>
+        /// Create a new <see cref="GroupedBiquadFilterCommand"/>.
+        /// </summary>
+        /// <param name="baseIndex">The base index of the input and output buffer.</param>
+        /// <param name="filters">The biquad filter parameters.</param>
+        /// <param name="biquadFilterStatesMemory">The biquad states.</param>
+        /// <param name="inputBufferOffset">The input buffer offset.</param>
+        /// <param name="outputBufferOffset">The output buffer offset.</param>
+        /// <param name="isInitialized">Set to true if the biquad filter state is initialized.</param>
+        /// <param name="nodeId">The node id associated to this command.</param>
+        public void GenerateGroupedBiquadFilter(int baseIndex, ReadOnlySpan<BiquadFilterParameter> filters, Memory<BiquadFilterState> biquadFilterStatesMemory, int inputBufferOffset, int outputBufferOffset, ReadOnlySpan<bool> isInitialized, int nodeId)
+        {
+            GroupedBiquadFilterCommand command = new GroupedBiquadFilterCommand(baseIndex, filters, biquadFilterStatesMemory, inputBufferOffset, outputBufferOffset, isInitialized, nodeId);
+
+            command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
+
+            AddCommand(command);
+        }
+
         /// <summary>
         /// Generate a new <see cref="MixRampGroupedCommand"/>.
         /// </summary>
@@ -440,6 +460,30 @@ namespace Ryujinx.Audio.Renderer.Server
             }
         }
 
+        /// <summary>
+        /// Generate a new <see cref="CaptureBufferCommand"/>.
+        /// </summary>
+        /// <param name="bufferOffset">The target buffer offset.</param>
+        /// <param name="inputBufferOffset">The input buffer offset.</param>
+        /// <param name="sendBufferInfo">The capture state.</param>
+        /// <param name="isEnabled">Set to true if the effect should be active.</param>
+        /// <param name="countMax">The limit of the circular buffer.</param>
+        /// <param name="outputBuffer">The guest address of the output buffer.</param>
+        /// <param name="updateCount">The count to add on the offset after write operations.</param>
+        /// <param name="writeOffset">The write offset.</param>
+        /// <param name="nodeId">The node id associated to this command.</param>
+        public void GenerateCaptureEffect(uint bufferOffset, byte inputBufferOffset, ulong sendBufferInfo, bool isEnabled, uint countMax, CpuAddress outputBuffer, uint updateCount, uint writeOffset, int nodeId)
+        {
+            if (sendBufferInfo != 0)
+            {
+                CaptureBufferCommand command = new CaptureBufferCommand(bufferOffset, inputBufferOffset, sendBufferInfo, isEnabled, countMax, outputBuffer, updateCount, writeOffset, nodeId);
+
+                command.EstimatedProcessingTime = _commandProcessingTimeEstimator.Estimate(command);
+
+                AddCommand(command);
+            }
+        }
+
         /// <summary>
         /// Generate a new <see cref="VolumeCommand"/>.
         /// </summary>

Ryujinx.Audio/Renderer/Server/CommandGenerator.cs

@@ -151,23 +151,35 @@ namespace Ryujinx.Audio.Renderer.Server
 
         private void GenerateBiquadFilterForVoice(ref VoiceState voiceState, Memory<VoiceUpdateState> state, int baseIndex, int bufferOffset, int nodeId)
         {
-            for (int i = 0; i < voiceState.BiquadFilters.Length; i++)
+            bool supportsOptimizedPath = _rendererContext.BehaviourContext.IsBiquadFilterGroupedOptimizationSupported();
+
+            if (supportsOptimizedPath && voiceState.BiquadFilters[0].Enable && voiceState.BiquadFilters[1].Enable)
             {
-                ref BiquadFilterParameter filter = ref voiceState.BiquadFilters[i];
+                Memory<byte> biquadStateRawMemory = SpanMemoryManager<byte>.Cast(state).Slice(VoiceUpdateState.BiquadStateOffset, VoiceUpdateState.BiquadStateSize * Constants.VoiceBiquadFilterCount);
+                Memory<BiquadFilterState> stateMemory = SpanMemoryManager<BiquadFilterState>.Cast(biquadStateRawMemory);
 
-                if (filter.Enable)
+                _commandBuffer.GenerateGroupedBiquadFilter(baseIndex, voiceState.BiquadFilters.ToSpan(), stateMemory, bufferOffset, bufferOffset, voiceState.BiquadFilterNeedInitialization, nodeId);
+            }
+            else
+            {
+                for (int i = 0; i < voiceState.BiquadFilters.Length; i++)
                 {
-                    Memory<byte> biquadStateRawMemory = SpanMemoryManager<byte>.Cast(state).Slice(VoiceUpdateState.BiquadStateOffset, VoiceUpdateState.BiquadStateSize * Constants.VoiceBiquadFilterCount);
+                    ref BiquadFilterParameter filter = ref voiceState.BiquadFilters[i];
 
-                    Memory<BiquadFilterState> stateMemory = SpanMemoryManager<BiquadFilterState>.Cast(biquadStateRawMemory);
+                    if (filter.Enable)
+                    {
+                        Memory<byte> biquadStateRawMemory = SpanMemoryManager<byte>.Cast(state).Slice(VoiceUpdateState.BiquadStateOffset, VoiceUpdateState.BiquadStateSize * Constants.VoiceBiquadFilterCount);
 
-                    _commandBuffer.GenerateBiquadFilter(baseIndex,
-                                                        ref filter,
-                                                        stateMemory.Slice(i, 1),
-                                                        bufferOffset,
-                                                        bufferOffset,
-                                                        !voiceState.BiquadFilterNeedInitialization[i],
-                                                        nodeId);
+                        Memory<BiquadFilterState> stateMemory = SpanMemoryManager<BiquadFilterState>.Cast(biquadStateRawMemory);
+
+                        _commandBuffer.GenerateBiquadFilter(baseIndex,
+                                                            ref filter,
+                                                            stateMemory.Slice(i, 1),
+                                                            bufferOffset,
+                                                            bufferOffset,
+                                                            !voiceState.BiquadFilterNeedInitialization[i],
+                                                            nodeId);
+                    }
                 }
             }
         }
@@ -443,7 +455,7 @@ namespace Ryujinx.Audio.Renderer.Server
 
                     uint updateCount;
 
-                    if ((channelIndex - 1) != 0)
+                    if (channelIndex != 1)
                     {
                         updateCount = 0;
                     }
@@ -556,6 +568,52 @@ namespace Ryujinx.Audio.Renderer.Server
             }
         }
 
+        private void GenerateCaptureEffect(uint bufferOffset, CaptureBufferEffect effect, int nodeId)
+        {
+            Debug.Assert(effect.Type == EffectType.CaptureBuffer);
+
+            if (effect.IsEnabled)
+            {
+                effect.GetWorkBuffer(0);
+            }
+
+            if (effect.State.SendBufferInfoBase != 0)
+            {
+                int i = 0;
+                uint writeOffset = 0;
+
+                for (uint channelIndex = effect.Parameter.ChannelCount; channelIndex != 0; channelIndex--)
+                {
+                    uint newUpdateCount = writeOffset + _commandBuffer.CommandList.SampleCount;
+
+                    uint updateCount;
+
+                    if (channelIndex != 1)
+                    {
+                        updateCount = 0;
+                    }
+                    else
+                    {
+                        updateCount = newUpdateCount;
+                    }
+
+                    _commandBuffer.GenerateCaptureEffect(bufferOffset,
+                                                         effect.Parameter.Input[i],
+                                                         effect.State.SendBufferInfo,
+                                                         effect.IsEnabled,
+                                                         effect.Parameter.BufferStorageSize,
+                                                         effect.State.SendBufferInfoBase,
+                                                         updateCount,
+                                                         writeOffset,
+                                                         nodeId);
+
+                    writeOffset = newUpdateCount;
+
+                    i++;
+                }
+            }
+        }
+
         private void GenerateEffect(ref MixState mix, int effectId, BaseEffect effect)
         {
             int nodeId = mix.NodeId;
@@ -597,6 +655,9 @@ namespace Ryujinx.Audio.Renderer.Server
                 case EffectType.Limiter:
                     GenerateLimiterEffect(mix.BufferOffset, (LimiterEffect)effect, nodeId, effectId);
                     break;
+                case EffectType.CaptureBuffer:
+                    GenerateCaptureEffect(mix.BufferOffset, (CaptureBufferEffect)effect, nodeId);
+                    break;
                 default:
                     throw new NotImplementedException($"Unsupported effect type {effect.Type}");
             }

Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion1.cs

@@ -186,5 +186,15 @@ namespace Ryujinx.Audio.Renderer.Server
         {
             return 0;
         }
+
+        public uint Estimate(GroupedBiquadFilterCommand command)
+        {
+            return 0;
+        }
+
+        public uint Estimate(CaptureBufferCommand command)
+        {
+            return 0;
+        }
     }
 }

Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion2.cs

@@ -550,5 +550,15 @@ namespace Ryujinx.Audio.Renderer.Server
         {
             return 0;
         }
+
+        public uint Estimate(GroupedBiquadFilterCommand command)
+        {
+            return 0;
+        }
+
+        public uint Estimate(CaptureBufferCommand command)
+        {
+            return 0;
+        }
     }
 }

Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion3.cs

@@ -16,7 +16,6 @@
 //
 
 using Ryujinx.Audio.Common;
-using Ryujinx.Audio.Renderer.Common;
 using Ryujinx.Audio.Renderer.Dsp.Command;
 using Ryujinx.Audio.Renderer.Parameter.Effect;
 using System;
@@ -30,8 +29,8 @@ namespace Ryujinx.Audio.Renderer.Server
     /// </summary>
     public class CommandProcessingTimeEstimatorVersion3 : ICommandProcessingTimeEstimator
     {
-        private uint _sampleCount;
-        private uint _bufferCount;
+        protected uint _sampleCount;
+        protected uint _bufferCount;
 
         public CommandProcessingTimeEstimatorVersion3(uint sampleCount, uint bufferCount)
         {
@@ -755,5 +754,15 @@ namespace Ryujinx.Audio.Renderer.Server
                     throw new NotImplementedException($"{command.Parameter.ChannelCount}");
             }
         }
+
+        public virtual uint Estimate(GroupedBiquadFilterCommand command)
+        {
+            return 0;
+        }
+
+        public virtual uint Estimate(CaptureBufferCommand command)
+        {
+            return 0;
+        }
     }
 }

Ryujinx.Audio/Renderer/Server/CommandProcessingTimeEstimatorVersion4.cs

@@ -0,0 +1,68 @@
+//
+// Copyright (c) 2019-2021 Ryujinx
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+
+using Ryujinx.Audio.Common;
+using Ryujinx.Audio.Renderer.Dsp.Command;
+using Ryujinx.Audio.Renderer.Parameter.Effect;
+using System;
+using System.Diagnostics;
+using static Ryujinx.Audio.Renderer.Parameter.VoiceInParameter;
+
+namespace Ryujinx.Audio.Renderer.Server
+{
+    /// <summary>
+    /// <see cref="ICommandProcessingTimeEstimator"/> version 4. (added with REV10)
+    /// </summary>
+    public class CommandProcessingTimeEstimatorVersion4 : CommandProcessingTimeEstimatorVersion3
+    {
+        public CommandProcessingTimeEstimatorVersion4(uint sampleCount, uint bufferCount) : base(sampleCount, bufferCount) { }
+
+        public override uint Estimate(GroupedBiquadFilterCommand command)
+        {
+            Debug.Assert(_sampleCount == 160 || _sampleCount == 240);
+
+            if (_sampleCount == 160)
+            {
+                return (uint)7424.5f;
+            }
+
+            return (uint)9730.4f;
+        }
+
+        public override uint Estimate(CaptureBufferCommand command)
+        {
+            Debug.Assert(_sampleCount == 160 || _sampleCount == 240);
+
+            if (_sampleCount == 160)
+            {
+                if (command.Enabled)
+                {
+                    return (uint)435.2f;
+                }
+
+                return (uint)4261.0f;
+            }
+
+            if (command.Enabled)
+            {
+                return (uint)5858.26f;
+            }
+
+            return (uint)435.2f;
+        }
+    }
+}

Ryujinx.Audio/Renderer/Server/Effect/AuxiliaryBufferEffect.cs

@@ -23,7 +23,7 @@ using Ryujinx.Audio.Renderer.Server.MemoryPool;
 using System.Diagnostics;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
-
+using static Ryujinx.Audio.Renderer.Dsp.State.AuxiliaryBufferHeader;
 using DspAddress = System.UInt64;
 
 namespace Ryujinx.Audio.Renderer.Server.Effect
@@ -73,7 +73,7 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
 
             if (BufferUnmapped || parameter.IsNew)
             {
-                ulong bufferSize = (ulong)Unsafe.SizeOf<int>() * Parameter.BufferStorageSize + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>() * 2;
+                ulong bufferSize = (ulong)Unsafe.SizeOf<int>() * Parameter.BufferStorageSize + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>();
 
                 bool sendBufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[0], Parameter.SendBufferInfoAddress, bufferSize);
                 bool returnBufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[1], Parameter.ReturnBufferInfoAddress, bufferSize);
@@ -85,11 +85,11 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
                     DspAddress sendDspAddress = WorkBuffers[0].GetReference(false);
                     DspAddress returnDspAddress = WorkBuffers[1].GetReference(false);
 
-                    State.SendBufferInfo = sendDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>();
-                    State.SendBufferInfoBase = sendDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>() * 2;
+                    State.SendBufferInfo = sendDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferInfo>();
+                    State.SendBufferInfoBase = sendDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>();
 
-                    State.ReturnBufferInfo = returnDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>();
-                    State.ReturnBufferInfoBase = returnDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>() * 2;
+                    State.ReturnBufferInfo = returnDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferInfo>();
+                    State.ReturnBufferInfoBase = returnDspAddress + (uint)Unsafe.SizeOf<AuxiliaryBufferHeader>();
                 }
             }
         }

Ryujinx.Audio/Renderer/Server/Effect/BaseEffect.cs

@@ -277,6 +277,8 @@ namespace Ryujinx.Audio.Renderer.Server.Effect
                     return PerformanceDetailType.Mix;
                 case EffectType.Limiter:
                     return PerformanceDetailType.Limiter;
+                case EffectType.CaptureBuffer:
+                    return PerformanceDetailType.CaptureBuffer;
                 default:
                     throw new NotImplementedException($"{Type}");
             }

Ryujinx.Audio/Renderer/Server/Effect/CaptureBufferEffect.cs

@@ -0,0 +1,99 @@
+//
+// Copyright (c) 2019-2021 Ryujinx
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+
+using Ryujinx.Audio.Renderer.Common;
+using Ryujinx.Audio.Renderer.Dsp.State;
+using Ryujinx.Audio.Renderer.Parameter;
+using Ryujinx.Audio.Renderer.Parameter.Effect;
+using Ryujinx.Audio.Renderer.Server.MemoryPool;
+using System.Diagnostics;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using DspAddress = System.UInt64;
+
+namespace Ryujinx.Audio.Renderer.Server.Effect
+{
+    /// <summary>
+    /// Server state for an capture buffer effect.
+    /// </summary>
+    public class CaptureBufferEffect : BaseEffect
+    {
+        /// <summary>
+        /// The capture buffer parameter.
+        /// </summary>
+        public AuxiliaryBufferParameter Parameter;
+
+        /// <summary>
+        /// Capture buffer state.
+        /// </summary>
+        public AuxiliaryBufferAddresses State;
+
+        public override EffectType TargetEffectType => EffectType.CaptureBuffer;
+
+        public override DspAddress GetWorkBuffer(int index)
+        {
+            return WorkBuffers[index].GetReference(true);
+        }
+
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion1 parameter, PoolMapper mapper)
+        {
+            Update(out updateErrorInfo, ref parameter, mapper);
+        }
+
+        public override void Update(out BehaviourParameter.ErrorInfo updateErrorInfo, ref EffectInParameterVersion2 parameter, PoolMapper mapper)
+        {
+            Update(out updateErrorInfo, ref parameter, mapper);
+        }
+
+        public void Update<T>(out BehaviourParameter.ErrorInfo updateErrorInfo, ref T parameter, PoolMapper mapper) where T : unmanaged, IEffectInParameter
+        {
+            Debug.Assert(IsTypeValid(ref parameter));
+
+            UpdateParameterBase(ref parameter);
+
+            Parameter = MemoryMarshal.Cast<byte, AuxiliaryBufferParameter>(parameter.SpecificData)[0];
+            IsEnabled = parameter.IsEnabled;
+
+            updateErrorInfo = new BehaviourParameter.ErrorInfo();
+
+            if (BufferUnmapped || parameter.IsNew)
+            {
+                ulong bufferSize = (ulong)Unsafe.SizeOf<int>() * Parameter.BufferStorageSize + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>();
+
+                bool sendBufferUnmapped = !mapper.TryAttachBuffer(out updateErrorInfo, ref WorkBuffers[0], Parameter.SendBufferInfoAddress, bufferSize);
+
+                BufferUnmapped = sendBufferUnmapped;
+
+                if (!BufferUnmapped)
+                {
+                    DspAddress sendDspAddress = WorkBuffers[0].GetReference(false);
+
+                    // NOTE: Nintendo directly interact with the CPU side structure in the processing of the DSP command.
+                    State.SendBufferInfo = sendDspAddress;
+                    State.SendBufferInfoBase = sendDspAddress + (ulong)Unsafe.SizeOf<AuxiliaryBufferHeader>();
+                    State.ReturnBufferInfo = 0;
+                    State.ReturnBufferInfoBase = 0;
+                }
+            }
+        }
+
+        public override void UpdateForCommandGeneration()
+        {
+            UpdateUsageStateForCommandGeneration();
+        }
+    }
+}

Ryujinx.Audio/Renderer/Server/ICommandProcessingTimeEstimator.cs

@@ -50,5 +50,7 @@ namespace Ryujinx.Audio.Renderer.Server
         uint Estimate(UpsampleCommand command);
         uint Estimate(LimiterCommandVersion1 command);
         uint Estimate(LimiterCommandVersion2 command);
+        uint Estimate(GroupedBiquadFilterCommand command);
+        uint Estimate(CaptureBufferCommand command);
     }
 }

Ryujinx.Audio/Renderer/Server/StateUpdater.cs

@@ -254,6 +254,9 @@ namespace Ryujinx.Audio.Renderer.Server
                 case EffectType.Limiter:
                     effect = new LimiterEffect();
                     break;
+                case EffectType.CaptureBuffer:
+                    effect = new CaptureBufferEffect();
+                    break;
                 default:
                     throw new NotImplementedException($"EffectType {parameter.Type} not implemented!");
             }

Ryujinx.HLE/HOS/Services/Audio/AudioRenderer/AudioDevice.cs

@@ -107,18 +107,9 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRenderer
             return ResultCode.Success;
         }
 
-        public ResultCode GetAudioSystemMasterVolumeSetting(string name, out float systemMasterVolume)
+        public string GetActiveAudioOutputDeviceName()
         {
-            if (TryGetDeviceByName(out VirtualDeviceSession result, name, true))
-            {
-                systemMasterVolume = result.Device.MasterVolume;
-            }
-            else
-            {
-                systemMasterVolume = 0.0f;
-            }
-
-            return ResultCode.Success;
+            return _registry.ActiveDevice.GetOutputDeviceName();
         }
 
         public string[] ListAudioDeviceName()
@@ -132,9 +123,32 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRenderer
 
             string[] result = new string[deviceCount];
 
-            for (int i = 0; i < deviceCount; i++)
+            int i = 0;
+
+            foreach (VirtualDeviceSession session in _sessions)
             {
+                if (!_isUsbDeviceSupported && _sessions[i].Device.IsUsbDevice())
+                {
+                    continue;
+                }
+
                 result[i] = _sessions[i].Device.Name;
+
+                i++;
+            }
+
+            return result;
+        }
+
+        public string[] ListAudioOutputDeviceName()
+        {
+            int deviceCount = _sessions.Length;
+
+            string[] result = new string[deviceCount];
+
+            for (int i = 0; i < deviceCount; i++)
+            {
+                result[i] = _sessions[i].Device.GetOutputDeviceName();
             }
 
             return result;

Ryujinx.HLE/HOS/Services/Audio/AudioRenderer/AudioDeviceServer.cs

@@ -38,8 +38,6 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRenderer
 
                 if ((position - basePosition) + (ulong)buffer.Length > size)
                 {
-                    Logger.Error?.Print(LogClass.ServiceAudio, $"Output buffer size {size} too small!");
-
                     break;
                 }
 
@@ -158,8 +156,6 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRenderer
 
                 if ((position - basePosition) + (ulong)buffer.Length > size)
                 {
-                    Logger.Error?.Print(LogClass.ServiceAudio, $"Output buffer size {size} too small!");
-
                     break;
                 }
 
@@ -264,23 +260,61 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRenderer
             return ResultCode.Success;
         }
 
-        [CommandHipc(13)]
-        // GetAudioSystemMasterVolumeSetting(buffer<bytes, 5> name) -> f32
-        public ResultCode GetAudioSystemMasterVolumeSetting(ServiceCtx context)
+        [CommandHipc(13)] // 13.0.0+
+        // GetActiveAudioOutputDeviceName() -> buffer<bytes, 6>
+        public ResultCode GetActiveAudioOutputDeviceName(ServiceCtx context)
         {
-            ulong position = context.Request.SendBuff[0].Position;
-            ulong size = context.Request.SendBuff[0].Size;
+            string name = _impl.GetActiveAudioOutputDeviceName();
 
-            string deviceName = MemoryHelper.ReadAsciiString(context.Memory, position, (long)size);
+            ulong position = context.Request.ReceiveBuff[0].Position;
+            ulong size = context.Request.ReceiveBuff[0].Size;
 
-            ResultCode result = _impl.GetAudioSystemMasterVolumeSetting(deviceName, out float systemMasterVolume);
+            byte[] deviceNameBuffer = Encoding.ASCII.GetBytes(name + "\0");
 
-            if (result == ResultCode.Success)
+            if ((ulong)deviceNameBuffer.Length <= size)
+            {
+                context.Memory.Write(position, deviceNameBuffer);
+            }
+            else
             {
-                context.ResponseData.Write(systemMasterVolume);
+                Logger.Error?.Print(LogClass.ServiceAudio, $"Output buffer size {size} too small!");
             }
 
-            return result;
+            return ResultCode.Success;
+        }
+
+        [CommandHipc(14)] // 13.0.0+
+        // ListAudioOutputDeviceName() -> (u32, buffer<bytes, 6>)
+        public ResultCode ListAudioOutputDeviceName(ServiceCtx context)
+        {
+            string[] deviceNames = _impl.ListAudioOutputDeviceName();
+
+            ulong position = context.Request.ReceiveBuff[0].Position;
+            ulong size = context.Request.ReceiveBuff[0].Size;
+
+            ulong basePosition = position;
+
+            int count = 0;
+
+            foreach (string name in deviceNames)
+            {
+                byte[] buffer = Encoding.ASCII.GetBytes(name);
+
+                if ((position - basePosition) + (ulong)buffer.Length > size)
+                {
+                    break;
+                }
+
+                context.Memory.Write(position, buffer);
+                MemoryHelper.FillWithZeros(context.Memory, position + (ulong)buffer.Length, AudioDeviceNameSize - buffer.Length);
+
+                position += AudioDeviceNameSize;
+                count++;
+            }
+
+            context.ResponseData.Write(count);
+
+            return ResultCode.Success;
         }
     }
 }

Ryujinx.HLE/HOS/Services/Audio/AudioRenderer/IAudioDevice.cs

@@ -12,6 +12,7 @@ namespace Ryujinx.HLE.HOS.Services.Audio.AudioRenderer
         uint GetActiveChannelCount();
         KEvent QueryAudioDeviceInputEvent();
         KEvent QueryAudioDeviceOutputEvent();
-        ResultCode GetAudioSystemMasterVolumeSetting(string name,  out float systemMasterVolume);
+        string GetActiveAudioOutputDeviceName();
+        string[] ListAudioOutputDeviceName();
     }
 }

Ryujinx.Tests/Audio/Renderer/Server/BehaviourContextTests.cs

@@ -51,6 +51,8 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsFalse(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsFalse(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsFalse(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.70f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(1, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
@@ -75,6 +77,8 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsFalse(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsFalse(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsFalse(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.70f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(1, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
@@ -99,6 +103,8 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsFalse(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsFalse(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsFalse(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.70f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(1, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
@@ -123,6 +129,8 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsFalse(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsFalse(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsFalse(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.75f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(1, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
@@ -147,6 +155,8 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsFalse(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsFalse(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsFalse(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.80f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(2, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
@@ -171,6 +181,8 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsTrue(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsFalse(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsFalse(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.80f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(2, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
@@ -195,6 +207,8 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsTrue(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsTrue(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsFalse(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.80f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(2, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
@@ -219,10 +233,64 @@ namespace Ryujinx.Tests.Audio.Renderer.Server
             Assert.IsTrue(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
             Assert.IsTrue(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
             Assert.IsTrue(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
 
             Assert.AreEqual(0.80f, behaviourContext.GetAudioRendererProcessingTimeLimit());
             Assert.AreEqual(3, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
             Assert.AreEqual(2, behaviourContext.GetPerformanceMetricsDataFormat());
         }
+
+        [Test]
+        public void TestRevision9()
+        {
+            BehaviourContext behaviourContext = new BehaviourContext();
+
+            behaviourContext.SetUserRevision(BehaviourContext.BaseRevisionMagic + BehaviourContext.Revision9);
+
+            Assert.IsTrue(behaviourContext.IsAdpcmLoopContextBugFixed());
+            Assert.IsTrue(behaviourContext.IsSplitterSupported());
+            Assert.IsTrue(behaviourContext.IsLongSizePreDelaySupported());
+            Assert.IsTrue(behaviourContext.IsAudioUsbDeviceOutputSupported());
+            Assert.IsTrue(behaviourContext.IsFlushVoiceWaveBuffersSupported());
+            Assert.IsTrue(behaviourContext.IsSplitterBugFixed());
+            Assert.IsTrue(behaviourContext.IsElapsedFrameCountSupported());
+            Assert.IsTrue(behaviourContext.IsDecodingBehaviourFlagSupported());
+            Assert.IsTrue(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
+            Assert.IsTrue(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
+            Assert.IsTrue(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsTrue(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsFalse(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
+
+            Assert.AreEqual(0.80f, behaviourContext.GetAudioRendererProcessingTimeLimit());
+            Assert.AreEqual(3, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
+            Assert.AreEqual(2, behaviourContext.GetPerformanceMetricsDataFormat());
+        }
+
+        [Test]
+        public void TestRevision10()
+        {
+            BehaviourContext behaviourContext = new BehaviourContext();
+
+            behaviourContext.SetUserRevision(BehaviourContext.BaseRevisionMagic + BehaviourContext.Revision10);
+
+            Assert.IsTrue(behaviourContext.IsAdpcmLoopContextBugFixed());
+            Assert.IsTrue(behaviourContext.IsSplitterSupported());
+            Assert.IsTrue(behaviourContext.IsLongSizePreDelaySupported());
+            Assert.IsTrue(behaviourContext.IsAudioUsbDeviceOutputSupported());
+            Assert.IsTrue(behaviourContext.IsFlushVoiceWaveBuffersSupported());
+            Assert.IsTrue(behaviourContext.IsSplitterBugFixed());
+            Assert.IsTrue(behaviourContext.IsElapsedFrameCountSupported());
+            Assert.IsTrue(behaviourContext.IsDecodingBehaviourFlagSupported());
+            Assert.IsTrue(behaviourContext.IsBiquadFilterEffectStateClearBugFixed());
+            Assert.IsTrue(behaviourContext.IsMixInParameterDirtyOnlyUpdateSupported());
+            Assert.IsTrue(behaviourContext.IsWaveBufferVersion2Supported());
+            Assert.IsTrue(behaviourContext.IsEffectInfoVersion2Supported());
+            Assert.IsTrue(behaviourContext.IsBiquadFilterGroupedOptimizationSupported());
+
+            Assert.AreEqual(0.80f, behaviourContext.GetAudioRendererProcessingTimeLimit());
+            Assert.AreEqual(4, behaviourContext.GetCommandProcessingTimeEstimatorVersion());
+            Assert.AreEqual(2, behaviourContext.GetPerformanceMetricsDataFormat());
+        }
     }
 }