Project Andio

src/audio_core/renderer/command/mix/clear_mix.cpp

@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <string>
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/clear_mix.h"
+
+namespace AudioCore::AudioRenderer {
+
+void ClearMixBufferCommand::Dump([[maybe_unused]] const ADSP::CommandListProcessor& processor,
+                                 std::string& string) {
+    string += fmt::format("ClearMixBufferCommand\n");
+}
+
+void ClearMixBufferCommand::Process(const ADSP::CommandListProcessor& processor) {
+    memset(processor.mix_buffers.data(), 0, processor.mix_buffers.size_bytes());
+}
+
+bool ClearMixBufferCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/clear_mix.h

@@ -0,0 +1,45 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for a clearing the mix buffers.
+ * Used at the start of each command list.
+ */
+struct ClearMixBufferCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+};
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/copy_mix.cpp

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/copy_mix.h"
+
+namespace AudioCore::AudioRenderer {
+
+void CopyMixBufferCommand::Dump([[maybe_unused]] const ADSP::CommandListProcessor& processor,
+                                std::string& string) {
+    string += fmt::format("CopyMixBufferCommand\n\tinput {:02X} output {:02X}\n", input_index,
+                          output_index);
+}
+
+void CopyMixBufferCommand::Process(const ADSP::CommandListProcessor& processor) {
+    auto output{processor.mix_buffers.subspan(output_index * processor.sample_count,
+                                              processor.sample_count)};
+    auto input{processor.mix_buffers.subspan(input_index * processor.sample_count,
+                                             processor.sample_count)};
+    std::memcpy(output.data(), input.data(), processor.sample_count * sizeof(s32));
+}
+
+bool CopyMixBufferCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/copy_mix.h

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for a copying a mix buffer from input to output.
+ */
+struct CopyMixBufferCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Input mix buffer index
+    s16 input_index;
+    /// Output mix buffer index
+    s16 output_index;
+};
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/depop_for_mix_buffers.cpp

@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/common/common.h"
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/depop_for_mix_buffers.h"
+
+namespace AudioCore::AudioRenderer {
+/**
+ * Apply depopping. Add the depopped sample to each incoming new sample, decaying it each time
+ * according to decay.
+ *
+ * @param output - Output buffer to be depopped.
+ * @param depop_sample - Depopped sample to apply to output samples.
+ * @param decay_ - Amount to decay the depopped sample for every output sample.
+ * @param sample_count - Samples to process.
+ * @return Final decayed depop sample.
+ */
+static s32 ApplyDepopMix(std::span<s32> output, const s32 depop_sample,
+                         Common::FixedPoint<49, 15>& decay_, const u32 sample_count) {
+    auto sample{std::abs(depop_sample)};
+    auto decay{decay_.to_raw()};
+
+    if (depop_sample <= 0) {
+        for (u32 i = 0; i < sample_count; i++) {
+            sample = static_cast<s32>((static_cast<s64>(sample) * decay) >> 15);
+            output[i] -= sample;
+        }
+        return -sample;
+    } else {
+        for (u32 i = 0; i < sample_count; i++) {
+            sample = static_cast<s32>((static_cast<s64>(sample) * decay) >> 15);
+            output[i] += sample;
+        }
+        return sample;
+    }
+}
+
+void DepopForMixBuffersCommand::Dump([[maybe_unused]] const ADSP::CommandListProcessor& processor,
+                                     std::string& string) {
+    string += fmt::format("DepopForMixBuffersCommand\n\tinput {:02X} count {} decay {}\n", input,
+                          count, decay.to_float());
+}
+
+void DepopForMixBuffersCommand::Process(const ADSP::CommandListProcessor& processor) {
+    auto end_index{std::min(processor.buffer_count, input + count)};
+    std::span<s32> depop_buff{reinterpret_cast<s32*>(depop_buffer), end_index};
+
+    for (u32 index = input; index < end_index; index++) {
+        const auto depop_sample{depop_buff[index]};
+        if (depop_sample != 0) {
+            auto input_buffer{processor.mix_buffers.subspan(index * processor.sample_count,
+                                                            processor.sample_count)};
+            depop_buff[index] =
+                ApplyDepopMix(input_buffer, depop_sample, decay, processor.sample_count);
+        }
+    }
+}
+
+bool DepopForMixBuffersCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/depop_for_mix_buffers.h

@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+#include "common/fixed_point.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for depopping a mix buffer.
+ * Adds a cumulation of previous samples to the current mix buffer with a decay.
+ */
+struct DepopForMixBuffersCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Starting input mix buffer index
+    u32 input;
+    /// Number of mix buffers to depop
+    u32 count;
+    /// Amount to decay the depop sample for each new sample
+    Common::FixedPoint<49, 15> decay;
+    /// Address of the depop buffer, holding the last sample for every mix buffer
+    CpuAddr depop_buffer;
+};
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/depop_prepare.cpp

@@ -0,0 +1,36 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/depop_prepare.h"
+#include "audio_core/renderer/voice/voice_state.h"
+#include "common/fixed_point.h"
+
+namespace AudioCore::AudioRenderer {
+
+void DepopPrepareCommand::Dump([[maybe_unused]] const ADSP::CommandListProcessor& processor,
+                               std::string& string) {
+    string += fmt::format("DepopPrepareCommand\n\tinputs: ");
+    for (u32 i = 0; i < buffer_count; i++) {
+        string += fmt::format("{:02X}, ", inputs[i]);
+    }
+    string += "\n";
+}
+
+void DepopPrepareCommand::Process(const ADSP::CommandListProcessor& processor) {
+    auto samples{reinterpret_cast<s32*>(previous_samples)};
+    auto buffer{std::span(reinterpret_cast<s32*>(depop_buffer), buffer_count)};
+
+    for (u32 i = 0; i < buffer_count; i++) {
+        if (samples[i]) {
+            buffer[inputs[i]] += samples[i];
+            samples[i] = 0;
+        }
+    }
+}
+
+bool DepopPrepareCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/depop_prepare.h

@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for preparing depop.
+ * Adds the previusly output last samples to the depop buffer.
+ */
+struct DepopPrepareCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Depop buffer offset for each mix buffer
+    std::array<s16, MaxMixBuffers> inputs;
+    /// Pointer to the previous mix buffer samples
+    CpuAddr previous_samples;
+    /// Number of mix buffers to use
+    u32 buffer_count;
+    /// Pointer to the current depop values
+    CpuAddr depop_buffer;
+};
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/mix.cpp

@@ -0,0 +1,70 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <algorithm>
+#include <limits>
+#include <span>
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/mix.h"
+#include "common/fixed_point.h"
+
+namespace AudioCore::AudioRenderer {
+/**
+ * Mix input mix buffer into output mix buffer, with volume applied to the input.
+ *
+ * @tparam Q           - Number of bits for fixed point operations.
+ * @param output       - Output mix buffer.
+ * @param input        - Input mix buffer.
+ * @param volume       - Volume applied to the input.
+ * @param sample_count - Number of samples to process.
+ */
+template <size_t Q>
+static void ApplyMix(std::span<s32> output, std::span<const s32> input, const f32 volume_,
+                     const u32 sample_count) {
+    const Common::FixedPoint<64 - Q, Q> volume{volume_};
+    for (u32 i = 0; i < sample_count; i++) {
+        output[i] = (output[i] + input[i] * volume).to_int();
+    }
+}
+
+void MixCommand::Dump([[maybe_unused]] const ADSP::CommandListProcessor& processor,
+                      std::string& string) {
+    string += fmt::format("MixCommand");
+    string += fmt::format("\n\tinput {:02X}", input_index);
+    string += fmt::format("\n\toutput {:02X}", output_index);
+    string += fmt::format("\n\tvolume {:.8f}", volume);
+    string += "\n";
+}
+
+void MixCommand::Process(const ADSP::CommandListProcessor& processor) {
+    auto output{processor.mix_buffers.subspan(output_index * processor.sample_count,
+                                              processor.sample_count)};
+    auto input{processor.mix_buffers.subspan(input_index * processor.sample_count,
+                                             processor.sample_count)};
+
+    // If volume is 0, nothing will be added to the output, so just skip.
+    if (volume == 0.0f) {
+        return;
+    }
+
+    switch (precision) {
+    case 15:
+        ApplyMix<15>(output, input, volume, processor.sample_count);
+        break;
+
+    case 23:
+        ApplyMix<23>(output, input, volume, processor.sample_count);
+        break;
+
+    default:
+        LOG_ERROR(Service_Audio, "Invalid precision {}", precision);
+        break;
+    }
+}
+
+bool MixCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/mix.h

@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for mixing an input mix buffer to an output mix buffer, with a volume
+ * applied to the input.
+ */
+struct MixCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Fixed point precision
+    u8 precision;
+    /// Input mix buffer index
+    s16 input_index;
+    /// Output mix buffer index
+    s16 output_index;
+    /// Mix volume applied to the input
+    f32 volume;
+};
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/mix_ramp.cpp

@@ -0,0 +1,94 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/mix_ramp.h"
+#include "common/fixed_point.h"
+#include "common/logging/log.h"
+
+namespace AudioCore::AudioRenderer {
+/**
+ * Mix input mix buffer into output mix buffer, with volume applied to the input.
+ *
+ * @tparam Q           - Number of bits for fixed point operations.
+ * @param output       - Output mix buffer.
+ * @param input        - Input mix buffer.
+ * @param volume       - Volume applied to the input.
+ * @param ramp         - Ramp applied to volume every sample.
+ * @param sample_count - Number of samples to process.
+ * @return The final gained input sample, used for depopping.
+ */
+template <size_t Q>
+s32 ApplyMixRamp(std::span<s32> output, std::span<const s32> input, const f32 volume_,
+                 const f32 ramp_, const u32 sample_count) {
+    Common::FixedPoint<64 - Q, Q> volume{volume_};
+    Common::FixedPoint<64 - Q, Q> sample{0};
+
+    if (ramp_ == 0.0f) {
+        for (u32 i = 0; i < sample_count; i++) {
+            sample = input[i] * volume;
+            output[i] = (output[i] + sample).to_int();
+        }
+    } else {
+        Common::FixedPoint<64 - Q, Q> ramp{ramp_};
+        for (u32 i = 0; i < sample_count; i++) {
+            sample = input[i] * volume;
+            output[i] = (output[i] + sample).to_int();
+            volume += ramp;
+        }
+    }
+    return sample.to_int();
+}
+
+template s32 ApplyMixRamp<15>(std::span<s32>, std::span<const s32>, const f32, const f32,
+                              const u32);
+template s32 ApplyMixRamp<23>(std::span<s32>, std::span<const s32>, const f32, const f32,
+                              const u32);
+
+void MixRampCommand::Dump(const ADSP::CommandListProcessor& processor, std::string& string) {
+    const auto ramp{(volume - prev_volume) / static_cast<f32>(processor.sample_count)};
+    string += fmt::format("MixRampCommand");
+    string += fmt::format("\n\tinput {:02X}", input_index);
+    string += fmt::format("\n\toutput {:02X}", output_index);
+    string += fmt::format("\n\tvolume {:.8f}", volume);
+    string += fmt::format("\n\tprev_volume {:.8f}", prev_volume);
+    string += fmt::format("\n\tramp {:.8f}", ramp);
+    string += "\n";
+}
+
+void MixRampCommand::Process(const ADSP::CommandListProcessor& processor) {
+    auto output{processor.mix_buffers.subspan(output_index * processor.sample_count,
+                                              processor.sample_count)};
+    auto input{processor.mix_buffers.subspan(input_index * processor.sample_count,
+                                             processor.sample_count)};
+    const auto ramp{(volume - prev_volume) / static_cast<f32>(processor.sample_count)};
+    auto prev_sample_ptr{reinterpret_cast<s32*>(previous_sample)};
+
+    // If previous volume and ramp are both 0, nothing will be added to the output, so just skip.
+    if (prev_volume == 0.0f && ramp == 0.0f) {
+        *prev_sample_ptr = 0;
+        return;
+    }
+
+    switch (precision) {
+    case 15:
+        *prev_sample_ptr =
+            ApplyMixRamp<15>(output, input, prev_volume, ramp, processor.sample_count);
+        break;
+
+    case 23:
+        *prev_sample_ptr =
+            ApplyMixRamp<23>(output, input, prev_volume, ramp, processor.sample_count);
+        break;
+
+    default:
+        LOG_ERROR(Service_Audio, "Invalid precision {}", precision);
+        break;
+    }
+}
+
+bool MixRampCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/mix_ramp.h

@@ -0,0 +1,73 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <span>
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for mixing an input mix buffer to an output mix buffer, with a volume
+ * applied to the input, and volume ramping to smooth out the transition.
+ */
+struct MixRampCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Fixed point precision
+    u8 precision;
+    /// Input mix buffer index
+    s16 input_index;
+    /// Output mix buffer index
+    s16 output_index;
+    /// Previous mix volume
+    f32 prev_volume;
+    /// Current mix volume
+    f32 volume;
+    /// Pointer to the previous sample buffer, used for depopping
+    CpuAddr previous_sample;
+};
+
+/**
+ * Mix input mix buffer into output mix buffer, with volume applied to the input.
+ * @tparam Q           - Number of bits for fixed point operations.
+ * @param output       - Output mix buffer.
+ * @param input        - Input mix buffer.
+ * @param volume       - Volume applied to the input.
+ * @param ramp         - Ramp applied to volume every sample.
+ * @param sample_count - Number of samples to process.
+ * @return The final gained input sample, used for depopping.
+ */
+template <size_t Q>
+s32 ApplyMixRamp(std::span<s32> output, std::span<const s32> input, const f32 volume_,
+                 const f32 ramp_, const u32 sample_count);
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/mix_ramp_grouped.cpp

@@ -0,0 +1,65 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/mix_ramp.h"
+#include "audio_core/renderer/command/mix/mix_ramp_grouped.h"
+
+namespace AudioCore::AudioRenderer {
+
+void MixRampGroupedCommand::Dump(const ADSP::CommandListProcessor& processor, std::string& string) {
+    string += "MixRampGroupedCommand";
+    for (u32 i = 0; i < buffer_count; i++) {
+        string += fmt::format("\n\t{}", i);
+        const auto ramp{(volumes[i] - prev_volumes[i]) / static_cast<f32>(processor.sample_count)};
+        string += fmt::format("\n\t\tinput {:02X}", inputs[i]);
+        string += fmt::format("\n\t\toutput {:02X}", outputs[i]);
+        string += fmt::format("\n\t\tvolume {:.8f}", volumes[i]);
+        string += fmt::format("\n\t\tprev_volume {:.8f}", prev_volumes[i]);
+        string += fmt::format("\n\t\tramp {:.8f}", ramp);
+        string += "\n";
+    }
+}
+
+void MixRampGroupedCommand::Process(const ADSP::CommandListProcessor& processor) {
+    std::span<s32> prev_samples = {reinterpret_cast<s32*>(previous_samples), MaxMixBuffers};
+
+    for (u32 i = 0; i < buffer_count; i++) {
+        auto last_sample{0};
+        if (prev_volumes[i] != 0.0f || volumes[i] != 0.0f) {
+            const auto output{processor.mix_buffers.subspan(outputs[i] * processor.sample_count,
+                                                            processor.sample_count)};
+            const auto input{processor.mix_buffers.subspan(inputs[i] * processor.sample_count,
+                                                           processor.sample_count)};
+            const auto ramp{(volumes[i] - prev_volumes[i]) /
+                            static_cast<f32>(processor.sample_count)};
+
+            if (prev_volumes[i] == 0.0f && ramp == 0.0f) {
+                prev_samples[i] = 0;
+                continue;
+            }
+
+            switch (precision) {
+            case 15:
+                last_sample =
+                    ApplyMixRamp<15>(output, input, prev_volumes[i], ramp, processor.sample_count);
+                break;
+            case 23:
+                last_sample =
+                    ApplyMixRamp<23>(output, input, prev_volumes[i], ramp, processor.sample_count);
+                break;
+            default:
+                LOG_ERROR(Service_Audio, "Invalid precision {}", precision);
+                break;
+            }
+        }
+
+        prev_samples[i] = last_sample;
+    }
+}
+
+bool MixRampGroupedCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/mix_ramp_grouped.h

@@ -0,0 +1,61 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for mixing multiple input mix buffers to multiple output mix buffers, with
+ * a volume applied to the input, and volume ramping to smooth out the transition.
+ */
+struct MixRampGroupedCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Fixed point precision
+    u8 precision;
+    /// Number of mix buffers to mix
+    u32 buffer_count;
+    /// Input mix buffer indexes for each mix buffer
+    std::array<s16, MaxMixBuffers> inputs;
+    /// Output mix buffer indexes for each mix buffer
+    std::array<s16, MaxMixBuffers> outputs;
+    /// Previous mix vloumes for each mix buffer
+    std::array<f32, MaxMixBuffers> prev_volumes;
+    /// Current mix vloumes for each mix buffer
+    std::array<f32, MaxMixBuffers> volumes;
+    /// Pointer to the previous sample buffer, used for depop
+    CpuAddr previous_samples;
+};
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/volume.cpp

@@ -0,0 +1,72 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/volume.h"
+#include "common/fixed_point.h"
+#include "common/logging/log.h"
+
+namespace AudioCore::AudioRenderer {
+/**
+ * Apply volume to the input mix buffer, saving to the output buffer.
+ *
+ * @tparam Q           - Number of bits for fixed point operations.
+ * @param output       - Output mix buffer.
+ * @param input        - Input mix buffer.
+ * @param volume       - Volume applied to the input.
+ * @param sample_count - Number of samples to process.
+ */
+template <size_t Q>
+static void ApplyUniformGain(std::span<s32> output, std::span<const s32> input, const f32 volume,
+                             const u32 sample_count) {
+    if (volume == 1.0f) {
+        std::memcpy(output.data(), input.data(), input.size_bytes());
+    } else {
+        const Common::FixedPoint<64 - Q, Q> gain{volume};
+        for (u32 i = 0; i < sample_count; i++) {
+            output[i] = (input[i] * gain).to_int();
+        }
+    }
+}
+
+void VolumeCommand::Dump([[maybe_unused]] const ADSP::CommandListProcessor& processor,
+                         std::string& string) {
+    string += fmt::format("VolumeCommand");
+    string += fmt::format("\n\tinput {:02X}", input_index);
+    string += fmt::format("\n\toutput {:02X}", output_index);
+    string += fmt::format("\n\tvolume {:.8f}", volume);
+    string += "\n";
+}
+
+void VolumeCommand::Process(const ADSP::CommandListProcessor& processor) {
+    // If input and output buffers are the same, and the volume is 1.0f, this won't do
+    // anything, so just skip.
+    if (input_index == output_index && volume == 1.0f) {
+        return;
+    }
+
+    auto output{processor.mix_buffers.subspan(output_index * processor.sample_count,
+                                              processor.sample_count)};
+    auto input{processor.mix_buffers.subspan(input_index * processor.sample_count,
+                                             processor.sample_count)};
+
+    switch (precision) {
+    case 15:
+        ApplyUniformGain<15>(output, input, volume, processor.sample_count);
+        break;
+
+    case 23:
+        ApplyUniformGain<23>(output, input, volume, processor.sample_count);
+        break;
+
+    default:
+        LOG_ERROR(Service_Audio, "Invalid precision {}", precision);
+        break;
+    }
+}
+
+bool VolumeCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/volume.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for applying volume to a mix buffer.
+ */
+struct VolumeCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Fixed point precision
+    u8 precision;
+    /// Input mix buffer index
+    s16 input_index;
+    /// Output mix buffer index
+    s16 output_index;
+    /// Mix volume applied to the input
+    f32 volume;
+};
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/volume_ramp.cpp

@@ -0,0 +1,84 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/renderer/adsp/command_list_processor.h"
+#include "audio_core/renderer/command/mix/volume_ramp.h"
+#include "common/fixed_point.h"
+
+namespace AudioCore::AudioRenderer {
+/**
+ * Apply volume with ramping to the input mix buffer, saving to the output buffer.
+ *
+ * @tparam Q           - Number of bits for fixed point operations.
+ * @param output       - Output mix buffers.
+ * @param input        - Input mix buffers.
+ * @param volume       - Volume applied to the input.
+ * @param ramp         - Ramp applied to volume every sample.
+ * @param sample_count - Number of samples to process.
+ */
+template <size_t Q>
+static void ApplyLinearEnvelopeGain(std::span<s32> output, std::span<const s32> input,
+                                    const f32 volume, const f32 ramp_, const u32 sample_count) {
+    if (volume == 0.0f && ramp_ == 0.0f) {
+        std::memset(output.data(), 0, output.size_bytes());
+    } else if (volume == 1.0f && ramp_ == 0.0f) {
+        std::memcpy(output.data(), input.data(), output.size_bytes());
+    } else if (ramp_ == 0.0f) {
+        const Common::FixedPoint<64 - Q, Q> gain{volume};
+        for (u32 i = 0; i < sample_count; i++) {
+            output[i] = (input[i] * gain).to_int();
+        }
+    } else {
+        Common::FixedPoint<64 - Q, Q> gain{volume};
+        const Common::FixedPoint<64 - Q, Q> ramp{ramp_};
+        for (u32 i = 0; i < sample_count; i++) {
+            output[i] = (input[i] * gain).to_int();
+            gain += ramp;
+        }
+    }
+}
+
+void VolumeRampCommand::Dump(const ADSP::CommandListProcessor& processor, std::string& string) {
+    const auto ramp{(volume - prev_volume) / static_cast<f32>(processor.sample_count)};
+    string += fmt::format("VolumeRampCommand");
+    string += fmt::format("\n\tinput {:02X}", input_index);
+    string += fmt::format("\n\toutput {:02X}", output_index);
+    string += fmt::format("\n\tvolume {:.8f}", volume);
+    string += fmt::format("\n\tprev_volume {:.8f}", prev_volume);
+    string += fmt::format("\n\tramp {:.8f}", ramp);
+    string += "\n";
+}
+
+void VolumeRampCommand::Process(const ADSP::CommandListProcessor& processor) {
+    auto output{processor.mix_buffers.subspan(output_index * processor.sample_count,
+                                              processor.sample_count)};
+    auto input{processor.mix_buffers.subspan(input_index * processor.sample_count,
+                                             processor.sample_count)};
+    const auto ramp{(volume - prev_volume) / static_cast<f32>(processor.sample_count)};
+
+    // If input and output buffers are the same, and the volume is 1.0f, and there's no ramping,
+    // this won't do anything, so just skip.
+    if (input_index == output_index && prev_volume == 1.0f && ramp == 0.0f) {
+        return;
+    }
+
+    switch (precision) {
+    case 15:
+        ApplyLinearEnvelopeGain<15>(output, input, prev_volume, ramp, processor.sample_count);
+        break;
+
+    case 23:
+        ApplyLinearEnvelopeGain<23>(output, input, prev_volume, ramp, processor.sample_count);
+        break;
+
+    default:
+        LOG_ERROR(Service_Audio, "Invalid precision {}", precision);
+        break;
+    }
+}
+
+bool VolumeRampCommand::Verify(const ADSP::CommandListProcessor& processor) {
+    return true;
+}
+
+} // namespace AudioCore::AudioRenderer

src/audio_core/renderer/command/mix/volume_ramp.h

@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <string>
+
+#include "audio_core/renderer/command/icommand.h"
+#include "common/common_types.h"
+
+namespace AudioCore::AudioRenderer {
+namespace ADSP {
+class CommandListProcessor;
+}
+
+/**
+ * AudioRenderer command for applying volume to a mix buffer, with ramping for the volume to smooth
+ * out the transition.
+ */
+struct VolumeRampCommand : ICommand {
+    /**
+     * Print this command's information to a string.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @param string    - The string to print into.
+     */
+    void Dump(const ADSP::CommandListProcessor& processor, std::string& string) override;
+
+    /**
+     * Process this command.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     */
+    void Process(const ADSP::CommandListProcessor& processor) override;
+
+    /**
+     * Verify this command's data is valid.
+     *
+     * @param processor - The CommandListProcessor processing this command.
+     * @return True if the command is valid, otherwise false.
+     */
+    bool Verify(const ADSP::CommandListProcessor& processor) override;
+
+    /// Fixed point precision
+    u8 precision;
+    /// Input mix buffer index
+    s16 input_index;
+    /// Output mix buffer index
+    s16 output_index;
+    /// Previous mix volume applied to the input
+    f32 prev_volume;
+    /// Current mix volume applied to the input
+    f32 volume;
+};
+
+} // namespace AudioCore::AudioRenderer