6 files changed, 368 insertions, 71 deletions
diff --git a/Ryujinx.Audio/Renderer/Dsp/Command/DelayCommand.cs b/Ryujinx.Audio/Renderer/Dsp/Command/DelayCommand.cs
index 8d416cc3..186efb6a 100644
--- a/Ryujinx.Audio/Renderer/Dsp/Command/DelayCommand.cs
+++ b/Ryujinx.Audio/Renderer/Dsp/Command/DelayCommand.cs
@@ -18,8 +18,10 @@
 using Ryujinx.Audio.Renderer.Dsp.State;
 using Ryujinx.Audio.Renderer.Parameter.Effect;
 using Ryujinx.Audio.Renderer.Server.Effect;
+using Ryujinx.Audio.Renderer.Utils.Math;
 using System;
 using System.Diagnostics;
+using System.Numerics;
 using System.Runtime.CompilerServices;
 
 namespace Ryujinx.Audio.Renderer.Dsp.Command
@@ -70,7 +72,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             DataSourceHelper.RemapChannelResourceMappingToLegacy(newEffectChannelMappingSupported, OutputBufferIndices);
         }
 
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
         private unsafe void ProcessDelayMono(ref DelayState state, float* outputBuffer, float* inputBuffer, uint sampleCount)
         {
             float feedbackGain = FixedPointHelper.ToFloat(Parameter.FeedbackGain, FixedPointPrecision);
@@ -83,133 +85,148 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
                 float input = inputBuffer[i] * 64;
                 float delayLineValue = state.DelayLines[0].Read();
 
-                float lowPassResult = (input * inGain + delayLineValue * feedbackGain) * state.LowPassBaseGain + state.LowPassZ[0] * state.LowPassFeedbackGain;
+                float temp = input * inGain + delayLineValue * feedbackGain;
 
-                state.LowPassZ[0] = lowPassResult;
-
-                state.DelayLines[0].Update(lowPassResult);
+                state.UpdateLowPassFilter(ref temp, 1);
 
                 outputBuffer[i] = (input * dryGain + delayLineValue * outGain) / 64;
             }
         }
 
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
         private unsafe void ProcessDelayStereo(ref DelayState state, Span<IntPtr> outputBuffers, ReadOnlySpan<IntPtr> inputBuffers, uint sampleCount)
         {
             const ushort channelCount = 2;
 
-            Span<float> channelInput = stackalloc float[channelCount];
-            Span<float> delayLineValues = stackalloc float[channelCount];
-            Span<float> temp = stackalloc float[channelCount];
-
             float delayFeedbackBaseGain = state.DelayFeedbackBaseGain;
             float delayFeedbackCrossGain = state.DelayFeedbackCrossGain;
             float inGain = FixedPointHelper.ToFloat(Parameter.InGain, FixedPointPrecision);
             float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
             float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
 
+            Matrix2x2 delayFeedback = new Matrix2x2(delayFeedbackBaseGain , delayFeedbackCrossGain,
+                                                    delayFeedbackCrossGain, delayFeedbackBaseGain);
+
             for (int i = 0; i < sampleCount; i++)
             {
-                for (int j = 0; j < channelCount; j++)
+                Vector2 channelInput = new Vector2
                 {
-                    channelInput[j] = *((float*)inputBuffers[j] + i) * 64;
-                    delayLineValues[j] = state.DelayLines[j].Read();
-                }
-
-                temp[0] = channelInput[0] * inGain + delayLineValues[1] * delayFeedbackCrossGain + delayLineValues[0] * delayFeedbackBaseGain;
-                temp[1] = channelInput[1] * inGain + delayLineValues[0] * delayFeedbackCrossGain + delayLineValues[1] * delayFeedbackBaseGain;
+                    X = *((float*)inputBuffers[0] + i) * 64,
+                    Y = *((float*)inputBuffers[1] + i) * 64,
+                };
 
-                for (int j = 0; j < channelCount; j++)
+                Vector2 delayLineValues = new Vector2()
                 {
-                    float lowPassResult = state.LowPassFeedbackGain * state.LowPassZ[j] + temp[j] * state.LowPassBaseGain;
+                    X = state.DelayLines[0].Read(),
+                    Y = state.DelayLines[1].Read(),
+                };
 
-                    state.LowPassZ[j] = lowPassResult;
-                    state.DelayLines[j].Update(lowPassResult);
+                Vector2 temp = MatrixHelper.Transform(ref channelInput, ref delayFeedback) + channelInput * inGain;
 
-                    *((float*)outputBuffers[j] + i) = (channelInput[j] * dryGain + delayLineValues[j] * outGain) / 64;
-                }
+                state.UpdateLowPassFilter(ref Unsafe.As<Vector2, float>(ref temp), channelCount);
+
+                *((float*)outputBuffers[0] + i) = (channelInput.X * dryGain + delayLineValues.X * outGain) / 64;
+                *((float*)outputBuffers[1] + i) = (channelInput.Y * dryGain + delayLineValues.Y * outGain) / 64;
             }
         }
 
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
         private unsafe void ProcessDelayQuadraphonic(ref DelayState state, Span<IntPtr> outputBuffers, ReadOnlySpan<IntPtr> inputBuffers, uint sampleCount)
         {
             const ushort channelCount = 4;
 
-            Span<float> channelInput = stackalloc float[channelCount];
-            Span<float> delayLineValues = stackalloc float[channelCount];
-            Span<float> temp = stackalloc float[channelCount];
-
             float delayFeedbackBaseGain = state.DelayFeedbackBaseGain;
             float delayFeedbackCrossGain = state.DelayFeedbackCrossGain;
             float inGain = FixedPointHelper.ToFloat(Parameter.InGain, FixedPointPrecision);
             float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
             float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
 
+            Matrix4x4 delayFeedback = new Matrix4x4(delayFeedbackBaseGain , delayFeedbackCrossGain, delayFeedbackCrossGain, 0.0f,
+                                                    delayFeedbackCrossGain, delayFeedbackBaseGain , 0.0f                  , delayFeedbackCrossGain,
+                                                    delayFeedbackCrossGain, 0.0f                  , delayFeedbackBaseGain , delayFeedbackCrossGain,
+                                                    0.0f                  , delayFeedbackCrossGain, delayFeedbackCrossGain, delayFeedbackBaseGain);
+
+
             for (int i = 0; i < sampleCount; i++)
             {
-                for (int j = 0; j < channelCount; j++)
+                Vector4 channelInput = new Vector4
                 {
-                    channelInput[j] = *((float*)inputBuffers[j] + i) * 64;
-                    delayLineValues[j] = state.DelayLines[j].Read();
-                }
-
-                temp[0] = channelInput[0] * inGain + (delayLineValues[2] + delayLineValues[1]) * delayFeedbackCrossGain + delayLineValues[0] * delayFeedbackBaseGain;
-                temp[1] = channelInput[1] * inGain + (delayLineValues[0] + delayLineValues[3]) * delayFeedbackCrossGain + delayLineValues[1] * delayFeedbackBaseGain;
-                temp[2] = channelInput[2] * inGain + (delayLineValues[3] + delayLineValues[0]) * delayFeedbackCrossGain + delayLineValues[2] * delayFeedbackBaseGain;
-                temp[3] = channelInput[3] * inGain + (delayLineValues[1] + delayLineValues[2]) * delayFeedbackCrossGain + delayLineValues[3] * delayFeedbackBaseGain;
+                    X = *((float*)inputBuffers[0] + i) * 64,
+                    Y = *((float*)inputBuffers[1] + i) * 64,
+                    Z = *((float*)inputBuffers[2] + i) * 64,
+                    W = *((float*)inputBuffers[3] + i) * 64
+                };
 
-                for (int j = 0; j < channelCount; j++)
+                Vector4 delayLineValues = new Vector4()
                 {
-                    float lowPassResult = state.LowPassFeedbackGain * state.LowPassZ[j] + temp[j] * state.LowPassBaseGain;
-
-                    state.LowPassZ[j] = lowPassResult;
-                    state.DelayLines[j].Update(lowPassResult);
-
-                    *((float*)outputBuffers[j] + i) = (channelInput[j] * dryGain + delayLineValues[j] * outGain) / 64;
-                }
+                    X = state.DelayLines[0].Read(),
+                    Y = state.DelayLines[1].Read(),
+                    Z = state.DelayLines[2].Read(),
+                    W = state.DelayLines[3].Read()
+                };
+
+                Vector4 temp = MatrixHelper.Transform(ref channelInput, ref delayFeedback) + channelInput * inGain;
+                
+                state.UpdateLowPassFilter(ref Unsafe.As<Vector4, float>(ref temp), channelCount);
+
+                *((float*)outputBuffers[0] + i) = (channelInput.X * dryGain + delayLineValues.X * outGain) / 64;
+                *((float*)outputBuffers[1] + i) = (channelInput.Y * dryGain + delayLineValues.Y * outGain) / 64;
+                *((float*)outputBuffers[2] + i) = (channelInput.Z * dryGain + delayLineValues.Z * outGain) / 64;
+                *((float*)outputBuffers[3] + i) = (channelInput.W * dryGain + delayLineValues.W * outGain) / 64;
             }
         }
 
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        [MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
         private unsafe void ProcessDelaySurround(ref DelayState state, Span<IntPtr> outputBuffers, ReadOnlySpan<IntPtr> inputBuffers, uint sampleCount)
         {
             const ushort channelCount = 6;
 
-            Span<float> channelInput = stackalloc float[channelCount];
-            Span<float> delayLineValues = stackalloc float[channelCount];
-            Span<float> temp = stackalloc float[channelCount];
-
+            float feedbackGain = FixedPointHelper.ToFloat(Parameter.FeedbackGain, FixedPointPrecision);
             float delayFeedbackBaseGain = state.DelayFeedbackBaseGain;
             float delayFeedbackCrossGain = state.DelayFeedbackCrossGain;
             float inGain = FixedPointHelper.ToFloat(Parameter.InGain, FixedPointPrecision);
             float dryGain = FixedPointHelper.ToFloat(Parameter.DryGain, FixedPointPrecision);
             float outGain = FixedPointHelper.ToFloat(Parameter.OutGain, FixedPointPrecision);
 
+            Matrix6x6 delayFeedback = new Matrix6x6(delayFeedbackBaseGain , 0.0f                  , 0.0f                  , 0.0f                  , delayFeedbackCrossGain, delayFeedbackCrossGain,
+                                                    0.0f                  , delayFeedbackBaseGain , 0.0f                  , delayFeedbackCrossGain, delayFeedbackCrossGain, 0.0f                  ,
+                                                    delayFeedbackCrossGain, 0.0f                  , delayFeedbackBaseGain , delayFeedbackCrossGain, 0.0f                  , 0.0f                  ,
+                                                    0.0f                  , delayFeedbackCrossGain, delayFeedbackCrossGain, delayFeedbackBaseGain , 0.0f                  , 0.0f                  ,
+                                                    delayFeedbackCrossGain, delayFeedbackCrossGain, 0.0f                  , 0.0f                  , delayFeedbackBaseGain , 0.0f                  ,
+                                                    0.0f                  , 0.0f                  , 0.0f                  , 0.0f                  , 0.0f                  , feedbackGain);
+
             for (int i = 0; i < sampleCount; i++)
             {
-                for (int j = 0; j < channelCount; j++)
+                Vector6 channelInput = new Vector6
                 {
-                    channelInput[j] = *((float*)inputBuffers[j] + i) * 64;
-                    delayLineValues[j] = state.DelayLines[j].Read();
-                }
-
-                temp[0] = channelInput[0] * inGain + (delayLineValues[2] + delayLineValues[4]) * delayFeedbackCrossGain + delayLineValues[0] * delayFeedbackBaseGain;
-                temp[1] = channelInput[1] * inGain + (delayLineValues[4] + delayLineValues[3]) * delayFeedbackCrossGain + delayLineValues[1] * delayFeedbackBaseGain;
-                temp[2] = channelInput[2] * inGain + (delayLineValues[3] + delayLineValues[0]) * delayFeedbackCrossGain + delayLineValues[2] * delayFeedbackBaseGain;
-                temp[3] = channelInput[3] * inGain + (delayLineValues[1] + delayLineValues[2]) * delayFeedbackCrossGain + delayLineValues[3] * delayFeedbackBaseGain;
-                temp[4] = channelInput[4] * inGain + (delayLineValues[0] + delayLineValues[1]) * delayFeedbackCrossGain + delayLineValues[4] * delayFeedbackBaseGain;
-                temp[5] = channelInput[5] * inGain + delayLineValues[5] * delayFeedbackBaseGain;
-
-                for (int j = 0; j < channelCount; j++)
+                    X = *((float*)inputBuffers[0] + i) * 64,
+                    Y = *((float*)inputBuffers[1] + i) * 64,
+                    Z = *((float*)inputBuffers[2] + i) * 64,
+                    W = *((float*)inputBuffers[3] + i) * 64,
+                    V = *((float*)inputBuffers[4] + i) * 64,
+                    U = *((float*)inputBuffers[5] + i) * 64
+                };
+
+                Vector6 delayLineValues = new Vector6
                 {
-                    float lowPassResult = state.LowPassFeedbackGain * state.LowPassZ[j] + temp[j] * state.LowPassBaseGain;
-
-                    state.LowPassZ[j] = lowPassResult;
-                    state.DelayLines[j].Update(lowPassResult);
-
-                    *((float*)outputBuffers[j] + i) = (channelInput[j] * dryGain + delayLineValues[j] * outGain) / 64;
-                }
+                    X = state.DelayLines[0].Read(),
+                    Y = state.DelayLines[1].Read(),
+                    Z = state.DelayLines[2].Read(),
+                    W = state.DelayLines[3].Read(),
+                    V = state.DelayLines[4].Read(),
+                    U = state.DelayLines[5].Read()
+                };
+
+                Vector6 temp = MatrixHelper.Transform(ref channelInput, ref delayFeedback) + channelInput * inGain;
+
+                state.UpdateLowPassFilter(ref Unsafe.As<Vector6, float>(ref temp), channelCount);
+
+                *((float*)outputBuffers[0] + i) = (channelInput.X * dryGain + delayLineValues.X * outGain) / 64;
+                *((float*)outputBuffers[1] + i) = (channelInput.Y * dryGain + delayLineValues.Y * outGain) / 64;
+                *((float*)outputBuffers[2] + i) = (channelInput.Z * dryGain + delayLineValues.Z * outGain) / 64;
+                *((float*)outputBuffers[3] + i) = (channelInput.W * dryGain + delayLineValues.W * outGain) / 64;
+                *((float*)outputBuffers[4] + i) = (channelInput.V * dryGain + delayLineValues.V * outGain) / 64;
+                *((float*)outputBuffers[5] + i) = (channelInput.U * dryGain + delayLineValues.U * outGain) / 64;
             }
         }
 
diff --git a/Ryujinx.Audio/Renderer/Dsp/State/DelayState.cs b/Ryujinx.Audio/Renderer/Dsp/State/DelayState.cs
index 7b694fb0..21ffbebd 100644
--- a/Ryujinx.Audio/Renderer/Dsp/State/DelayState.cs
+++ b/Ryujinx.Audio/Renderer/Dsp/State/DelayState.cs
@@ -17,6 +17,7 @@
 
 using Ryujinx.Audio.Renderer.Dsp.Effect;
 using Ryujinx.Audio.Renderer.Parameter.Effect;
+using System.Runtime.CompilerServices;
 
 namespace Ryujinx.Audio.Renderer.Dsp.State
 {
@@ -43,7 +44,6 @@ namespace Ryujinx.Audio.Renderer.Dsp.State
             {
                 DelayLines[i] = new DelayLine(sampleRate, parameter.DelayTimeMax);
                 DelayLines[i].SetDelay(parameter.DelayTime);
-                LowPassZ[0] = 0;
             }
 
             UpdateParameter(ref parameter);
@@ -69,5 +69,16 @@ namespace Ryujinx.Audio.Renderer.Dsp.State
             LowPassFeedbackGain = 0.95f * FixedPointHelper.ToFloat(parameter.LowPassAmount, FixedPointPrecision);
             LowPassBaseGain = 1.0f - LowPassFeedbackGain;
         }
+
+        public void UpdateLowPassFilter(ref float tempRawRef, uint channelCount)
+        {
+            for (int i = 0; i < channelCount; i++)
+            {
+                float lowPassResult = LowPassFeedbackGain * LowPassZ[i] + Unsafe.Add(ref tempRawRef, i) * LowPassBaseGain;
+
+                LowPassZ[i] = lowPassResult;
+                DelayLines[i].Update(lowPassResult);
+            }
+        }
     }
 }
diff --git a/Ryujinx.Audio/Renderer/Utils/Math/Matrix2x2.cs b/Ryujinx.Audio/Renderer/Utils/Math/Matrix2x2.cs
new file mode 100644
index 00000000..f25b1537
--- /dev/null
+++ b/Ryujinx.Audio/Renderer/Utils/Math/Matrix2x2.cs
@@ -0,0 +1,71 @@
+namespace Ryujinx.Audio.Renderer.Utils.Math
+{
+    record struct Matrix2x2
+    {
+        public float M11;
+        public float M12;
+        public float M21;
+        public float M22;
+
+        public Matrix2x2(float m11, float m12,
+                         float m21, float m22)
+        {
+            M11 = m11;
+            M12 = m12;
+
+            M21 = m21;
+            M22 = m22;
+        }
+
+        public static Matrix2x2 operator +(Matrix2x2 value1, Matrix2x2 value2)
+        {
+            Matrix2x2 m;
+
+            m.M11 = value1.M11 + value2.M11;
+            m.M12 = value1.M12 + value2.M12;
+            m.M21 = value1.M21 + value2.M21;
+            m.M22 = value1.M22 + value2.M22;
+
+            return m;
+        }
+
+        public static Matrix2x2 operator -(Matrix2x2 value1, float value2)
+        {
+            Matrix2x2 m;
+
+            m.M11 = value1.M11 - value2;
+            m.M12 = value1.M12 - value2;
+            m.M21 = value1.M21 - value2;
+            m.M22 = value1.M22 - value2;
+
+            return m;
+        }
+
+        public static Matrix2x2 operator *(Matrix2x2 value1, float value2)
+        {
+            Matrix2x2 m;
+
+            m.M11 = value1.M11 * value2;
+            m.M12 = value1.M12 * value2;
+            m.M21 = value1.M21 * value2;
+            m.M22 = value1.M22 * value2;
+
+            return m;
+        }
+
+        public static Matrix2x2 operator *(Matrix2x2 value1, Matrix2x2 value2)
+        {
+            Matrix2x2 m;
+
+            // First row
+            m.M11 = value1.M11 * value2.M11 + value1.M12 * value2.M21;
+            m.M12 = value1.M11 * value2.M12 + value1.M12 * value2.M22;
+
+            // Second row
+            m.M21 = value1.M21 * value2.M11 + value1.M22 * value2.M21;
+            m.M22 = value1.M21 * value2.M12 + value1.M22 * value2.M22;
+
+            return m;
+        }
+    }
+}
diff --git a/Ryujinx.Audio/Renderer/Utils/Math/Matrix6x6.cs b/Ryujinx.Audio/Renderer/Utils/Math/Matrix6x6.cs
new file mode 100644
index 00000000..41e2fc84
--- /dev/null
+++ b/Ryujinx.Audio/Renderer/Utils/Math/Matrix6x6.cs
@@ -0,0 +1,97 @@
+namespace Ryujinx.Audio.Renderer.Utils.Math
+{
+    record struct Matrix6x6
+    {
+        public float M11;
+        public float M12;
+        public float M13;
+        public float M14;
+        public float M15;
+        public float M16;
+
+        public float M21;
+        public float M22;
+        public float M23;
+        public float M24;
+        public float M25;
+        public float M26;
+
+        public float M31;
+        public float M32;
+        public float M33;
+        public float M34;
+        public float M35;
+        public float M36;
+
+        public float M41;
+        public float M42;
+        public float M43;
+        public float M44;
+        public float M45;
+        public float M46;
+
+        public float M51;
+        public float M52;
+        public float M53;
+        public float M54;
+        public float M55;
+        public float M56;
+
+        public float M61;
+        public float M62;
+        public float M63;
+        public float M64;
+        public float M65;
+        public float M66;
+
+        public Matrix6x6(float m11, float m12, float m13, float m14, float m15, float m16,
+                         float m21, float m22, float m23, float m24, float m25, float m26,
+                         float m31, float m32, float m33, float m34, float m35, float m36,
+                         float m41, float m42, float m43, float m44, float m45, float m46,
+                         float m51, float m52, float m53, float m54, float m55, float m56,
+                         float m61, float m62, float m63, float m64, float m65, float m66)
+        {
+            M11 = m11;
+            M12 = m12;
+            M13 = m13;
+            M14 = m14;
+            M15 = m15;
+            M16 = m16;
+
+            M21 = m21;
+            M22 = m22;
+            M23 = m23;
+            M24 = m24;
+            M25 = m25;
+            M26 = m26;
+
+            M31 = m31;
+            M32 = m32;
+            M33 = m33;
+            M34 = m34;
+            M35 = m35;
+            M36 = m36;
+
+            M41 = m41;
+            M42 = m42;
+            M43 = m43;
+            M44 = m44;
+            M45 = m45;
+            M46 = m46;
+
+            M51 = m51;
+            M52 = m52;
+            M53 = m53;
+            M54 = m54;
+            M55 = m55;
+            M56 = m56;
+
+            M61 = m61;
+            M62 = m62;
+            M63 = m63;
+            M64 = m64;
+            M65 = m65;
+            M66 = m66;
+        }
+    }
+}
diff --git a/Ryujinx.Audio/Renderer/Utils/Math/MatrixHelper.cs b/Ryujinx.Audio/Renderer/Utils/Math/MatrixHelper.cs
new file mode 100644
index 00000000..3fbffa94
--- /dev/null
+++ b/Ryujinx.Audio/Renderer/Utils/Math/MatrixHelper.cs
@@ -0,0 +1,45 @@
+using Ryujinx.Audio.Renderer.Utils.Math;
+using System.Numerics;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Audio.Renderer.Dsp
+{
+    static class MatrixHelper
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Vector6 Transform(ref Vector6 value1, ref Matrix6x6 value2)
+        {
+            return new Vector6
+            {
+                X = value2.M11 * value1.X + value2.M12 * value1.Y + value2.M13 * value1.Z + value2.M14 * value1.W + value2.M15 * value1.V + value2.M16 * value1.U,
+                Y = value2.M21 * value1.X + value2.M22 * value1.Y + value2.M23 * value1.Z + value2.M24 * value1.W + value2.M25 * value1.V + value2.M26 * value1.U,
+                Z = value2.M31 * value1.X + value2.M32 * value1.Y + value2.M33 * value1.Z + value2.M34 * value1.W + value2.M35 * value1.V + value2.M36 * value1.U,
+                W = value2.M41 * value1.X + value2.M42 * value1.Y + value2.M43 * value1.Z + value2.M44 * value1.W + value2.M45 * value1.V + value2.M46 * value1.U,
+                V = value2.M51 * value1.X + value2.M52 * value1.Y + value2.M53 * value1.Z + value2.M54 * value1.W + value2.M55 * value1.V + value2.M56 * value1.U,
+                U = value2.M61 * value1.X + value2.M62 * value1.Y + value2.M63 * value1.Z + value2.M64 * value1.W + value2.M65 * value1.V + value2.M66 * value1.U,
+            };
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Vector4 Transform(ref Vector4 value1, ref Matrix4x4 value2)
+        {
+            return new Vector4
+            {
+                X = value2.M11 * value1.X + value2.M12 * value1.Y + value2.M13 * value1.Z + value2.M14 * value1.W,
+                Y = value2.M21 * value1.X + value2.M22 * value1.Y + value2.M23 * value1.Z + value2.M24 * value1.W,
+                Z = value2.M31 * value1.X + value2.M32 * value1.Y + value2.M33 * value1.Z + value2.M34 * value1.W,
+                W = value2.M41 * value1.X + value2.M42 * value1.Y + value2.M43 * value1.Z + value2.M44 * value1.W
+            };
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Vector2 Transform(ref Vector2 value1, ref Matrix2x2 value2)
+        {
+            return new Vector2
+            {
+                X = value2.M11 * value1.X + value2.M12 * value1.Y,
+                Y = value2.M21 * value1.X + value2.M22 * value1.Y,
+            };
+        }
+    }
+}
diff --git a/Ryujinx.Audio/Renderer/Utils/Math/Vector6.cs b/Ryujinx.Audio/Renderer/Utils/Math/Vector6.cs
new file mode 100644
index 00000000..b2cd481b
--- /dev/null
+++ b/Ryujinx.Audio/Renderer/Utils/Math/Vector6.cs
@@ -0,0 +1,56 @@
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Audio.Renderer.Utils.Math
+{
+    record struct Vector6
+    {
+        public float X;
+        public float Y;
+        public float Z;
+        public float W;
+        public float V;
+        public float U;
+
+        public Vector6(float value) : this(value, value, value, value, value, value)
+        {
+        }
+
+        public Vector6(float x, float y, float z, float w, float v, float u)
+        {
+            X = x;
+            Y = y;
+            Z = z;
+            W = w;
+            V = v;
+            U = u;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Vector6 operator +(Vector6 left, Vector6 right)
+        {
+            return new Vector6(left.X + right.X,
+                               left.Y + right.Y,
+                               left.Z + right.Z,
+                               left.W + right.W,
+                               left.V + right.V,
+                               left.U + right.U);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Vector6 operator *(Vector6 left, Vector6 right)
+        {
+            return new Vector6(left.X * right.X,
+                               left.Y * right.Y,
+                               left.Z * right.Z,
+                               left.W * right.W,
+                               left.V * right.V,
+                               left.U * right.U);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Vector6 operator *(Vector6 left, float right)
+        {
+            return left * new Vector6(right);
+        }
+    }
+}