diff --git a/Ryujinx.Audio.Renderer/Dsp/Command/DataSourceVersion2Command.cs b/Ryujinx.Audio.Renderer/Dsp/Command/DataSourceVersion2Command.cs
index 7b68ff5dc5..e60a126fcf 100644
--- a/Ryujinx.Audio.Renderer/Dsp/Command/DataSourceVersion2Command.cs
+++ b/Ryujinx.Audio.Renderer/Dsp/Command/DataSourceVersion2Command.cs
@@ -63,7 +63,7 @@ namespace Ryujinx.Audio.Renderer.Dsp.Command
             SrcQuality = serverState.SrcQuality;
             CommandType = GetCommandTypeBySampleFormat(SampleFormat);
 
-            OutputBufferIndex = outputBufferIndex;
+            OutputBufferIndex = (ushort)(channelIndex + outputBufferIndex);
             SampleRate = serverState.SampleRate;
             Pitch = serverState.Pitch;
 
diff --git a/Ryujinx.Audio.Renderer/Server/CommandGenerator.cs b/Ryujinx.Audio.Renderer/Server/CommandGenerator.cs
index 41f1c3342c..00fddefa81 100644
--- a/Ryujinx.Audio.Renderer/Server/CommandGenerator.cs
+++ b/Ryujinx.Audio.Renderer/Server/CommandGenerator.cs
@@ -107,6 +107,8 @@ namespace Ryujinx.Audio.Renderer.Server
 
             if (!voiceState.WasPlaying)
             {
+                Debug.Assert(voiceState.SampleFormat != SampleFormat.Adpcm || channelIndex == 0);
+
                 if (_rendererContext.BehaviourContext.IsWaveBufferVersion2Supported())
                 {
                     _commandBuffer.GenerateDataSourceVersion2(ref voiceState,