Fix mono audio playback with XAudio2

2021-12-12 12:51:08 +01:00
parent 83046494a5
commit 224b9b8930
1 changed files with 8 additions and 1 deletions
--- a/Source/Engine/Audio/XAudio2/AudioBackendXAudio2.cpp
+++ b/Source/Engine/Audio/XAudio2/AudioBackendXAudio2.cpp
@@ -817,7 +817,14 @@ void AudioBackendXAudio2::Base_Update()
            dsp.DopplerFactor = 1.0f;
            Platform::MemoryClear(dsp.pMatrixCoefficients, sizeof(XAudio2::MatrixCoefficients));
            dsp.pMatrixCoefficients[0] = 1.0f;
-            dsp.pMatrixCoefficients[3] = 1.0f;
+            if (source.Format.nChannels == 1)
+            {
+                dsp.pMatrixCoefficients[1] = 1.0f;
+            }
+            else
+            {
+                dsp.pMatrixCoefficients[3] = 1.0f;
+            }
        }

        const float frequencyRatio = dopplerFactor * source.Pitch * dsp.DopplerFactor;