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-rw-r--r--Source/Core/AudioCommon/OpenALStream.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/Source/Core/AudioCommon/OpenALStream.cpp b/Source/Core/AudioCommon/OpenALStream.cpp
index fb0863e8e9..6b19f1e444 100644
--- a/Source/Core/AudioCommon/OpenALStream.cpp
+++ b/Source/Core/AudioCommon/OpenALStream.cpp
@@ -251,6 +251,14 @@ void OpenALStream::SoundLoop()
{
float dpl2[OAL_MAX_SAMPLES * OAL_MAX_BUFFERS * SURROUND_CHANNELS];
DPL2Decode(sampleBuffer, nSamples, dpl2);
+ // zero-out the subwoofer channel - DPL2Decode generates a pretty
+ // good 5.0 but not a good 5.1 output. Sadly there is not a 5.0
+ // AL_FORMAT_50CHN32 to make this super-explicit.
+ // DPL2Decode output: LEFTFRONT, RIGHTFRONT, CENTREFRONT, (sub), LEFTREAR, RIGHTREAR
+ for (u32 i=0; i < nSamples; ++i)
+ {
+ dpl2[i*SURROUND_CHANNELS + 3 /*sub/lfe*/] = 0.0f;
+ }
alBufferData(uiBufferTemp[iBuffersFilled], AL_FORMAT_51CHN32, dpl2, nSamples * FRAME_SURROUND_FLOAT, ulFrequency);
ALenum err = alGetError();
if (err == AL_INVALID_ENUM)