diff options
| author | Alex Marsev <alex.marsev@gmail.com> | 2015-10-10 20:38:19 +0300 |
|---|---|---|
| committer | Alex Marsev <alex.marsev@gmail.com> | 2015-10-10 20:38:19 +0300 |
| commit | a41c1dcb9b6bc08946656037220888c1a45a800b (patch) | |
| tree | 658da0380f34c4e7d03048f6dcdd90e81ea3abe9 | |
| parent | 92001efa60fa270533847d0dc9eda06eef62c232 (diff) | |
Don't use decibel approximation in DspMatrix
| -rw-r--r-- | src/DspMatrix.cpp | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/DspMatrix.cpp b/src/DspMatrix.cpp index a902dd0..afa6b03 100644 --- a/src/DspMatrix.cpp +++ b/src/DspMatrix.cpp @@ -55,7 +55,7 @@ namespace SaneAudioRenderer std::array<float, 18 * 18> BuildFullMatrix(DWORD inputMask, DWORD outputMask)
{
- const float minus3dB = 0.707945764f;
+ const float halfPower = 0.707113564f;
std::array<float, 18 * 18> matrix{};
@@ -99,8 +99,8 @@ namespace SaneAudioRenderer {
if (!(outputMask & SPEAKER_BACK_CENTER))
{
- feed(SPEAKER_BACK_CENTER, SPEAKER_BACK_LEFT, minus3dB);
- feed(SPEAKER_BACK_CENTER, SPEAKER_BACK_RIGHT, minus3dB);
+ feed(SPEAKER_BACK_CENTER, SPEAKER_BACK_LEFT, halfPower);
+ feed(SPEAKER_BACK_CENTER, SPEAKER_BACK_RIGHT, halfPower);
clear(SPEAKER_BACK_CENTER);
}
@@ -116,7 +116,7 @@ namespace SaneAudioRenderer }
else
{
- feed(SPEAKER_BACK_LEFT, SPEAKER_FRONT_LEFT, minus3dB);
+ feed(SPEAKER_BACK_LEFT, SPEAKER_FRONT_LEFT, halfPower);
}
clear(SPEAKER_BACK_LEFT);
@@ -134,7 +134,7 @@ namespace SaneAudioRenderer }
else
{
- feed(SPEAKER_BACK_RIGHT, SPEAKER_FRONT_RIGHT, minus3dB);
+ feed(SPEAKER_BACK_RIGHT, SPEAKER_FRONT_RIGHT, halfPower);
}
clear(SPEAKER_BACK_RIGHT);
@@ -145,20 +145,20 @@ namespace SaneAudioRenderer {
if (!(outputMask & SPEAKER_FRONT_CENTER))
{
- feed(SPEAKER_FRONT_CENTER, SPEAKER_FRONT_LEFT, minus3dB);
- feed(SPEAKER_FRONT_CENTER, SPEAKER_FRONT_RIGHT, minus3dB);
+ feed(SPEAKER_FRONT_CENTER, SPEAKER_FRONT_LEFT, halfPower);
+ feed(SPEAKER_FRONT_CENTER, SPEAKER_FRONT_RIGHT, halfPower);
clear(SPEAKER_FRONT_CENTER);
}
if (!(outputMask & SPEAKER_FRONT_LEFT) && (outputMask & SPEAKER_FRONT_CENTER))
{
- feed(SPEAKER_FRONT_LEFT, SPEAKER_FRONT_CENTER, minus3dB);
+ feed(SPEAKER_FRONT_LEFT, SPEAKER_FRONT_CENTER, halfPower);
clear(SPEAKER_FRONT_LEFT);
}
if (!(outputMask & SPEAKER_FRONT_RIGHT) && (outputMask & SPEAKER_FRONT_CENTER))
{
- feed(SPEAKER_FRONT_RIGHT, SPEAKER_FRONT_CENTER, minus3dB);
+ feed(SPEAKER_FRONT_RIGHT, SPEAKER_FRONT_CENTER, halfPower);
clear(SPEAKER_FRONT_RIGHT);
}
}
|