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Backport Audio - Replace LUT approximation with original sound mixing formula

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vailkyte 2023-05-18 08:10:40 -05:00 committed by GitHub
parent 08b648e547
commit 222b6243f1
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1 changed files with 3 additions and 3 deletions
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6
Core/SoundMixer.cpp
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@ -228,10 +228,10 @@ double SoundMixer::GetChannelOutput(AudioChannel channel, bool forRightChannel)
int16_t SoundMixer::GetOutputVolume(bool forRightChannel)
{
double squareOutput = GetChannelOutput(AudioChannel::Square1, forRightChannel) + GetChannelOutput(AudioChannel::Square2, forRightChannel);
double tndOutput = 3 * GetChannelOutput(AudioChannel::Triangle, forRightChannel) + 2 * GetChannelOutput(AudioChannel::Noise, forRightChannel) + GetChannelOutput(AudioChannel::DMC, forRightChannel);
double tndOutput = GetChannelOutput(AudioChannel::DMC, forRightChannel) + 2.7516713261 * GetChannelOutput(AudioChannel::Triangle, forRightChannel) + 1.8493587125 * GetChannelOutput(AudioChannel::Noise, forRightChannel);
uint16_t squareVolume = (uint16_t)(477600 / (8128.0 / squareOutput + 100.0));
uint16_t tndVolume = (uint16_t)(818350 / (24329.0 / tndOutput + 100.0));
uint16_t squareVolume = (uint16_t)((95.88*5000.0) / (8128.0 / squareOutput + 100.0));
uint16_t tndVolume = (uint16_t)((159.79*5000.0) / (22638.0 / tndOutput + 100.0));
return (int16_t)(squareVolume + tndVolume +
GetChannelOutput(AudioChannel::FDS, forRightChannel) * 20 +