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Try to make the volume level better match the perceived loudness.

This commit is contained in:
jdpurcell 2015-01-25 17:00:08 +00:00
parent d4d966680d
commit 47956e6d86
1 changed files with 12 additions and 1 deletions
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13
BizHawk.Client.EmuHawk/Sound.cs
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@ -100,7 +100,10 @@ namespace BizHawk.Client.EmuHawk
{
if (_deviceBuffer == null) return;
_deviceBuffer.Volume = Global.Config.SoundVolume == 0 ? -10000 : ((100 - Global.Config.SoundVolume) * -45);
double volume = Global.Config.SoundVolume / 100.0;
if (volume < 0.0) volume = 0.0;
if (volume > 1.0) volume = 1.0;
_deviceBuffer.Volume = CalculateDirectSoundVolumeLevel(volume);
}
public void StartSound()
@ -329,6 +332,14 @@ namespace BizHawk.Client.EmuHawk
{
return milliseconds * SampleRate / 1000;
}
/// <param name="level">Percent volume level from 0.0 to 1.0.</param>
private static int CalculateDirectSoundVolumeLevel(double level)
{
// I'm not sure if this is "technically" correct but it works okay
int range = (int)Volume.Maximum - (int)Volume.Minimum;
return (int)(Math.Pow(level, 0.15) * range) + (int)Volume.Minimum;
}
}
#else
// Dummy implementation for non-Windows platforms for now.