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SMS: balance audio better, fixes #2814

This commit is contained in:
alyosha-tas 2021-11-11 16:16:41 -05:00
parent c34c91b9eb
commit bbc5300297
2 changed files with 11 additions and 9 deletions
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2
src/BizHawk.Emulation.Cores/Consoles/Sega/SMS/SMS.ISoundProvider.cs
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@ -73,7 +73,7 @@ namespace BizHawk.Emulation.Cores.Sega.MasterSystem
int len = samples.Length;
for (int i = 0; i < len; i++)
{
short fmSample = fmSamples[i];
short fmSample = (short)(fmSamples[i] << 1);
samples[i] = (short)(samples[i] + fmSample);
}
}

18
src/BizHawk.Emulation.Cores/Sound/SN76489sms.cs
View File

@ -8,6 +8,8 @@ namespace BizHawk.Emulation.Cores.Components
public int current_sample_L;
public int current_sample_R;
int aud_scale = 21;
public SN76489sms()
{
Reset();
@ -235,21 +237,21 @@ namespace BizHawk.Emulation.Cores.Components
}
// now calculate the volume of each channel and add them together
current_sample_L = (A_L ? (A_up ? LogScale[Chan_vol[0]] * 42 : 0) : 0);
current_sample_L = (A_L ? (A_up ? LogScale[Chan_vol[0]] * aud_scale : 0) : 0);
current_sample_L += (B_L ? (B_up ? LogScale[Chan_vol[1]] * 42 : 0) : 0);
current_sample_L += (B_L ? (B_up ? LogScale[Chan_vol[1]] * aud_scale : 0) : 0);
current_sample_L += (C_L ? (C_up ? LogScale[Chan_vol[2]] * 42 : 0) : 0);
current_sample_L += (C_L ? (C_up ? LogScale[Chan_vol[2]] * aud_scale : 0) : 0);
current_sample_L += (noise_L ? (noise_bit ? LogScale[Chan_vol[3]] * 42 : 0) : 0);
current_sample_L += (noise_L ? (noise_bit ? LogScale[Chan_vol[3]] * aud_scale : 0) : 0);
current_sample_R = (A_R ? (A_up ? LogScale[Chan_vol[0]] * 42 : 0) : 0);
current_sample_R = (A_R ? (A_up ? LogScale[Chan_vol[0]] * aud_scale : 0) : 0);
current_sample_R += (B_R ? (B_up ? LogScale[Chan_vol[1]] * 42 : 0) : 0);
current_sample_R += (B_R ? (B_up ? LogScale[Chan_vol[1]] * aud_scale : 0) : 0);
current_sample_R += (C_R ? (C_up ? LogScale[Chan_vol[2]] * 42 : 0) : 0);
current_sample_R += (C_R ? (C_up ? LogScale[Chan_vol[2]] * aud_scale : 0) : 0);
current_sample_R += (noise_R ? (noise_bit ? LogScale[Chan_vol[3]] * 42 : 0) : 0);
current_sample_R += (noise_R ? (noise_bit ? LogScale[Chan_vol[3]] * aud_scale : 0) : 0);
}
}
}