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bug 172: hack to fix sbsms inverted pitch ratio and sampling rate issues

This commit is contained in:
mchinen 2010-12-15 16:54:13 +00:00
parent b0683e96f5
commit 2a81f349b9
2 changed files with 6 additions and 3 deletions
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3
src/effects/SBSMSEffect.cpp
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@ -223,7 +223,8 @@ bool EffectSBSMS::Process()
// SBSMS has a fixed sample rate - we just convert to its sample rate and then convert back
float srIn = leftTrack->GetRate();
float srSBSMS = 44100.0;
// mchinen: srSBMS doesn't do the right thing when it was set to fixed 44100. This seems to fix it.
float srSBSMS = leftTrack->GetRate();
// the resampler needs a callback to supply its samples
resampleBuf rb;

6
src/effects/TimeScale.cpp
View File

@ -105,12 +105,14 @@ bool EffectTimeScale::TransferParameters( Shuttle & shuttle )
inline double PercentChangeToRatio(double percentChange)
{
return 1.0 + percentChange / 100.0;
//mchinen hack: invert the ratio so it works with the sbsms bug.
return 1.0/(1.0 + percentChange / 100.0);
}
inline double HalfStepsToPercentChange(double halfSteps)
{
return 100.0 * (pow(2.0,halfSteps/12.0) - 1.0);
//mchinen hack: invert the ratio so it works with the sbsms bug.
return 1.0/(100.0 * (pow(2.0,halfSteps/12.0) - 1.0));
}
inline double PercentChangeToHalfSteps(double percentChange)