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Version 4.4.3

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This commit is contained in:
Gary Scavone
2013-09-29 23:21:29 +02:00
committed by Stephen Sinclair
parent baca57040b
commit 0aec39260a
223 changed files with 26190 additions and 11130 deletions
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32
src/BiQuad.cpp
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@@ -6,7 +6,7 @@
Methods are provided for creating a resonance or notch in the
frequency response while maintaining a constant filter gain.
by Perry R. Cook and Gary P. Scavone, 1995 - 2010.
by Perry R. Cook and Gary P. Scavone, 1995-2011.
*/
/***************************************************/
@@ -46,13 +46,24 @@ void BiQuad :: setCoefficients( StkFloat b0, StkFloat b1, StkFloat b2, StkFloat
void BiQuad :: sampleRateChanged( StkFloat newRate, StkFloat oldRate )
{
if ( !ignoreSampleRateChange_ ) {
errorString_ << "BiQuad::sampleRateChanged: you may need to recompute filter coefficients!";
oStream_ << "BiQuad::sampleRateChanged: you may need to recompute filter coefficients!";
handleError( StkError::WARNING );
}
}
void BiQuad :: setResonance(StkFloat frequency, StkFloat radius, bool normalize)
void BiQuad :: setResonance( StkFloat frequency, StkFloat radius, bool normalize )
{
#if defined(_STK_DEBUG_)
if ( frequency < 0.0 || frequency > 0.5 * Stk::sampleRate() ) {
oStream_ << "BiQuad::setResonance: frequency argument (" << frequency << ") is out of range!";
handleError( StkError::WARNING ); return;
}
if ( radius < 0.0 || radius >= 1.0 ) {
oStream_ << "BiQuad::setResonance: radius argument (" << radius << ") is out of range!";
handleError( StkError::WARNING ); return;
}
#endif
a_[2] = radius * radius;
a_[1] = -2.0 * radius * cos( TWO_PI * frequency / Stk::sampleRate() );
@@ -64,14 +75,25 @@ void BiQuad :: setResonance(StkFloat frequency, StkFloat radius, bool normalize)
}
}
void BiQuad :: setNotch(StkFloat frequency, StkFloat radius)
void BiQuad :: setNotch( StkFloat frequency, StkFloat radius )
{
#if defined(_STK_DEBUG_)
if ( frequency < 0.0 || frequency > 0.5 * Stk::sampleRate() ) {
oStream_ << "BiQuad::setNotch: frequency argument (" << frequency << ") is out of range!";
handleError( StkError::WARNING ); return;
}
if ( radius < 0.0 ) {
oStream_ << "BiQuad::setNotch: radius argument (" << radius << ") is negative!";
handleError( StkError::WARNING ); return;
}
#endif
// This method does not attempt to normalize the filter gain.
b_[2] = radius * radius;
b_[1] = (StkFloat) -2.0 * radius * cos( TWO_PI * (double) frequency / Stk::sampleRate() );
}
void BiQuad :: setEqualGainZeroes()
void BiQuad :: setEqualGainZeroes( void )
{
b_[0] = 1.0;
b_[1] = 0.0;