mirror of
https://github.com/thestk/stk
synced 2026-01-14 05:21:53 +00:00
50 lines
1.1 KiB
C++
50 lines
1.1 KiB
C++
/***************************************************/
|
|
/*! \class Modulate
|
|
\brief STK periodic/random modulator.
|
|
|
|
This class combines random and periodic
|
|
modulations to give a nice, natural human
|
|
modulation function.
|
|
|
|
by Perry R. Cook and Gary P. Scavone, 1995-2012.
|
|
*/
|
|
/***************************************************/
|
|
|
|
#include "Modulate.h"
|
|
|
|
namespace stk {
|
|
|
|
Modulate :: Modulate( void )
|
|
{
|
|
vibrato_.setFrequency( 6.0 );
|
|
vibratoGain_ = 0.04;
|
|
|
|
noiseRate_ = (unsigned int) ( 330.0 * Stk::sampleRate() / 22050.0 );
|
|
noiseCounter_ = noiseRate_;
|
|
|
|
randomGain_ = 0.05;
|
|
filter_.setPole( 0.999 );
|
|
filter_.setGain( randomGain_ );
|
|
|
|
Stk::addSampleRateAlert( this );
|
|
}
|
|
|
|
Modulate :: ~Modulate( void )
|
|
{
|
|
Stk::removeSampleRateAlert( this );
|
|
}
|
|
|
|
void Modulate :: sampleRateChanged( StkFloat newRate, StkFloat oldRate )
|
|
{
|
|
if ( !ignoreSampleRateChange_ )
|
|
noiseRate_ = (unsigned int ) ( newRate * noiseRate_ / oldRate );
|
|
}
|
|
|
|
void Modulate :: setRandomGain( StkFloat gain )
|
|
{
|
|
randomGain_ = gain;
|
|
filter_.setGain( randomGain_ );
|
|
}
|
|
|
|
} // stk namespace
|