e1lama/stk
1
0
Fork 0
mirror of https://github.com/thestk/stk synced 2026-01-15 05:51:52 +00:00
Code Issues Packages Projects Releases Wiki Activity

Version 4.4.3

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

129
src/Clarinet.cpp
View File

@@ -18,7 +18,7 @@
- Vibrato Gain = 1
- Breath Pressure = 128
by Perry R. Cook and Gary P. Scavone, 1995 - 2010.
by Perry R. Cook and Gary P. Scavone, 1995-2011.
*/
/***************************************************/
@@ -29,16 +29,24 @@ namespace stk {
Clarinet :: Clarinet( StkFloat lowestFrequency )
{
length_ = (long) (Stk::sampleRate() / lowestFrequency + 1);
delayLine_.setMaximumDelay( length_ );
delayLine_.setDelay( length_ / 2.0 );
reedTable_.setOffset((StkFloat) 0.7);
reedTable_.setSlope((StkFloat) -0.3);
if ( lowestFrequency <= 0.0 ) {
oStream_ << "Clarinet::Clarinet: argument is less than or equal to zero!";
handleError( StkError::FUNCTION_ARGUMENT );
}
vibrato_.setFrequency((StkFloat) 5.735);
outputGain_ = (StkFloat) 1.0;
noiseGain_ = (StkFloat) 0.2;
vibratoGain_ = (StkFloat) 0.1;
unsigned long nDelays = (unsigned long) ( 0.5 * Stk::sampleRate() / lowestFrequency );
delayLine_.setMaximumDelay( nDelays + 1 );
reedTable_.setOffset( 0.7 );
reedTable_.setSlope( -0.3 );
vibrato_.setFrequency( 5.735 );
outputGain_ = 1.0;
noiseGain_ = 0.2;
vibratoGain_ = 0.1;
this->setFrequency( 220.0 );
this->clear();
}
Clarinet :: ~Clarinet( void )
@@ -53,86 +61,77 @@ void Clarinet :: clear( void )
void Clarinet :: setFrequency( StkFloat frequency )
{
StkFloat freakency = frequency;
#if defined(_STK_DEBUG_)
if ( frequency <= 0.0 ) {
errorString_ << "Clarinet::setFrequency: parameter is less than or equal to zero!";
handleError( StkError::WARNING );
freakency = 220.0;
oStream_ << "Clarinet::setFrequency: argument is less than or equal to zero!";
handleError( StkError::WARNING ); return;
}
#endif
// Delay = length - approximate filter delay.
StkFloat delay = (Stk::sampleRate() / freakency) * 0.5 - 1.5;
if (delay <= 0.0) delay = 0.3;
else if (delay > length_) delay = length_;
delayLine_.setDelay(delay);
// Account for filter delay and one sample "lastOut" delay.
StkFloat delay = ( Stk::sampleRate() / frequency ) * 0.5 - filter_.phaseDelay( frequency ) - 1.0;
delayLine_.setDelay( delay );
}
void Clarinet :: startBlowing( StkFloat amplitude, StkFloat rate )
{
envelope_.setRate(rate);
envelope_.setTarget(amplitude);
if ( amplitude <= 0.0 || rate <= 0.0 ) {
oStream_ << "Clarinet::startBlowing: one or more arguments is less than or equal to zero!";
handleError( StkError::WARNING ); return;
}
envelope_.setRate( rate );
envelope_.setTarget( amplitude );
}
void Clarinet :: stopBlowing( StkFloat rate )
{
envelope_.setRate(rate);
envelope_.setTarget((StkFloat) 0.0);
if ( rate <= 0.0 ) {
oStream_ << "Clarinet::stopBlowing: argument is less than or equal to zero!";
handleError( StkError::WARNING ); return;
}
envelope_.setRate( rate );
envelope_.setTarget( 0.0 );
}
void Clarinet :: noteOn( StkFloat frequency, StkFloat amplitude )
{
this->setFrequency(frequency);
this->startBlowing((StkFloat) 0.55 + (amplitude * (StkFloat) 0.30), amplitude * (StkFloat) 0.005);
outputGain_ = amplitude + (StkFloat) 0.001;
#if defined(_STK_DEBUG_)
errorString_ << "Clarinet::NoteOn: frequency = " << frequency << ", amplitude = " << amplitude << '.';
handleError( StkError::DEBUG_WARNING );
#endif
this->setFrequency( frequency );
this->startBlowing( 0.55 + (amplitude * 0.30), amplitude * 0.005 );
outputGain_ = amplitude + 0.001;
}
void Clarinet :: noteOff( StkFloat amplitude )
{
this->stopBlowing( amplitude * 0.01 );
#if defined(_STK_DEBUG_)
errorString_ << "Clarinet::NoteOff: amplitude = " << amplitude << '.';
handleError( StkError::DEBUG_WARNING );
#endif
}
void Clarinet :: controlChange( int number, StkFloat value )
{
StkFloat norm = value * ONE_OVER_128;
if ( norm < 0 ) {
norm = 0.0;
errorString_ << "Clarinet::controlChange: control value less than zero ... setting to zero!";
handleError( StkError::WARNING );
}
else if ( norm > 1.0 ) {
norm = 1.0;
errorString_ << "Clarinet::controlChange: control value greater than 128.0 ... setting to 128.0!";
handleError( StkError::WARNING );
}
if (number == __SK_ReedStiffness_) // 2
reedTable_.setSlope((StkFloat) -0.44 + ( (StkFloat) 0.26 * norm ));
else if (number == __SK_NoiseLevel_) // 4
noiseGain_ = (norm * (StkFloat) 0.4);
else if (number == __SK_ModFrequency_) // 11
vibrato_.setFrequency((norm * (StkFloat) 12.0));
else if (number == __SK_ModWheel_) // 1
vibratoGain_ = (norm * (StkFloat) 0.5);
else if (number == __SK_AfterTouch_Cont_) // 128
envelope_.setValue(norm);
else {
errorString_ << "Clarinet::controlChange: undefined control number (" << number << ")!";
handleError( StkError::WARNING );
}
#if defined(_STK_DEBUG_)
errorString_ << "Clarinet::controlChange: number = " << number << ", value = " << value << '.';
handleError( StkError::DEBUG_WARNING );
if ( Stk::inRange( value, 0.0, 128.0 ) == false ) {
oStream_ << "Clarinet::controlChange: value (" << value << ") is out of range!";
handleError( StkError::WARNING ); return;
}
#endif
StkFloat normalizedValue = value * ONE_OVER_128;
if ( number == __SK_ReedStiffness_ ) // 2
reedTable_.setSlope( -0.44 + ( 0.26 * normalizedValue ) );
else if ( number == __SK_NoiseLevel_ ) // 4
noiseGain_ = ( normalizedValue * 0.4 );
else if ( number == __SK_ModFrequency_ ) // 11
vibrato_.setFrequency( normalizedValue * 12.0 );
else if ( number == __SK_ModWheel_ ) // 1
vibratoGain_ = ( normalizedValue * 0.5 );
else if ( number == __SK_AfterTouch_Cont_ ) // 128
envelope_.setValue( normalizedValue );
#if defined(_STK_DEBUG_)
else {
oStream_ << "Clarinet::controlChange: undefined control number (" << number << ")!";
handleError( StkError::WARNING );
}
#endif
}