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Version 4.4.0

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This commit is contained in:
Gary Scavone
2013-09-29 23:11:39 +02:00
committed by Stephen Sinclair
parent d199342e86
commit eccd8c9981
287 changed files with 11712 additions and 7676 deletions
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49
src/Brass.cpp
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@@ -16,7 +16,7 @@
- Vibrato Gain = 1
- Volume = 128
by Perry R. Cook and Gary P. Scavone, 1995 - 2007.
by Perry R. Cook and Gary P. Scavone, 1995 - 2009.
*/
/***************************************************/
@@ -24,16 +24,18 @@
#include "SKINI.msg"
#include <cmath>
Brass :: Brass(StkFloat lowestFrequency)
namespace stk {
Brass :: Brass( StkFloat lowestFrequency )
{
length_ = (unsigned long) (Stk::sampleRate() / lowestFrequency + 1);
length_ = (unsigned long) ( Stk::sampleRate() / lowestFrequency + 1 );
delayLine_.setMaximumDelay( length_ );
delayLine_.setDelay( 0.5 * length_ );
lipFilter_.setGain( 0.03 );
dcBlock_.setBlockZero();
adsr_.setAllTimes( 0.005, 0.001, 1.0, 0.010);
adsr_.setAllTimes( 0.005, 0.001, 1.0, 0.010 );
vibrato_.setFrequency( 6.137 );
vibratoGain_ = 0.0;
@@ -46,18 +48,18 @@ Brass :: Brass(StkFloat lowestFrequency)
this->setFrequency( 220.0 );
}
Brass :: ~Brass()
Brass :: ~Brass( void )
{
}
void Brass :: clear()
void Brass :: clear( void )
{
delayLine_.clear();
lipFilter_.clear();
dcBlock_.clear();
}
void Brass :: setFrequency(StkFloat frequency)
void Brass :: setFrequency( StkFloat frequency )
{
StkFloat freakency = frequency;
if ( frequency <= 0.0 ) {
@@ -74,7 +76,7 @@ void Brass :: setFrequency(StkFloat frequency)
lipFilter_.setResonance( freakency, 0.997 );
}
void Brass :: setLip(StkFloat frequency)
void Brass :: setLip( StkFloat frequency )
{
StkFloat freakency = frequency;
if ( frequency <= 0.0 ) {
@@ -86,20 +88,20 @@ void Brass :: setLip(StkFloat frequency)
lipFilter_.setResonance( freakency, 0.997 );
}
void Brass :: startBlowing(StkFloat amplitude, StkFloat rate)
void Brass :: startBlowing( StkFloat amplitude, StkFloat rate )
{
adsr_.setAttackRate( rate );
maxPressure_ = amplitude;
adsr_.keyOn();
}
void Brass :: stopBlowing(StkFloat rate)
void Brass :: stopBlowing( StkFloat rate )
{
adsr_.setReleaseRate( rate );
adsr_.keyOff();
}
void Brass :: noteOn(StkFloat frequency, StkFloat amplitude)
void Brass :: noteOn( StkFloat frequency, StkFloat amplitude )
{
this->setFrequency( frequency );
this->startBlowing( amplitude, amplitude * 0.001 );
@@ -110,7 +112,7 @@ void Brass :: noteOn(StkFloat frequency, StkFloat amplitude)
#endif
}
void Brass :: noteOff(StkFloat amplitude)
void Brass :: noteOff( StkFloat amplitude )
{
this->stopBlowing( amplitude * 0.005 );
@@ -120,26 +122,7 @@ void Brass :: noteOff(StkFloat amplitude)
#endif
}
StkFloat Brass :: computeSample()
{
StkFloat breathPressure = maxPressure_ * adsr_.tick();
breathPressure += vibratoGain_ * vibrato_.tick();
StkFloat mouthPressure = 0.3 * breathPressure;
StkFloat borePressure = 0.85 * delayLine_.lastOut();
StkFloat deltaPressure = mouthPressure - borePressure; // Differential pressure.
deltaPressure = lipFilter_.tick( deltaPressure ); // Force - > position.
deltaPressure *= deltaPressure; // Basic position to area mapping.
if ( deltaPressure > 1.0 ) deltaPressure = 1.0; // Non-linear saturation.
// The following input scattering assumes the mouthPressure = area.
lastOutput_ = deltaPressure * mouthPressure + ( 1.0 - deltaPressure) * borePressure;
lastOutput_ = delayLine_.tick( dcBlock_.tick( lastOutput_ ) );
return lastOutput_;
}
void Brass :: controlChange(int number, StkFloat value)
void Brass :: controlChange( int number, StkFloat value )
{
StkFloat norm = value * ONE_OVER_128;
if ( norm < 0 ) {
@@ -175,3 +158,5 @@ void Brass :: controlChange(int number, StkFloat value)
handleError( StkError::DEBUG_WARNING );
#endif
}
} // stk namespace