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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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77
src/PoleZero.cpp
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@@ -2,53 +2,44 @@
/*! \class PoleZero
\brief STK one-pole, one-zero filter class.
This protected Filter subclass implements
a one-pole, one-zero digital filter. A
method is provided for creating an allpass
filter with a given coefficient. Another
method is provided to create a DC blocking filter.
This class implements a one-pole, one-zero digital filter. A
method is provided for creating an allpass filter with a given
coefficient. Another method is provided to create a DC blocking
filter.
by Perry R. Cook and Gary P. Scavone, 1995 - 2007.
by Perry R. Cook and Gary P. Scavone, 1995 - 2009.
*/
/***************************************************/
#include "PoleZero.h"
PoleZero :: PoleZero() : Filter()
namespace stk {
PoleZero :: PoleZero()
{
// Default setting for pass-through.
std::vector<StkFloat> b(2, 0.0);
std::vector<StkFloat> a(2, 0.0);
b[0] = 1.0;
a[0] = 1.0;
Filter::setCoefficients( b, a );
b_.resize( 2, 0.0 );
a_.resize( 2, 0.0 );
b_[0] = 1.0;
a_[0] = 1.0;
inputs_.resize( 2, 1, 0.0 );
outputs_.resize( 2, 1, 0.0 );
}
PoleZero :: ~PoleZero()
{
}
void PoleZero :: clear(void)
{
Filter::clear();
}
void PoleZero :: setB0(StkFloat b0)
void PoleZero :: setCoefficients( StkFloat b0, StkFloat b1, StkFloat a1, bool clearState )
{
b_[0] = b0;
}
void PoleZero :: setB1(StkFloat b1)
{
b_[1] = b1;
}
void PoleZero :: setA1(StkFloat a1)
{
a_[1] = a1;
if ( clearState ) this->clear();
}
void PoleZero :: setAllpass(StkFloat coefficient)
void PoleZero :: setAllpass( StkFloat coefficient )
{
b_[0] = coefficient;
b_[1] = 1.0;
@@ -56,7 +47,7 @@ void PoleZero :: setAllpass(StkFloat coefficient)
a_[1] = coefficient;
}
void PoleZero :: setBlockZero(StkFloat thePole)
void PoleZero :: setBlockZero( StkFloat thePole )
{
b_[0] = 1.0;
b_[1] = -1.0;
@@ -64,32 +55,4 @@ void PoleZero :: setBlockZero(StkFloat thePole)
a_[1] = -thePole;
}
void PoleZero :: setGain(StkFloat gain)
{
Filter::setGain(gain);
}
StkFloat PoleZero :: getGain(void) const
{
return Filter::getGain();
}
StkFloat PoleZero :: lastOut(void) const
{
return Filter::lastOut();
}
StkFloat PoleZero :: tick( StkFloat input )
{
inputs_[0] = gain_ * input;
outputs_[0] = b_[0] * inputs_[0] + b_[1] * inputs_[1] - a_[1] * outputs_[1];
inputs_[1] = inputs_[0];
outputs_[1] = outputs_[0];
return outputs_[0];
}
StkFrames& PoleZero :: tick( StkFrames& frames, unsigned int channel )
{
return Filter::tick( frames, channel );
}
} // stk namespace