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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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36
include/JCRev.h
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@@ -3,6 +3,7 @@
#include "Effect.h"
#include "Delay.h"
#include "OnePole.h"
namespace stk {
@@ -10,14 +11,20 @@ namespace stk {
/*! \class JCRev
\brief John Chowning's reverberator class.
This class takes a monophonic input signal and produces a stereo
output signal. It is derived from the CLM JCRev function, which
is based on the use of networks of simple allpass and comb delay
filters. This class implements three series allpass units,
followed by four parallel comb filters, and two decorrelation
delay lines in parallel at the output.
This class takes a monophonic input signal and
produces a stereo output signal. It is derived
from the CLM JCRev function, which is based on
the use of networks of simple allpass and comb
delay filters. This class implements three
series allpass units, followed by four parallel
comb filters, and two decorrelation delay lines
in parallel at the output.
by Perry R. Cook and Gary P. Scavone, 1995 - 2010.
Although not in the original JC reverberator,
one-pole lowpass filters have been added inside
the feedback comb filters.
by Perry R. Cook and Gary P. Scavone, 1995-2011.
*/
/***************************************************/
@@ -82,6 +89,7 @@ class JCRev : public Effect
Delay allpassDelays_[3];
Delay combDelays_[4];
OnePole combFilters_[4];
Delay outLeftDelay_;
Delay outRightDelay_;
StkFloat allpassCoefficient_;
@@ -93,7 +101,7 @@ inline StkFloat JCRev :: lastOut( unsigned int channel )
{
#if defined(_STK_DEBUG_)
if ( channel > 1 ) {
errorString_ << "JCRev::lastOut(): channel argument must be less than 2!";
oStream_ << "JCRev::lastOut(): channel argument must be less than 2!";
handleError( StkError::FUNCTION_ARGUMENT );
}
#endif
@@ -105,7 +113,7 @@ inline StkFloat JCRev :: tick( StkFloat input, unsigned int channel )
{
#if defined(_STK_DEBUG_)
if ( channel > 1 ) {
errorString_ << "JCRev::tick(): channel argument must be less than 2!";
oStream_ << "JCRev::tick(): channel argument must be less than 2!";
handleError( StkError::FUNCTION_ARGUMENT );
}
#endif
@@ -131,10 +139,10 @@ inline StkFloat JCRev :: tick( StkFloat input, unsigned int channel )
allpassDelays_[2].tick(temp2);
temp2 = -(allpassCoefficient_ * temp2) + temp;
temp3 = temp2 + (combCoefficient_[0] * combDelays_[0].lastOut());
temp4 = temp2 + (combCoefficient_[1] * combDelays_[1].lastOut());
temp5 = temp2 + (combCoefficient_[2] * combDelays_[2].lastOut());
temp6 = temp2 + (combCoefficient_[3] * combDelays_[3].lastOut());
temp3 = temp2 + ( combFilters_[0].tick( combCoefficient_[0] * combDelays_[0].lastOut() ) );
temp4 = temp2 + ( combFilters_[1].tick( combCoefficient_[1] * combDelays_[1].lastOut() ) );
temp5 = temp2 + ( combFilters_[2].tick( combCoefficient_[2] * combDelays_[2].lastOut() ) );
temp6 = temp2 + ( combFilters_[3].tick( combCoefficient_[3] * combDelays_[3].lastOut() ) );
combDelays_[0].tick(temp3);
combDelays_[1].tick(temp4);
@@ -149,7 +157,7 @@ inline StkFloat JCRev :: tick( StkFloat input, unsigned int channel )
lastFrame_[0] += temp;
lastFrame_[1] += temp;
return lastFrame_[channel];
return 0.7 * lastFrame_[channel];
}
} // stk namespace