mirror of
https://github.com/cookiengineer/audacity
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59 lines
1.3 KiB
C++
59 lines
1.3 KiB
C++
/***************************************************/
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/*! \class NRev
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\brief CCRMA's NRev reverberator class.
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This class is derived from the CLM NRev
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function, which is based on the use of
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networks of simple allpass and comb delay
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filters. This particular arrangement consists
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of 6 comb filters in parallel, followed by 3
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allpass filters, a lowpass filter, and another
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allpass in series, followed by two allpass
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filters in parallel with corresponding right
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and left outputs.
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by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
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*/
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/***************************************************/
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#ifndef STK_NREV_H
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#define STK_NREV_H
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#include "Effect.h"
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#include "Delay.h"
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namespace Nyq
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{
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class NRev : public Effect
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{
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public:
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//! Class constructor taking a T60 decay time argument (one second default value).
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NRev( StkFloat T60 = 1.0 );
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//! Class destructor.
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~NRev();
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//! Reset and clear all internal state.
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void clear();
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//! Set the reverberation T60 decay time.
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void setT60( StkFloat T60 );
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protected:
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StkFloat computeSample( StkFloat input );
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Delay allpassDelays_[8];
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Delay combDelays_[6];
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StkFloat allpassCoefficient_;
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StkFloat combCoefficient_[6];
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StkFloat lowpassState_;
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};
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} // namespace Nyq
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#endif
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