mirror of
https://github.com/thestk/stk
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61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/***************************************************/
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/*! \class Echo
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\brief STK echo effect class.
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This class implements an echo effect.
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by Perry R. Cook and Gary P. Scavone, 1995 - 2004.
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*/
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/***************************************************/
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#ifndef STK_ECHO_H
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#define STK_ECHO_H
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#include "Effect.h"
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#include "Delay.h"
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class Echo : public Effect
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{
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public:
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//! Class constructor, taking the longest desired delay length (one second default value).
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/*!
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The default delay value is set to 1/2 the maximum delay length.
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*/
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Echo( unsigned long maximumDelay = (unsigned long) Stk::sampleRate() );
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//! Class destructor.
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~Echo();
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//! Reset and clear all internal state.
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void clear();
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//! Set the maximum delay line length in samples.
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void setMaximumDelay( unsigned long delay );
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//! Set the delay line length in samples.
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void setDelay( unsigned long delay );
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//! Compute one output sample.
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StkFloat tick(StkFloat input);
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//! Take \e vectorSize inputs, compute the same number of outputs and return them in \e vector.
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StkFloat *tick( StkFloat *vector, unsigned int vectorSize );
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//! Take a channel of the StkFrames object as inputs to the effect and replace with corresponding outputs.
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/*!
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The \c channel argument should be one or greater (the first
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channel is specified by 1). An StkError will be thrown if the \c
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channel argument is zero or it is greater than the number of
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channels in the StkFrames object.
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*/
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StkFrames& tick( StkFrames& frames, unsigned int channel = 1 );
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protected:
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Delay delayLine_;
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unsigned long length_;
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};
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#endif
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