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/*
idelay~ - interpolating delay using flext layer
Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
-------------------------------------------------------------------------
This is an example for usage of flext
It's a simple interpolating delay with signal input with allows for glitchless change of delay times
Watch out for Doppler effects!
*/
#include <flext.h>
#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 401)
#error You need at least flext version 0.4.1
#endif
// template class for delay line
#include "delay.h"
class idelay:
public flext_dsp
{
FLEXT_HEADER(idelay,flext_dsp)
public:
idelay(F msec);
~idelay();
DelayLine<S> *dline;
protected:
virtual V m_signal(I n,S *const *in,S *const *out);
};
// make implementation of a tilde object with one float arg
FLEXT_NEW_DSP_1("idelay~",idelay,F)
idelay::idelay(F maxmsec)
{
I nsamps = (I)ceil(maxmsec*Samplerate()*0.001f);
if (nsamps < 1) nsamps = 1;
dline = new DelayLine<F>(nsamps);
AddInSignal("Audio In"); // audio in
AddInSignal("Delay time (ms)"); // delay time
AddOutSignal("Audio Out"); // audio out
}
idelay::~idelay()
{
if(dline) delete dline;
}
V idelay::m_signal(I n,S *const *in,S *const *out)
{
const S *ins = in[0],*del = in[1];
S *outs = out[0];
F msr = Samplerate()*0.001f;
while (n--)
{
dline->Put(*ins++);
*outs++ = dline->Get((*del++)*msr);
}
}
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