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/* Copyright (c) 2003 Tim Blechmann. */
/* For information on usage and redistribution, and for a DISCLAIMER OF ALL */
/* WARRANTIES, see the file, "COPYING" in this distribution. */
/* */
/* */
/* tbsig~ is gives you the sign of an audio signal. should be useful to create */
/* a square oscillator or some noisy sounds */
/* */
/* */
/* tbsig~ uses the flext C++ layer for Max/MSP and PD externals. */
/* get it at http://www.parasitaere-kapazitaeten.de/PD/ext */
/* thanks to Thomas Grill */
/* */
/* */
/* */
/* This program is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version 2 */
/* of the License, or (at your option) any later version. */
/* */
/* See file LICENSE for further informations on licensing terms. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* */
/* Based on PureData by Miller Puckette and others. */
/* */
/* */
/* */
/* coded while listening to: Peter Broetzmann & Hamid Drake: The Dried Rat-Dog */
/* */
/* */
#include <flext.h>
#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 401)
#error upgrade your flext version!!!!!!
#endif
class tbsig: public flext_dsp
{
FLEXT_HEADER(tbsig,flext_dsp);
public: // constructor
tbsig();
protected:
virtual void m_signal (int n, float *const *in, float *const *out);
};
FLEXT_LIB_DSP("tbsig~",tbsig);
tbsig::tbsig()
{
AddInSignal();
AddOutSignal();
}
void tbsig::m_signal(int n, float *const *in, float *const *out)
{
const float *ins=in[0];
float *outs = out[0];
while (n--)
{
if (*ins>0)
*outs = 1;
else
*outs = -1;
*outs++;
*ins++;
}
}
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