From b0546e5e7f7044019892543c6c82029db8d564a7 Mon Sep 17 00:00:00 2001
From: Robert Jonsson <spamatica@gmail.com>
Date: Thu, 15 Sep 2011 12:14:55 +0000
Subject: moved attic to a branch of it's own

---
 .../synti/zynaddsubfx/DSP/FormantFilter.C          | 163 ---------------------
 1 file changed, 163 deletions(-)
 delete mode 100644 attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/FormantFilter.C

(limited to 'attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/FormantFilter.C')

diff --git a/attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/FormantFilter.C b/attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/FormantFilter.C
deleted file mode 100644
index 482cef91..00000000
--- a/attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/FormantFilter.C
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
-  ZynAddSubFX - a software synthesizer
- 
-  FormantFilter.C - formant filters
-  Copyright (C) 2002-2005 Nasca Octavian Paul
-  Author: Nasca Octavian Paul
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of version 2 of the GNU General Public License 
-  as published by the Free Software Foundation.
-
-  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 (version 2) for more details.
-
-  You should have received a copy of the GNU General Public License (version 2)
-  along with this program; if not, write to the Free Software Foundation,
-  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
-
-*/
-
-#include <math.h>
-#include <stdio.h>
-#include "FormantFilter.h"
-
-FormantFilter::FormantFilter(FilterParams *pars){
-    numformants=pars->Pnumformants;
-    for (int i=0;i<numformants;i++) formant[i]=new AnalogFilter(4/*BPF*/,1000.0,10.0,pars->Pstages);
-    cleanup();
-    inbuffer=new REALTYPE [SOUND_BUFFER_SIZE];
-    tmpbuf=new REALTYPE [SOUND_BUFFER_SIZE];
-
-    for (int j=0;j<FF_MAX_VOWELS;j++) 
-	for (int i=0;i<numformants;i++){
-	    formantpar[j][i].freq=pars->getformantfreq(pars->Pvowels[j].formants[i].freq);
-	    formantpar[j][i].amp=pars->getformantamp(pars->Pvowels[j].formants[i].amp);
-	    formantpar[j][i].q=pars->getformantq(pars->Pvowels[j].formants[i].q);
-	};
-    for (int i=0;i<FF_MAX_FORMANTS;i++) oldformantamp[i]=1.0;
-    for (int i=0;i<numformants;i++){
-	currentformants[i].freq=1000.0;
-	currentformants[i].amp=1.0;
-	currentformants[i].q=2.0;
-    };
-
-    formantslowness=pow(1.0-(pars->Pformantslowness/128.0),3.0);
-
-    sequencesize=pars->Psequencesize;if (sequencesize==0) sequencesize=1;
-    for (int k=0;k<sequencesize;k++) sequence[k].nvowel=pars->Psequence[k].nvowel;
-    
-    vowelclearness=pow(10.0,(pars->Pvowelclearness-32.0)/48.0);
-
-    sequencestretch=pow(0.1,(pars->Psequencestretch-32.0)/48.0);
-    if (pars->Psequencereversed) sequencestretch*= -1.0;
-
-    outgain=dB2rap(pars->getgain());
-
-    oldinput=-1.0;
-    Qfactor=1.0;oldQfactor=Qfactor;
-    firsttime=1;
-};
-
-FormantFilter::~FormantFilter(){
-    for (int i=0;i<numformants;i++) delete(formant[i]);
-    delete (inbuffer);
-    delete (tmpbuf);
-};
-
-
-
-
-void FormantFilter::cleanup(){
-    for (int i=0;i<numformants;i++) formant[i]->cleanup();
-};
-
-void FormantFilter::setpos(REALTYPE input){
-    int p1,p2;
-    
-    if (firsttime!=0) slowinput=input;
-	else slowinput=slowinput*(1.0-formantslowness)+input*formantslowness;
-
-    if ((fabs(oldinput-input)<0.001)&&(fabs(slowinput-input)<0.001)&&
-	(fabs(Qfactor-oldQfactor)<0.001)) {
-//	oldinput=input; daca setez asta, o sa faca probleme la schimbari foarte lente
-	firsttime=0;
-	return;
-    } else oldinput=input;
-
-
-    REALTYPE pos=fmod(input*sequencestretch,1.0);if (pos<0.0) pos+=1.0;
-    
-    F2I(pos*sequencesize,p2);
-    p1=p2-1;if (p1<0) p1+=sequencesize;
-
-    pos=fmod(pos*sequencesize,1.0);    
-    if (pos<0.0) pos=0.0; else if (pos>1.0) pos=1.0;
-    pos=(atan((pos*2.0-1.0)*vowelclearness)/atan(vowelclearness)+1.0)*0.5;
-
-    p1=sequence[p1].nvowel;
-    p2=sequence[p2].nvowel;
-    
-    if (firsttime!=0) {
-       for (int i=0;i<numformants;i++){
-	    currentformants[i].freq=formantpar[p1][i].freq*(1.0-pos)+formantpar[p2][i].freq*pos;
-	    currentformants[i].amp=formantpar[p1][i].amp*(1.0-pos)+formantpar[p2][i].amp*pos;
-	    currentformants[i].q=formantpar[p1][i].q*(1.0-pos)+formantpar[p2][i].q*pos;	
-	    formant[i]->setfreq_and_q(currentformants[i].freq,currentformants[i].q*Qfactor);
-	    oldformantamp[i]=currentformants[i].amp;
-	};
-	firsttime=0;
-    } else {
-	for (int i=0;i<numformants;i++){
-	    currentformants[i].freq=currentformants[i].freq*(1.0-formantslowness)
-		+(formantpar[p1][i].freq*(1.0-pos)+formantpar[p2][i].freq*pos)*formantslowness;
-
-	    currentformants[i].amp=currentformants[i].amp*(1.0-formantslowness)
-		+(formantpar[p1][i].amp*(1.0-pos)+formantpar[p2][i].amp*pos)*formantslowness;
-
-	    currentformants[i].q=currentformants[i].q*(1.0-formantslowness)
-		+(formantpar[p1][i].q*(1.0-pos)+formantpar[p2][i].q*pos)*formantslowness;
-
-	    formant[i]->setfreq_and_q(currentformants[i].freq,currentformants[i].q*Qfactor);
-	};
-    };
-    
-    oldQfactor=Qfactor;
-};
-
-void FormantFilter::setfreq(REALTYPE frequency){
-    setpos(frequency);
-};
-
-void FormantFilter::setq(REALTYPE q_){
-    Qfactor=q_;
-    for (int i=0;i<numformants;i++) formant[i]->setq(Qfactor*currentformants[i].q);
-};
-
-void FormantFilter::setfreq_and_q(REALTYPE frequency,REALTYPE q_){    
-    Qfactor=q_;    
-    setpos(frequency);
-};
-
-
-void FormantFilter::filterout(REALTYPE *smp){
-    int i,j;
-    for (i=0;i<SOUND_BUFFER_SIZE;i++) {
-	inbuffer[i]=smp[i];
-	smp[i]=0.0;
-    };
-    
-    for (j=0;j<numformants;j++) {
-        for (i=0;i<SOUND_BUFFER_SIZE;i++) tmpbuf[i]=inbuffer[i]*outgain;
-	formant[j]->filterout(tmpbuf);
-
-	if (ABOVE_AMPLITUDE_THRESHOLD(oldformantamp[j],currentformants[j].amp))
-    	    for (i=0;i<SOUND_BUFFER_SIZE;i++) smp[i]+=tmpbuf[i]*
-		INTERPOLATE_AMPLITUDE(oldformantamp[j],currentformants[j].amp,i,SOUND_BUFFER_SIZE);
-	else for (i=0;i<SOUND_BUFFER_SIZE;i++) smp[i]+=tmpbuf[i]*currentformants[j].amp;
-	oldformantamp[j]=currentformants[j].amp;
-    };
-};
-
-- 
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