From b0546e5e7f7044019892543c6c82029db8d564a7 Mon Sep 17 00:00:00 2001 From: Robert Jonsson Date: Thu, 15 Sep 2011 12:14:55 +0000 Subject: moved attic to a branch of it's own --- .../synti/zynaddsubfx/DSP/AnalogFilter.h | 72 ---------------------- 1 file changed, 72 deletions(-) delete mode 100644 attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/AnalogFilter.h (limited to 'attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/AnalogFilter.h') diff --git a/attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/AnalogFilter.h b/attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/AnalogFilter.h deleted file mode 100644 index 2e9fe68b..00000000 --- a/attic/muse_qt4_evolution/synti/zynaddsubfx/DSP/AnalogFilter.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - ZynAddSubFX - a software synthesizer - - Analog Filter.h - Several analog filters (lowpass, highpass...) - 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 - -*/ - -#ifndef ANALOG_FILTER_H -#define ANALOG_FILTER_H - -#include "../globals.h" -#include "Filter_.h" -class AnalogFilter:public Filter_{ - public: - AnalogFilter(unsigned char Ftype,REALTYPE Ffreq, REALTYPE Fq,unsigned char Fstages); - ~AnalogFilter(); - void filterout(REALTYPE *smp); - void setfreq(REALTYPE frequency); - void setfreq_and_q(REALTYPE frequency,REALTYPE q_); - void setq(REALTYPE q_); - - void settype(int type_); - void setgain(REALTYPE dBgain); - void setstages(int stages_); - void cleanup(); - - REALTYPE H(REALTYPE freq);//Obtains the response for a given frequency - - private: - struct fstage{ - REALTYPE c1,c2; - } x[MAX_FILTER_STAGES+1],y[MAX_FILTER_STAGES+1], - oldx[MAX_FILTER_STAGES+1],oldy[MAX_FILTER_STAGES+1]; - - void singlefilterout(REALTYPE *smp,fstage &x,fstage &y,REALTYPE *c,REALTYPE *d); - void computefiltercoefs(); - int type;//The type of the filter (LPF1,HPF1,LPF2,HPF2...) - int stages;//how many times the filter is applied (0->1,1->2,etc.) - REALTYPE freq;//Frequency given in Hz - REALTYPE q; //Q factor (resonance or Q factor) - REALTYPE gain;//the gain of the filter (if are shelf/peak) filters - - int order;//the order of the filter (number of poles) - - REALTYPE c[3],d[3];//coefficients - - REALTYPE oldc[3],oldd[3];//old coefficients(used only if some filter paremeters changes very fast, and it needs interpolation) - - REALTYPE xd[3],yd[3];//used if the filter is applied more times - int needsinterpolation,firsttime; - int abovenq;//this is 1 if the frequency is above the nyquist - int oldabovenq;//if the last time was above nyquist (used to see if it needs interpolation) -}; - - -#endif - -- cgit v1.2.3