diff options
Diffstat (limited to 'desiredata/extra/sigmund~')
-rw-r--r-- | desiredata/extra/sigmund~/makefile | 4 | ||||
-rw-r--r-- | desiredata/extra/sigmund~/sigmund~-help.pd | 172 | ||||
-rw-r--r-- | desiredata/extra/sigmund~/sigmund~.c | 1333 |
3 files changed, 0 insertions, 1509 deletions
diff --git a/desiredata/extra/sigmund~/makefile b/desiredata/extra/sigmund~/makefile deleted file mode 100644 index 3dc176b3..00000000 --- a/desiredata/extra/sigmund~/makefile +++ /dev/null @@ -1,4 +0,0 @@ -NAME=sigmund~ -CSYM=sigmund_tilde - -include ../makefile diff --git a/desiredata/extra/sigmund~/sigmund~-help.pd b/desiredata/extra/sigmund~/sigmund~-help.pd deleted file mode 100644 index f3556c9c..00000000 --- a/desiredata/extra/sigmund~/sigmund~-help.pd +++ /dev/null @@ -1,172 +0,0 @@ -#N canvas 209 199 580 617 12; -#X text 42 4 sigmund~ - sinusoidal analysis and pitch tracking; -#N canvas 432 117 573 597 using-with-tables 0; -#X obj 29 368 print peak; -#N canvas 0 0 450 300 (subpatch) 0; -#X array insignal 1024 float 2; -#X coords 0 1 1023 -1 200 140 1; -#X restore 83 426 graph; -#X obj 314 513 phasor~; -#X obj 294 429 loadbang; -#X obj 314 461 440; -#X floatatom 313 488 5 0 0 0 - - -; -#X obj 305 544 tabwrite~ insignal; -#X obj 290 516 bng 15 250 50 0 empty empty empty 17 7 0 10 -262144 --1 -1; -#X text 114 11 Using sigmund~ on arrays; -#X text 42 33 If invoked with the "-t" flag (as a creation argument) -\, sigmund~ analyzes waveforms stored in arrays. Instead of an incoming -signal \, feed it "list" messages with the following arguments:; -#X text 37 118 table name (a symbol); -#X text 38 137 number of points; -#X obj 29 342 sigmund~ -t -npeak 10 -maxfreq 5000 peaks; -#X msg 29 316 list insignal 1024 0 44100 0; -#X text 37 158 index of first point; -#X text 39 179 sample rate; -#X text 38 200 debug flag (print debugging info if nonzero); -#X text 23 232 In this mode \, only the "env" \, "pitch" \, and "peaks" -outputs are meaningful.; -#X text 31 294 click here to test:; -#X connect 2 0 6 0; -#X connect 3 0 4 0; -#X connect 4 0 5 0; -#X connect 5 0 2 0; -#X connect 5 0 7 0; -#X connect 7 0 6 0; -#X connect 12 0 0 0; -#X connect 13 0 12 0; -#X restore 330 553 pd using-with-tables; -#X obj 40 512 phasor~; -#X obj 40 425 loadbang; -#X floatatom 40 471 5 0 120 0 - - -; -#X floatatom 39 561 5 0 0 0 - - -; -#X floatatom 245 563 5 0 0 0 - - -; -#X obj 40 490 mtof; -#X obj 40 448 69; -#X text 38 579 pitch; -#X text 222 582 envelope; -#X text 13 28 Sigmund~ analyzes an incoming sound into sinusoidal components -\, which may be reported individually or combined to form a pitch estimate. -Possible outputs are specified as creation arguments:; -#X text 55 129 env - output pitches at the beginning of notes; -#X text 56 95 pitch - output pitch continuously; -#N canvas 518 74 588 728 setting-parameters 0; -#X msg 182 66 print; -#X floatatom 192 92 5 0 0 0 - - -; -#X msg 192 113 minpower \$1; -#X obj 182 139 sigmund~ -minpower 40; -#X text 39 14 You can set parameters either by creation arguments \, -or else using messages. The "print" message gives you the current values -of all the parameters:; -#X text 28 169 npts: number of points used in an analysis. Must be -a power of two \, at least 128 The minimum frequency that can be tracked -is about 2(sample_rate)/npts.; -#X text 26 219 hop: number of points between analyses. Must be a power -of two \, at least the DSP vector size (usually 64). This regulates -the number of analyses done per unit of time.; -#X text 28 271 npeak: maximum number of sinusoidal peaks to look for. -The computation time is quadratic in the number of peaks actually found -(this number only sets an upper limit). Use it to balance CPU time -with quality of results.; -#X text 30 336 maxfreq: maximum frequency of sinusoidal peaks to look -for. This can be useful in situations where background noise creates -high-frequency \, spurious peaks..; -#X text 37 388 vibrato: maximum deviation from "pitch" to accept as -normal vibrato (affects "notes" output only). If the value is too small. -vibratos will appear as trills. If too large \, very small melodic -intervals may not be reported as new notes.; -#X text 33 457 stabletime: time period to wait before reporting a note -(affects "notes" output only). The "pitch" must be present and must -not vary more than "vibrato" for this entire period to report a note. -If too large \, the "notes" will be unnecessarily delayed. If too small -\, spurious notes get output.; -#X text 31 551 minpower: minimum measured RMS level to report a pitch -(affects "pitch" and "notes" output only). Signals quieter than this -will be assumed to be crosstalk and ignored.; -#X text 32 602 growth: minimum measured RMS growth to report a new -note (affects "notes" output only). The RMS level must rise by this -many dB (within a time period given by "stabletime") to report a repetition -of a note at or near the previously output pitch.; -#X connect 0 0 3 0; -#X connect 1 0 2 0; -#X connect 2 0 3 0; -#X restore 330 531 pd setting-parameters; -#N canvas 190 230 640 535 sinusoid-tracking 0; -#X obj 124 267 sigmund~ -npeak 10 peaks; -#X obj 124 214 phasor~; -#X obj 124 144 loadbang; -#X floatatom 124 190 5 0 120 0 - - -; -#X obj 124 295 route 0 1 2 3 4 5 6 7 8 9; -#X obj 82 339 unpack 0 0 0 0; -#X floatatom 82 461 5 0 0 0 - - -; -#X floatatom 122 431 5 0 0 0 - - -; -#X floatatom 162 406 5 0 0 0 - - -; -#X obj 124 167 440; -#X floatatom 203 380 5 0 0 0 - - -; -#X obj 322 349 unpack 0 0 0 0; -#X floatatom 322 471 5 0 0 0 - - -; -#X floatatom 362 441 5 0 0 0 - - -; -#X floatatom 402 416 5 0 0 0 - - -; -#X floatatom 443 390 5 0 0 0 - - -; -#X text 385 475 frequency (Hz.); -#X text 419 442 peak amplitude (linear); -#X text 464 416 cosine component; -#X text 499 390 sine component; -#X text 42 26 You can ask for sinusoidal peaks in decreasing order -of amplitude or arranged into maximally continuous tracks for resynthesis. -(Or you can ask for both.) In any case \, out come lists of five numbers -\, one for each sinusoid at each analysis period. The first is the -number of the sinusoid (so you can use "route" to claw them apart). -The other four are as shown:; -#X text 79 505 loudest partial; -#X text 332 508 quietest partial; -#X connect 0 0 4 0; -#X connect 1 0 0 0; -#X connect 2 0 9 0; -#X connect 3 0 1 0; -#X connect 4 0 5 0; -#X connect 4 9 11 0; -#X connect 5 0 6 0; -#X connect 5 1 7 0; -#X connect 5 2 8 0; -#X connect 5 3 10 0; -#X connect 9 0 3 0; -#X connect 11 0 12 0; -#X connect 11 1 13 0; -#X connect 11 2 14 0; -#X connect 11 3 15 0; -#X restore 330 508 pd sinusoid-tracking; -#X text 52 165 tracks - output sinusoidal peaks organized into tracks -; -#X text 56 111 notes - output pitch at the beginning of notes; -#X text 339 485 more details:; -#X text 10 184 Parameters you may set (in creation arguments or messages): -; -#X text 60 207 npts - number of points in each analysis window (1024) -; -#X text 60 225 hop - number of points between each analysis (512); -#X text 60 242 npeak - number of sinusoidal peaks (20); -#X text 61 279 vibrato - depth of vibrato to expect in 1/2-tones (1) -; -#X text 60 298 stabletime - time (msec) to wait to report notes (50) -; -#X obj 39 535 sigmund~ -hop 4096 pitch env; -#X text 62 316 minpower - minimum power (dB) to report a pitch (50) -; -#X text 62 335 growth - growth (dB) to report a new note (7); -#X text 54 147 peaks - output all sinusoidal peaks in order of amplitude -; -#X text 380 596 updated for Pd v0.40; -#X text 11 356 The npts and hop parameters are in samples \, and are -powers of two. The example below specifies a huge hop of 4096 (to slow -the output down) and to output "pitch" and "env". (Those are the default -outputs.); -#X text 61 260 maxfreq - maximum sinusoid frequency in Hz. (1000000) -; -#X connect 2 0 25 0; -#X connect 3 0 8 0; -#X connect 4 0 7 0; -#X connect 7 0 2 0; -#X connect 8 0 4 0; -#X connect 25 0 5 0; -#X connect 25 1 6 0; diff --git a/desiredata/extra/sigmund~/sigmund~.c b/desiredata/extra/sigmund~/sigmund~.c deleted file mode 100644 index 96d15a2c..00000000 --- a/desiredata/extra/sigmund~/sigmund~.c +++ /dev/null @@ -1,1333 +0,0 @@ -/* Copyright (c) 2005 Miller Puckette. BSD licensed. No warranties. */ - -/* - fix parameter settings - not to report pitch if evidence too scanty? - note-on detection triggered by falling envelope (a posteriori) - reentrancy bug setting loud flag (other parameters too?) - tweaked freqs still not stable enough - implement block ("-b") mode -*/ - -#include "m_pd.h" -#include <math.h> -#include <stdio.h> -#include <string.h> -#ifdef MSW -#include <malloc.h> -#else -#include <alloca.h> -#endif -#include <stdlib.h> -#ifdef NT -#pragma warning( disable : 4244 ) -#pragma warning( disable : 4305 ) -#endif - -typedef struct peak -{ - float p_freq; - float p_amp; - float p_ampreal; - float p_ampimag; - float p_pit; - float p_db; - float p_salience; - float p_tmp; -} t_peak; - -/********************** service routines **************************/ - -static int sigmund_ilog2(int n) -{ - int ret = -1; - while (n) - { - n >>= 1; - ret++; - } - return (ret); -} - -/* parameters for von Hann window (change these to get Hamming if desired) */ -#define W_ALPHA 0.5 -#define W_BETA 0.5 -#define NEGBINS 4 /* number of bins of negative frequency we'll need */ - -#define PI 3.14159265 -#define LOG2 0.69314718 -#define LOG10 2.30258509 - -static float sinx(float theta, float sintheta) -{ - if (theta > -0.003 && theta < 0.003) - return (1); - else return (sintheta/theta); -} - -static float window_hann_mag(float pidetune, float sinpidetune) -{ - return (W_ALPHA * sinx(pidetune, sinpidetune) - - 0.5 * W_BETA * - (sinx(pidetune+PI, sinpidetune) + sinx(pidetune-PI, sinpidetune))); -} - -static float window_mag(float pidetune, float cospidetune) -{ - return (sinx(pidetune + (PI/2), cospidetune) - + sinx(pidetune - (PI/2), -cospidetune)); -} - -/*********** Routines to analyze a window into sinusoidal peaks *************/ - -static int sigmund_cmp_freq(const void *p1, const void *p2) -{ - if ((*(t_peak **)p1)->p_freq > (*(t_peak **)p2)->p_freq) - return (1); - else if ((*(t_peak **)p1)->p_freq < (*(t_peak **)p2)->p_freq) - return (-1); - else return (0); -} - -static void sigmund_tweak(int npts, float *ftreal, float *ftimag, - int npeak, t_peak *peaks, float fperbin, int loud) -{ - t_peak **peakptrs = (t_peak **)alloca(sizeof (*peakptrs) * (npeak+1)); - t_peak negpeak; - int peaki, j, k; - float ampreal[3], ampimag[3]; - float binperf = 1./fperbin; - float phaseperbin = (npts-0.5)/npts, oneovern = 1./npts; - if (npeak < 1) - return; - for (peaki = 0; peaki < npeak; peaki++) - peakptrs[peaki+1] = &peaks[peaki]; - qsort(peakptrs+1, npeak, sizeof (*peakptrs), sigmund_cmp_freq); - peakptrs[0] = &negpeak; - negpeak.p_ampreal = peakptrs[1]->p_ampreal; - negpeak.p_ampimag = -peakptrs[1]->p_ampimag; - negpeak.p_freq = -peakptrs[1]->p_freq; - for (peaki = 1; peaki <= npeak; peaki++) - { - int cbin = peakptrs[peaki]->p_freq*binperf + 0.5; - int nsub = (peaki == npeak ? 1:2); - float windreal, windimag, windpower, detune, pidetune, sinpidetune, - cospidetune, ampcorrect, ampout, ampoutreal, ampoutimag, freqout; - /* post("3 nsub %d amp %f freq %f", nsub, - peakptrs[peaki]->p_amp, peakptrs[peaki]->p_freq); */ - if (cbin < 0 || cbin > 2*npts - 3) - continue; - for (j = 0; j < 3; j++) - ampreal[j] = ftreal[cbin+2*j-2], ampimag[j] = ftimag[cbin+2*j-2]; - /* post("a %f %f", ampreal[1], ampimag[1]); */ - for (j = 0; j < nsub; j++) - { - t_peak *neighbor = peakptrs[(peaki-1) + 2*j]; - float neighborreal = npts * neighbor->p_ampreal; - float neighborimag = npts * neighbor->p_ampimag; - for (k = 0; k < 3; k++) - { - float freqdiff = (0.5*PI) * ((cbin + 2*k-2) - -binperf * neighbor->p_freq); - float sx = sinx(freqdiff, sin(freqdiff)); - float phasere = cos(freqdiff * phaseperbin); - float phaseim = sin(freqdiff * phaseperbin); - ampreal[k] -= - sx * (phasere * neighborreal - phaseim * neighborimag); - ampimag[k] -= - sx * (phaseim * neighborreal + phasere * neighborimag); - } - /* post("b %f %f", ampreal[1], ampimag[1]); */ - } - - windreal = W_ALPHA * ampreal[1] - - (0.5 * W_BETA) * (ampreal[0] + ampreal[2]); - windimag = W_ALPHA * ampimag[1] - - (0.5 * W_BETA) * (ampimag[0] + ampimag[2]); - windpower = windreal * windreal + windimag * windimag; - detune = ( - W_BETA*(ampreal[0] - ampreal[2]) * - (2.0*W_ALPHA * ampreal[1] - W_BETA * (ampreal[0] + ampreal[2])) - + - W_BETA*(ampimag[0] - ampimag[2]) * - (2.0*W_ALPHA * ampimag[1] - W_BETA * (ampimag[0] + ampimag[2])) - ) / (4.0 * windpower); - if (detune > 0.5) - detune = 0.5; - else if (detune < -0.5) - detune = -0.5; - /* if (loud > 0) - post("tweak: windpower %f, bin %d, detune %f", - windpower, cbin, detune); */ - pidetune = PI * detune; - sinpidetune = sin(pidetune); - cospidetune = cos(pidetune); - - ampcorrect = 1.0 / window_hann_mag(pidetune, sinpidetune); - - ampout = oneovern * ampcorrect *sqrt(windpower); - ampoutreal = oneovern * ampcorrect * - (windreal * cospidetune - windimag * sinpidetune); - ampoutimag = oneovern * ampcorrect * - (windreal * sinpidetune + windimag * cospidetune); - freqout = (cbin + 2*detune) * fperbin; - if (loud > 1) - post("amp %f, freq %f", ampout, freqout); - - peakptrs[peaki]->p_freq = freqout; - peakptrs[peaki]->p_amp = ampout; - peakptrs[peaki]->p_ampreal = ampoutreal; - peakptrs[peaki]->p_ampimag = ampoutimag; - } -} - - -static void sigmund_getrawpeaks(int npts, float *insamps, - int npeak, t_peak *peakv, int *nfound, float *power, float srate, int loud, - float param1, float param2, float param3, float hifreq) -{ - float oneovern = 1.0/ (float)npts; - float fperbin = 0.5 * srate * oneovern; - int npts2 = 2*npts, i, bin; - int count, peakcount = 0; - float *fp1, *fp2; - float *rawpow, *rawreal, *rawimag, *maskbuf; - float *bigbuf = alloca(sizeof (float ) * (2*NEGBINS + 5*npts)); - int maxbin = hifreq/fperbin; - int altwind = (param3 == 1); - int tweak = (param3 == 0); - if (maxbin > npts - NEGBINS) - maxbin = npts - NEGBINS; - if (loud) post("tweak %d", tweak); - maskbuf = bigbuf + npts2; - rawreal = maskbuf + npts+NEGBINS; - rawimag = rawreal+npts+NEGBINS; - for (i = 0; i < npts; i++) - maskbuf[i] = 0; - - for (i = 0; i < npts; i++) - bigbuf[i] = insamps[i]; - for (i = npts; i < 2*npts; i++) - bigbuf[i] = 0; - mayer_realfft(npts2, bigbuf); - for (i = 0; i < npts; i++) - rawreal[i] = bigbuf[i]; - for (i = 1; i < npts-1; i++) - rawimag[i] = bigbuf[npts2-i]; - if (loud && npts == 1024) - { - float bigbuf2[2048]; - for (i = 0; i < 1024; i++) - bigbuf2[i] = insamps[i]; - for (i = 1024; i < 2048; i++) - bigbuf2[i] = 0; - mayer_realfft(2048, bigbuf2); - for (i = 1; i < 10; i++) - post("(%10.2f, %10.2f) -> (%10.2f, %10.2f)", - bigbuf2[i], bigbuf2[2048-i], rawreal[i], rawimag[i]); - } - - rawreal[-1] = rawreal[1]; - rawreal[-2] = rawreal[2]; - rawreal[-3] = rawreal[3]; - rawreal[-4] = rawreal[4]; - rawimag[0] = rawimag[npts-1] = 0; - rawimag[-1] = -rawimag[1]; - rawimag[-2] = -rawimag[2]; - rawimag[-3] = -rawimag[3]; - rawimag[-4] = -rawimag[4]; - - for (peakcount = 0; peakcount < npeak; peakcount++) - { - float pow1, maxpower = 0, totalpower = 0, windreal, windimag, windpower, - detune, pidetune, sinpidetune, cospidetune, ampcorrect, ampout, - ampoutreal, ampoutimag, freqout, freqcount1, freqcount2, powmask; - int bestindex = -1; - for (bin = 2, fp1 = rawreal+2, fp2 = rawimag+2; - bin < maxbin; bin++, fp1++, fp2++) - { - float x1, x2, a1, a2, b1, b2, thresh; - if (altwind) - { - x1 = fp1[0] - 0.5*(fp1[-2] +fp1[2]); - x2 = fp2[0] - 0.5*(fp2[-2] +fp2[2]); - a1 = fp1[4] - 0.5*(fp1[2] +fp1[6]); - a2 = fp2[2] - 0.5*(fp2[2] +fp2[6]); - b1 = fp1[-4] - 0.5*(fp1[-2] +fp1[-6]); - b2 = fp2[-4] - 0.5*(fp2[-2] +fp2[-6]); - thresh = param2 * (a1*a1+a2*a2+b1*b1+b2*b2); - } - else - { - x1 = fp1[1] - fp1[-1]; - x2 = fp2[1] - fp2[-1]; - a1 = fp1[3] - fp1[1]; - a2 = fp2[3] - fp2[1]; - b1 = fp1[-1] - fp1[-3]; - b2 = fp2[-1] - fp2[-3]; - thresh = param2 * (a1*a1+a2*a2+b1*b1+b2*b2); - } - pow1 = x1*x1+x2*x2; - if (pow1 > maxpower && pow1 > maskbuf[bin]) - { - if (pow1 > thresh) - maxpower = pow1, bestindex = bin; - } - totalpower += pow1; - } - if (totalpower <= 0 || maxpower < 1e-10*totalpower || bestindex < 0) - break; - fp1 = rawreal+bestindex; - fp2 = rawimag+bestindex; - *power = 0.5 * totalpower *oneovern * oneovern; - powmask = maxpower * exp(-param1 * log(10.) / 10.); - if (loud > 2) - post("maxpower %f, powmask %f, param1 %f", - maxpower, powmask, param1); - for (bin = 2; bin < maxbin; bin++) - { - float bindiff = bin - bestindex; - float mymask = - powmask/ (1. + bindiff * bindiff * bindiff * bindiff); - if (bindiff < 2 && bindiff > -2) - mymask = 2*maxpower; - if (mymask > maskbuf[bin]) - maskbuf[bin] = mymask; - } - - if (loud > 1) - post("best index %d, total power %f", bestindex, totalpower); - if (altwind) - { - windreal = W_ALPHA * fp1[0] - (0.5 * W_BETA) * (fp1[2] + fp1[-2]); - windimag = W_ALPHA * fp2[0] - (0.5 * W_BETA) * (fp2[2] + fp2[-2]); - windpower = windreal * windreal + windimag * windimag; - detune = ( - (W_BETA*(rawreal[bestindex-2] - rawreal[bestindex+2])) * - (2.0 * W_ALPHA * rawreal[bestindex] - - W_BETA * (rawreal[bestindex-2] + rawreal[bestindex+2])) - + - (W_BETA*(rawimag[bestindex-2] - rawimag[bestindex+2])) * - (2.0 * W_ALPHA * rawimag[bestindex] - - W_BETA * (rawimag[bestindex-2] + rawimag[bestindex+2])) - ) / (4.0 * windpower); - } - else - { - windreal = fp1[1] - fp1[-1]; - windimag = fp2[1] - fp2[-1]; - windpower = windreal * windreal + windimag * windimag; - detune = ((fp1[1] * fp1[1] - fp1[-1]*fp1[-1]) - + (fp2[1] * fp2[1] - fp2[-1]*fp2[-1])) / (2 * windpower); - if (loud > 2) post("(-1) %f %f; (1) %f %f", - fp1[-1], fp2[-1], fp1[1], fp2[1]); - if (loud > 2) post("peak %f %f", - fp1[0], fp2[0]); - } - if (detune > 0.5) - detune = 0.5; - else if (detune < -0.5) - detune = -0.5; - if (loud > 1) - post("windpower %f, index %d, detune %f", - windpower, bestindex, detune); - pidetune = PI * detune; - sinpidetune = sin(pidetune); - cospidetune = cos(pidetune); - if (altwind) - ampcorrect = 1.0 / window_hann_mag(pidetune, sinpidetune); - else ampcorrect = 1.0 / window_mag(pidetune, cospidetune); - - ampout = ampcorrect *sqrt(windpower); - ampoutreal = ampcorrect * - (windreal * cospidetune - windimag * sinpidetune); - ampoutimag = ampcorrect * - (windreal * sinpidetune + windimag * cospidetune); - - /* the frequency is the sum of the bin frequency and detuning */ - - peakv[peakcount].p_freq = (freqout = (bestindex + 2*detune)) * fperbin; - peakv[peakcount].p_amp = oneovern * ampout; - peakv[peakcount].p_ampreal = oneovern * ampoutreal; - peakv[peakcount].p_ampimag = oneovern * ampoutimag; - } - if (tweak) - { - sigmund_tweak(npts, rawreal, rawimag, peakcount, peakv, fperbin, loud); - sigmund_tweak(npts, rawreal, rawimag, peakcount, peakv, fperbin, loud); - } - for (i = 0; i < peakcount; i++) - { - peakv[i].p_pit = ftom(peakv[i].p_freq); - peakv[i].p_db = powtodb(peakv[i].p_amp); - } - *nfound = peakcount; -} - -/*************** Routines for finding fundamental pitch *************/ - -#define PITCHNPEAK 12 -#define PITCHUNCERTAINTY 0.3 -#define HALFTONEINC 0.059 -#define SUBHARMONICS 16 -#define DBPERHALFTONE 0.5 - -static void sigmund_getpitch(int npeak, t_peak *peakv, float *freqp, - float npts, float srate, int loud) -{ - float fperbin = 0.5 * srate / npts; - int npit = 48 * sigmund_ilog2(npts), i, j, k, nsalient; - float bestbin, bestweight, sumamp, sumweight, sumfreq, sumallamp, - freq; - float *weights = (float *)alloca(sizeof(float) * npit); - t_peak *bigpeaks[PITCHNPEAK]; - int nbigpeaks; - if (npeak < 1) - { - freq = 0; - goto done; - } - for (i = 0; i < npit; i++) - weights[i] = 0; - for (i = 0; i < npeak; i++) - { - peakv[i].p_tmp = 0; - peakv[i].p_salience = peakv[i].p_db - DBPERHALFTONE * peakv[i].p_pit; - } - for (nsalient = 0; nsalient < PITCHNPEAK; nsalient++) - { - t_peak *bestpeak = 0; - float bestsalience = -1e20; - for (j = 0; j < npeak; j++) - if (peakv[j].p_tmp == 0 && peakv[j].p_salience > bestsalience) - { - bestsalience = peakv[j].p_salience; - bestpeak = &peakv[j]; - } - if (!bestpeak) - break; - bigpeaks[nsalient] = bestpeak; - bestpeak->p_tmp = 1; - /* post("peak f=%f a=%f", bestpeak->p_freq, bestpeak->p_amp); */ - } - sumweight = 0; - for (i = 0; i < nsalient; i++) - { - t_peak *thispeak = bigpeaks[i]; - float pitchuncertainty = - 4 * PITCHUNCERTAINTY * fperbin / (HALFTONEINC * thispeak->p_freq); - float weightindex = (48./LOG2) * - log(thispeak->p_freq/(2.*fperbin)); - float loudness = sqrt(thispeak->p_amp); - /* post("index %f, uncertainty %f", weightindex, pitchuncertainty); */ - for (j = 0; j < SUBHARMONICS; j++) - { - float subindex = weightindex - - (48./LOG2) * log(j + 1.); - int loindex = subindex - pitchuncertainty; - int hiindex = subindex + pitchuncertainty + 1; - if (hiindex < 0) - break; - if (hiindex >= npit) - continue; - if (loindex < 0) - loindex = 0; - for (k = loindex; k <= hiindex; k++) - weights[k] += loudness * 4. / (4. + j); - } - sumweight += loudness; - } -#if 0 - for (i = 0; i < npit; i++) - { - postfloat(weights[i]); - if (!((i+1)%12)) post(""); - } -#endif - bestbin = -1; - bestweight = -1e20; - for (i = 0; i < npit; i++) - if (weights[i] > bestweight) - bestweight = weights[i], bestbin = i; - if (bestweight < sumweight * 0.4) - bestbin = -1; - - if (bestbin < 0) - { - freq = 0; - goto done; - } - for (i = bestbin+1; i < npit; i++) - { - if (weights[i] < bestweight) - break; - bestbin += 0.5; - } - freq = 2*fperbin * exp((LOG2/48.)*bestbin); - - for (sumamp = sumweight = sumfreq = 0, i = 0; i < nsalient; i++) - { - t_peak *thispeak = bigpeaks[i]; - float thisloudness = sqrt(thispeak->p_amp); - float thisfreq = thispeak->p_freq; - float harmonic = thisfreq/freq; - float intpart = (int)(0.5 + harmonic); - float inharm = freq * (harmonic - intpart); - if (harmonic < 1) - continue; - if (inharm < 0.25*fperbin && inharm > -0.25*fperbin) - { - float weight = thisloudness * intpart; - sumweight += weight; - sumfreq += weight*thisfreq/intpart; - } - } - if (sumweight > 0) - freq = sumfreq / sumweight; -done: - if (!(freq >= 0 || freq <= 0)) - { - post("freq nan cancelled"); - freq = 0; - } - *freqp = freq; -} - -/*************** gather peak lists into sinusoidal tracks *************/ - -static void sigmund_peaktrack(int ninpeak, t_peak *inpeakv, - int noutpeak, t_peak *outpeakv, int loud) -{ - int incnt, outcnt; - for (outcnt = 0; outcnt < noutpeak; outcnt++) - outpeakv[outcnt].p_tmp = -1; - - /* first pass. Match each "in" peak with the closest previous - "out" peak, but no two to the same one. */ - for (incnt = 0; incnt < ninpeak; incnt++) - { - float besterror = 1e20; - int bestcnt = -1; - inpeakv[incnt].p_tmp = -1; - for (outcnt = 0; outcnt < noutpeak; outcnt++) - { - float thiserror = - inpeakv[incnt].p_freq - outpeakv[outcnt].p_freq; - if (thiserror < 0) - thiserror = -thiserror; - if (thiserror < besterror) - { - besterror = thiserror; - bestcnt = outcnt; - } - } - if (outpeakv[bestcnt].p_tmp < 0) - { - outpeakv[bestcnt] = inpeakv[incnt]; - inpeakv[incnt].p_tmp = 0; - outpeakv[bestcnt].p_tmp = 0; - } - } - /* second pass. Unmatched "in" peaks assigned to free "out" - peaks */ - for (incnt = 0; incnt < ninpeak; incnt++) - if (inpeakv[incnt].p_tmp < 0) - { - for (outcnt = 0; outcnt < noutpeak; outcnt++) - if (outpeakv[outcnt].p_tmp < 0) - { - outpeakv[outcnt] = inpeakv[incnt]; - inpeakv[incnt].p_tmp = 0; - outpeakv[outcnt].p_tmp = 1; - break; - } - } - for (outcnt = 0; outcnt < noutpeak; outcnt++) - if (outpeakv[outcnt].p_tmp == -1) - outpeakv[outcnt].p_amp = 0; -} - -/**************** parse continuous pitch into note starts ***************/ - -#define NHISTPOINT 100 - -typedef struct _histpoint -{ - float h_freq; - float h_power; -} t_histpoint; - -typedef struct _notefinder -{ - float n_age; - float n_hifreq; - float n_lofreq; - int n_peaked; - t_histpoint n_hist[NHISTPOINT]; - int n_histphase; -} t_notefinder; - - -static void notefinder_init(t_notefinder *x) -{ - int i; - x->n_peaked = x->n_age = 0; - x->n_hifreq = x->n_lofreq = 0; - x->n_histphase = 0; - for (i = 0; i < NHISTPOINT; i++) - x->n_hist[i].h_freq =x->n_hist[i].h_power = 0; -} - -static void notefinder_doit(t_notefinder *x, float freq, float power, - float *note, float vibrato, int stableperiod, float powerthresh, - float growththresh, int loud) -{ - /* calculate frequency ratio between allowable vibrato extremes - (equal to twice the vibrato deviation from center) */ - float vibmultiple = exp((2*LOG2/12) * vibrato); - int oldhistphase, i, k; - if (stableperiod > NHISTPOINT - 1) - stableperiod = NHISTPOINT - 1; - if (++x->n_histphase == NHISTPOINT) - x->n_histphase = 0; - x->n_hist[x->n_histphase].h_freq = freq; - x->n_hist[x->n_histphase].h_power = power; - x->n_age++; - *note = 0; - if (loud) - { - post("stable %d, age %d, vibmultiple %f, powerthresh %f, hifreq %f", - stableperiod, (int)x->n_age ,vibmultiple, powerthresh, x->n_hifreq); - post("histfreq %f %f %f %f", - x->n_hist[x->n_histphase].h_freq, - x->n_hist[(x->n_histphase+NHISTPOINT-1)%NHISTPOINT].h_freq, - x->n_hist[(x->n_histphase+NHISTPOINT-2)%NHISTPOINT].h_freq, - x->n_hist[(x->n_histphase+NHISTPOINT-3)%NHISTPOINT].h_freq); - post("power %f %f %f %f", - x->n_hist[x->n_histphase].h_power, - x->n_hist[(x->n_histphase+NHISTPOINT-1)%NHISTPOINT].h_power, - x->n_hist[(x->n_histphase+NHISTPOINT-2)%NHISTPOINT].h_power, - x->n_hist[(x->n_histphase+NHISTPOINT-3)%NHISTPOINT].h_power); - for (i = 0, k = x->n_histphase; i < stableperiod; i++) - { - post("pit %5.1f pow %f", ftom(x->n_hist[k].h_freq), - x->n_hist[k].h_power); - if (--k < 0) - k = NHISTPOINT - 1; - } - } - /* look for shorter notes than "stableperiod" in length. - The amplitude must rise and then fall while the pitch holds - steady. */ - if (x->n_hifreq <= 0 && x->n_age > stableperiod) - { - float maxpow = 0, freqatmaxpow = 0, - localhifreq = -1e20, locallofreq = 1e20; - int startphase = x->n_histphase - stableperiod + 1; - if (startphase < 0) - startphase += NHISTPOINT; - for (i = 0, k = startphase; i < stableperiod; i++) - { - if (x->n_hist[k].h_freq <= 0) - break; - if (x->n_hist[k].h_power > maxpow) - maxpow = x->n_hist[k].h_power, - freqatmaxpow = x->n_hist[k].h_freq; - if (x->n_hist[k].h_freq > localhifreq) - localhifreq = x->n_hist[k].h_freq; - if (x->n_hist[k].h_freq < locallofreq) - locallofreq = x->n_hist[k].h_freq; - if (localhifreq > locallofreq * vibmultiple) - break; - if (maxpow > power * growththresh && - maxpow > x->n_hist[startphase].h_power * growththresh && - localhifreq < vibmultiple * locallofreq - && freqatmaxpow > 0 && maxpow > powerthresh) - { - x->n_hifreq = x->n_lofreq = *note = freqatmaxpow; - x->n_age = 0; - x->n_peaked = 0; - /* post("got short note"); */ - return; - } - if (++k >= NHISTPOINT) - k = 0; - } - - } - if (x->n_hifreq > 0) - { - /* test if we're within "vibrato" range, and if so update range */ - if (freq * vibmultiple >= x->n_hifreq && - x->n_lofreq * vibmultiple >= freq) - { - if (freq > x->n_hifreq) - x->n_hifreq = freq; - if (freq < x->n_lofreq) - x->n_lofreq = freq; - } - else if (x->n_hifreq > 0 && x->n_age > stableperiod) - { - /* if we've been out of range at least 1/2 the - last "stableperiod" analyses, clear the note */ - int nbad = 0; - for (i = 0, k = x->n_histphase; i < stableperiod - 1; i++) - { - if (--k < 0) - k = NHISTPOINT - 1; - if (x->n_hist[k].h_freq * vibmultiple <= x->n_hifreq || - x->n_lofreq * vibmultiple <= x->n_hist[k].h_freq) - nbad++; - } - if (2 * nbad >= stableperiod) - { - x->n_hifreq = x->n_lofreq = 0; - x->n_age = 0; - } - } - } - - oldhistphase = x->n_histphase - stableperiod; - if (oldhistphase < 0) - oldhistphase += NHISTPOINT; - - /* look for envelope attacks */ - - if (x->n_hifreq > 0 && x->n_peaked) - { - if (freq > 0 && power > powerthresh && - power > x->n_hist[oldhistphase].h_power * - exp((LOG10*0.1)*growththresh)) - { - /* clear it and fall through for new stable-note test */ - x->n_peaked = 0; - x->n_hifreq = x->n_lofreq = 0; - x->n_age = 0; - } - } - else if (!x->n_peaked) - { - if (x->n_hist[oldhistphase].h_power > powerthresh && - x->n_hist[oldhistphase].h_power > power) - x->n_peaked = 1; - } - - /* test for a new note using a stability criterion. */ - - if (freq >= 0 && - (x->n_hifreq <= 0 || freq > x->n_hifreq || freq < x->n_lofreq)) - { - float testfhi, testflo, maxpow = 0; - for (i = 0, k = x->n_histphase, testfhi = testflo = freq; - i < stableperiod-1; i++) - { - if (--k < 0) - k = NHISTPOINT - 1; - if (x->n_hist[k].h_freq > testfhi) - testfhi = x->n_hist[k].h_freq; - if (x->n_hist[k].h_freq < testflo) - testflo = x->n_hist[k].h_freq; - if (x->n_hist[k].h_power > maxpow) - maxpow = x->n_hist[k].h_power; - } - if (testflo > 0 && testfhi <= vibmultiple * testflo - && maxpow > powerthresh) - { - /* report new note */ - float sumf = 0, sumw = 0, thisf, thisw; - for (i = 0, k = x->n_histphase; i < stableperiod; i++) - { - thisw = x->n_hist[k].h_power; - sumw += thisw; - sumf += thisw*x->n_hist[k].h_freq; - if (--k < 0) - k = NHISTPOINT - 1; - } - x->n_hifreq = x->n_lofreq = *note = (sumw > 0 ? sumf/sumw : 0); -#if 0 - /* debugging printout */ - for (i = 0; i < stableperiod; i++) - { - int k3 = x->n_histphase - i; - if (k3 < 0) - k3 += NHISTPOINT; - startpost("%5.1f ", ftom(x->n_hist[k3].h_freq)); - } - post(""); -#endif - x->n_age = 0; - x->n_peaked = 0; - return; - } - } - *note = 0; - return; -} - -/*************************** Glue for Pd ************************/ - -static t_class *sigmund_class; -#define NHIST 100 - -#define MODE_STREAM 1 -#define MODE_BLOCK 2 /* uninplemented */ -#define MODE_TABLE 3 - -#define NPOINTS_DEF 1024 -#define NPOINTS_MIN 128 - -#define HOP_DEF 512 -#define NPEAK_DEF 20 - -#define VIBRATO_DEF 1 -#define STABLETIME_DEF 50 -#define MINPOWER_DEF 50 -#define GROWTH_DEF 7 - -#define OUT_PITCH 0 -#define OUT_ENV 1 -#define OUT_NOTE 2 -#define OUT_PEAKS 3 -#define OUT_TRACKS 4 -#define OUT_SMSPITCH 5 -#define OUT_SMSNONPITCH 6 - -typedef struct _varout -{ - t_outlet *v_outlet; - int v_what; -} t_varout; - -typedef struct _sigmund -{ - t_object x_obj; - t_varout *x_varoutv; - int x_nvarout; - t_clock *x_clock; - float x_f; /* for main signal inlet */ - float x_sr; /* sample rate */ - int x_mode; /* MODE_STREAM, etc. */ - int x_npts; /* number of points in analysis window */ - int x_npeak; /* number of peaks to find */ - int x_loud; /* debug level */ - t_sample *x_inbuf; /* input buffer */ - int x_infill; /* number of points filled */ - int x_countdown; /* countdown to start filling buffer */ - int x_hop; /* samples between analyses */ - float x_maxfreq; /* highest-frequency peak to report */ - float x_vibrato; /* vibrato depth in half tones */ - float x_stabletime; /* period of stability needed for note */ - float x_growth; /* growth to set off a new note */ - float x_minpower; /* minimum power, in DB, for a note */ - float x_param1; - float x_param2; - float x_param3; - t_notefinder x_notefinder; - t_peak *x_trackv; - int x_ntrack; - unsigned int x_dopitch:1; - unsigned int x_donote:1; - unsigned int x_dotracks:1; -} t_sigmund; - -static void sigmund_clock(t_sigmund *x); -static void sigmund_clear(t_sigmund *x); -static void sigmund_npts(t_sigmund *x, t_floatarg f); -static void sigmund_hop(t_sigmund *x, t_floatarg f); -static void sigmund_npeak(t_sigmund *x, t_floatarg f); -static void sigmund_maxfreq(t_sigmund *x, t_floatarg f); -static void sigmund_vibrato(t_sigmund *x, t_floatarg f); -static void sigmund_stabletime(t_sigmund *x, t_floatarg f); -static void sigmund_growth(t_sigmund *x, t_floatarg f); -static void sigmund_minpower(t_sigmund *x, t_floatarg f); - -static void *sigmund_new(t_symbol *s, int argc, t_atom *argv) -{ - t_sigmund *x = (t_sigmund *)pd_new(sigmund_class); - x->x_param1 = 0; - x->x_param2 = 0.6; - x->x_param3 = 0; - x->x_npts = NPOINTS_DEF; - x->x_hop = HOP_DEF; - x->x_mode = MODE_STREAM; - x->x_npeak = NPEAK_DEF; - x->x_vibrato = VIBRATO_DEF; - x->x_stabletime = STABLETIME_DEF; - x->x_growth = GROWTH_DEF; - x->x_minpower = MINPOWER_DEF; - x->x_maxfreq = 1000000; - x->x_loud = 0; - x->x_sr = 1; - x->x_nvarout = 0; - x->x_varoutv = (t_varout *)getbytes(0); - x->x_trackv = 0; - x->x_ntrack = 0; - x->x_dopitch = x->x_donote = x->x_dotracks = 0; - - while (argc > 0) - { - t_symbol *firstarg = atom_getsymbolarg(0, argc, argv); - if (!strcmp(firstarg->s_name, "-t")) - { - x->x_mode = MODE_TABLE; - argc--, argv++; - } - else if (!strcmp(firstarg->s_name, "-s")) - { - x->x_mode = MODE_STREAM; - argc--, argv++; - } -#if 0 - else if (!strcmp(firstarg->s_name, "-b")) - { - x->x_mode = MODE_BLOCK; - argc--, argv++; - } -#endif - else if (!strcmp(firstarg->s_name, "-npts") && argc > 1) - { - sigmund_npts(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "-hop") && argc > 1) - { - sigmund_hop(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "-npeak") && argc > 1) - { - sigmund_npeak(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "-maxfreq") && argc > 1) - { - sigmund_maxfreq(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "-vibrato") && argc > 1) - { - sigmund_vibrato(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "-stabletime") && argc > 1) - { - sigmund_stabletime(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "-growth") && argc > 1) - { - sigmund_growth(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "-minpower") && argc > 1) - { - sigmund_minpower(x, atom_getfloatarg(1, argc, argv)); - argc -= 2; argv += 2; - } - else if (!strcmp(firstarg->s_name, "pitch")) - { - int n2 = x->x_nvarout+1; - x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv, - x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout)); - x->x_varoutv[x->x_nvarout].v_outlet = - outlet_new(&x->x_obj, &s_float); - x->x_varoutv[x->x_nvarout].v_what = OUT_PITCH; - x->x_nvarout = n2; - x->x_dopitch = 1; - argc--, argv++; - } - else if (!strcmp(firstarg->s_name, "env")) - { - int n2 = x->x_nvarout+1; - x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv, - x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout)); - x->x_varoutv[x->x_nvarout].v_outlet = - outlet_new(&x->x_obj, &s_float); - x->x_varoutv[x->x_nvarout].v_what = OUT_ENV; - x->x_nvarout = n2; - argc--, argv++; - } - else if (!strcmp(firstarg->s_name, "note") - || !strcmp(firstarg->s_name, "notes")) - { - int n2 = x->x_nvarout+1; - x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv, - x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout)); - x->x_varoutv[x->x_nvarout].v_outlet = - outlet_new(&x->x_obj, &s_float); - x->x_varoutv[x->x_nvarout].v_what = OUT_NOTE; - x->x_nvarout = n2; - x->x_dopitch = x->x_donote = 1; - argc--, argv++; - } - else if (!strcmp(firstarg->s_name, "peaks")) - { - int n2 = x->x_nvarout+1; - x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv, - x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout)); - x->x_varoutv[x->x_nvarout].v_outlet = - outlet_new(&x->x_obj, &s_list); - x->x_varoutv[x->x_nvarout].v_what = OUT_PEAKS; - x->x_nvarout = n2; - argc--, argv++; - } - else if (!strcmp(firstarg->s_name, "tracks")) - { - int n2 = x->x_nvarout+1; - x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv, - x->x_nvarout*sizeof(t_varout), n2*sizeof(t_varout)); - x->x_varoutv[x->x_nvarout].v_outlet = - outlet_new(&x->x_obj, &s_list); - x->x_varoutv[x->x_nvarout].v_what = OUT_TRACKS; - x->x_nvarout = n2; - x->x_dotracks = 1; - argc--, argv++; - } - else - { - pd_error(x, "sigmund: %s: unknown flag or argument missing", - firstarg->s_name); - argc--, argv++; - } - } - if (!x->x_nvarout) - { - x->x_varoutv = (t_varout *)t_resizebytes(x->x_varoutv, - 0, 2*sizeof(t_varout)); - x->x_varoutv[0].v_outlet = outlet_new(&x->x_obj, &s_float); - x->x_varoutv[0].v_what = OUT_PITCH; - x->x_varoutv[1].v_outlet = outlet_new(&x->x_obj, &s_float); - x->x_varoutv[1].v_what = OUT_ENV; - x->x_nvarout = 2; - x->x_dopitch = 1; - } - if (x->x_dotracks) - { - x->x_ntrack = x->x_npeak; - x->x_trackv = (t_peak *)getbytes(x->x_ntrack * sizeof(*x->x_trackv)); - } - x->x_clock = clock_new(&x->x_obj.ob_pd, (t_method)sigmund_clock); - - /* check parameter ranges */ - if (x->x_npts < NPOINTS_MIN) - post("sigmund~: minimum points %d", NPOINTS_MIN), - x->x_npts = NPOINTS_MIN; - if (x->x_npts != (1 << sigmund_ilog2(x->x_npts))) - post("sigmund~: adjusting analysis size to %d points", - (x->x_npts = (1 << sigmund_ilog2(x->x_npts)))); - if (x->x_hop != (1 << sigmund_ilog2(x->x_hop))) - post("sigmund~: adjusting hop size to %d points", - (x->x_hop = (1 << sigmund_ilog2(x->x_hop)))); - if (x->x_mode == MODE_STREAM) - x->x_inbuf = getbytes(sizeof(*x->x_inbuf) * x->x_npts); - else x->x_inbuf = 0; - x->x_infill = 0; - x->x_countdown = 0; - notefinder_init(&x->x_notefinder); - sigmund_clear(x); - return (x); -} - -static void sigmund_doit(t_sigmund *x, int npts, float *arraypoints, - int loud, float srate) -{ - t_peak *peakv = (t_peak *)alloca(sizeof(t_peak) * x->x_npeak); - int nfound, i, cnt; - float freq = 0, power, note = 0; - sigmund_getrawpeaks(npts, arraypoints, x->x_npeak, peakv, - &nfound, &power, srate, loud, x->x_param1, x->x_param2, x->x_param3, - x->x_maxfreq); - if (x->x_dopitch) - sigmund_getpitch(nfound, peakv, &freq, npts, srate, loud); - if (x->x_donote) - notefinder_doit(&x->x_notefinder, freq, power, ¬e, x->x_vibrato, - x->x_stabletime * 0.001f * x->x_sr / (float)x->x_hop, - exp(LOG10*0.1*(x->x_minpower - 100)), x->x_growth, loud); - if (x->x_dotracks) - sigmund_peaktrack(nfound, peakv, x->x_ntrack, x->x_trackv, loud); - - for (cnt = x->x_nvarout; cnt--;) - { - t_varout *v = &x->x_varoutv[cnt]; - switch (v->v_what) - { - case OUT_PITCH: - outlet_float(v->v_outlet, ftom(freq)); - break; - case OUT_ENV: - outlet_float(v->v_outlet, powtodb(power)); - break; - case OUT_NOTE: - if (note > 0) - outlet_float(v->v_outlet, ftom(note)); - break; - case OUT_PEAKS: - for (i = 0; i < nfound; i++) - { - t_atom at[5]; - SETFLOAT(at, (float)i); - SETFLOAT(at+1, peakv[i].p_freq); - SETFLOAT(at+2, 2*peakv[i].p_amp); - SETFLOAT(at+3, 2*peakv[i].p_ampreal); - SETFLOAT(at+4, 2*peakv[i].p_ampimag); - outlet_list(v->v_outlet, &s_list, 5, at); - } - break; - case OUT_TRACKS: - for (i = 0; i < x->x_ntrack; i++) - { - t_atom at[4]; - SETFLOAT(at, (float)i); - SETFLOAT(at+1, x->x_trackv[i].p_freq); - SETFLOAT(at+2, 2*x->x_trackv[i].p_amp); - SETFLOAT(at+3, x->x_trackv[i].p_tmp); - outlet_list(v->v_outlet, &s_list, 4, at); - } - break; - } - } -} - -static void sigmund_list(t_sigmund *x, t_symbol *s, int argc, t_atom *argv) -{ - t_symbol *syminput = atom_getsymbolarg(0, argc, argv); - int npts = atom_getintarg(1, argc, argv); - int onset = atom_getintarg(2, argc, argv); - float srate = atom_getfloatarg(3, argc, argv); - int loud = atom_getfloatarg(4, argc, argv); - int arraysize, totstorage, nfound, i; - t_garray *a; - float *arraypoints, pit; - - if (argc < 5) - { - post( - "sigmund: array-name, npts, array-onset, samplerate, loud"); - return; - } - if (npts < 64 || npts != (1 << ilog2(npts))) - { - error("sigmund: bad npoints"); - return; - } - if (onset < 0) - { - error("sigmund: negative onset"); - return; - } - - if (!(a = (t_garray *)pd_findbyclass(syminput, garray_class)) || - !garray_getfloatarray(a, &arraysize, &arraypoints) || - arraysize < onset + npts) - { - error("%s: array missing or too small", syminput->s_name); - return; - } - if (arraysize < npts) - { - error("sigmund~: too few points in array"); - return; - } - sigmund_doit(x, npts, arraypoints+onset, loud, srate); -} - -static void sigmund_clear(t_sigmund *x) -{ - if (x->x_trackv) - memset(x->x_trackv, 0, x->x_ntrack * sizeof(*x->x_trackv)); - x->x_infill = x->x_countdown = 0; -} - - /* these are for testing; their meanings vary... */ -static void sigmund_param1(t_sigmund *x, t_floatarg f) -{ - x->x_param1 = f; -} - -static void sigmund_param2(t_sigmund *x, t_floatarg f) -{ - x->x_param2 = f; -} - -static void sigmund_param3(t_sigmund *x, t_floatarg f) -{ - x->x_param3 = f; -} - -static void sigmund_npts(t_sigmund *x, t_floatarg f) -{ - x->x_npts = f; - /* check parameter ranges */ - if (x->x_npts < NPOINTS_MIN) - post("sigmund~: minimum points %d", NPOINTS_MIN), - x->x_npts = NPOINTS_MIN; - if (x->x_npts != (1 << sigmund_ilog2(x->x_npts))) - post("sigmund~: adjusting analysis size to %d points", - (x->x_npts = (1 << sigmund_ilog2(x->x_npts)))); -} - -static void sigmund_hop(t_sigmund *x, t_floatarg f) -{ - x->x_hop = f; - /* check parameter ranges */ - if (x->x_hop != (1 << sigmund_ilog2(x->x_hop))) - post("sigmund~: adjusting analysis size to %d points", - (x->x_hop = (1 << sigmund_ilog2(x->x_hop)))); -} - -static void sigmund_npeak(t_sigmund *x, t_floatarg f) -{ - if (f < 1) - f = 1; - x->x_npeak = f; -} - -static void sigmund_maxfreq(t_sigmund *x, t_floatarg f) -{ - x->x_maxfreq = f; -} - -static void sigmund_vibrato(t_sigmund *x, t_floatarg f) -{ - if (f < 0) - f = 0; - x->x_vibrato = f; -} - -static void sigmund_stabletime(t_sigmund *x, t_floatarg f) -{ - if (f < 0) - f = 0; - x->x_stabletime = f; -} - -static void sigmund_growth(t_sigmund *x, t_floatarg f) -{ - if (f < 0) - f = 0; - x->x_growth = f; -} - -static void sigmund_minpower(t_sigmund *x, t_floatarg f) -{ - if (f < 0) - f = 0; - x->x_minpower = f; -} - -static void sigmund_print(t_sigmund *x) -{ - post("sigmund~ settings:"); - post("npts %d", (int)x->x_npts); - post("hop %d", (int)x->x_hop); - post("npeak %d", (int)x->x_npeak); - post("maxfreq %g", x->x_maxfreq); - post("vibrato %g", x->x_vibrato); - post("stabletime %g", x->x_stabletime); - post("growth %g", x->x_growth); - post("minpower %g", x->x_minpower); -} - -static void sigmund_printnext(t_sigmund *x, t_float f) -{ - x->x_loud = f; -} - -static void sigmund_clock(t_sigmund *x) -{ - if (x->x_infill == x->x_npts) - { - sigmund_doit(x, x->x_npts, x->x_inbuf, x->x_loud, x->x_sr); - if (x->x_hop >= x->x_npts) - { - x->x_infill = 0; - x->x_countdown = x->x_hop - x->x_npts; - } - else - { - memmove(x->x_inbuf, x->x_inbuf + x->x_hop, - (x->x_infill = x->x_npts - x->x_hop) * sizeof(*x->x_inbuf)); - x->x_countdown = 0; - } - x->x_loud = 0; - } -} - -static t_int *sigmund_perform(t_int *w) -{ - t_sigmund *x = (t_sigmund *)(w[1]); - float *in = (float *)(w[2]); - int n = (int)(w[3]); - - if (x->x_countdown > 0) - x->x_countdown -= n; - else if (x->x_infill != x->x_npts) - { - int i, j; - float *fp = x->x_inbuf + x->x_infill; - for (j = 0; j < n; j++) - *fp++ = *in++; - x->x_infill += n; - if (x->x_infill == x->x_npts) - clock_delay(x->x_clock, 0); - } - return (w+4); -} - -static void sigmund_dsp(t_sigmund *x, t_signal **sp) -{ - if (x->x_mode == MODE_STREAM) - { - if (x->x_hop % sp[0]->s_n) - post("sigmund: adjusting hop size to %d", - (x->x_hop = sp[0]->s_n * (x->x_hop / sp[0]->s_n))); - x->x_sr = sp[0]->s_sr; - dsp_add(sigmund_perform, 3, x, sp[0]->s_vec, sp[0]->s_n); - } -} - -static void sigmund_free(t_sigmund *x) -{ - if (x->x_inbuf) - freebytes(x->x_inbuf, x->x_npts * sizeof(*x->x_inbuf)); - if (x->x_trackv) - freebytes(x->x_trackv, x->x_ntrack * sizeof(*x->x_trackv)); - clock_free(x->x_clock); -} - -void sigmund_tilde_setup(void) -{ - sigmund_class = class_new(gensym("sigmund~"), (t_newmethod)sigmund_new, - (t_method)sigmund_free, sizeof(t_sigmund), 0, A_GIMME, 0); - class_addlist(sigmund_class, sigmund_list); - class_addmethod(sigmund_class, (t_method)sigmund_dsp, gensym("dsp"), 0); - CLASS_MAINSIGNALIN(sigmund_class, t_sigmund, x_f); - class_addmethod(sigmund_class, (t_method)sigmund_param1, - gensym("param1"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_param2, - gensym("param2"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_param3, - gensym("param3"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_npts, - gensym("npts"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_hop, - gensym("hop"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_maxfreq, - gensym("maxfreq"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_npeak, - gensym("npeak"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_vibrato, - gensym("vibrato"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_stabletime, - gensym("stabletime"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_growth, - gensym("growth"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_minpower, - gensym("minpower"), A_FLOAT, 0); - class_addmethod(sigmund_class, (t_method)sigmund_print, - gensym("print"), 0); - class_addmethod(sigmund_class, (t_method)sigmund_printnext, - gensym("printnext"), A_FLOAT, 0); - post("sigmund version 0.02"); -} - |