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Diffstat (limited to 'externals/extra/0.43.2/fiddle~/fiddle~.c')
| -rw-r--r-- | externals/extra/0.43.2/fiddle~/fiddle~.c | 1851 |
1 files changed, 0 insertions, 1851 deletions
diff --git a/externals/extra/0.43.2/fiddle~/fiddle~.c b/externals/extra/0.43.2/fiddle~/fiddle~.c deleted file mode 100644 index ea676784..00000000 --- a/externals/extra/0.43.2/fiddle~/fiddle~.c +++ /dev/null @@ -1,1851 +0,0 @@ -/* Copyright (c) 1997-1999 Miller Puckette and Ted Apel. -* For information on usage and redistribution, and for a DISCLAIMER OF ALL -* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ - -/* - * Fiddle is a pitch tracker hardwired to have hop size ("H") equal to - * half its window size ("N"). - * - * This version should compile for Max "0.26," JMAX, Pd, or Max/MSP. - * - * The "lastanalysis" field holds the shifted FT of the previous H - * samples. The buffer contains in effect points 1/2, 3/2, ..., (N-1)/2 - * of the DTFT of a real vector of length N, half of whose points are zero, - * i.e., only the first H points are used. Put another way, we get the - * the odd-numbered points of the FFT of the H points, zero padded to 4*H in - * length. The integer points 0, 1, ..., H-1 - * are found by interpolating these others, using the fact that the - * half-integer points are band-limited (they only have positive frequencies.) - * To facilitate the interpolation the "lastanalysis" buffer contains - * FILTSIZE extra points (1/2-FILTSIZE, ..., -1/2) at the beginning and - * FILTSIZE again at the end ((N+1)/2, ..., FILTSIZE+(N-1)/2). The buffer - * therefore has N+4*FILTSIZE floating-point numbers in it. - * - * after doing this I found out that you can just do a real FFT - * of the H new points, zero-padded to contain N points, and using a similar - * but simpler interpolation scheme you can still get 2N points of the DTFT - * of the N points. Jean Laroche is a big fat hen. - * - */ - - -/* These pragmas are only used for MSVC, not MinGW or Cygwin <hans@at.or.at> */ -#ifdef _MSC_VER -#pragma warning (disable: 4305 4244) -#endif - -/* this #ifdef does nothing, but its there... */ -#ifdef _WIN32 -#define flog log -#define fexp exp -#define fsqrt sqrt -#else -#define flog log -#define fexp exp -#define fsqrt sqrt -#endif - -char fiddle_version[] = "fiddle version 1.1 TEST4"; - -#ifdef JMAX -#include "fts.h" -#include <stdio.h> -#include <stdlib.h> -typedef float t_float; -typedef float t_floatarg; -typedef fts_symbol_t t_symbol; - -static void *getbytes(size_t nbytes) -{ - void *ret; - if (nbytes < 1) nbytes = 1; - ret = (void *)malloc(nbytes); - return (ret); -} - -static void *resizebytes(void *old, size_t oldsize, size_t newsize) -{ - void *ret; - if (newsize < 1) newsize = 1; - ret = (void *)realloc((char *)old, newsize); - return (ret); -} - -static void freebytes(void *fatso, size_t nbytes) -{ - free(fatso); -} - -#define CLASSNAME "fiddle" - -#define OUTLETpower 5 -#define OUTLETmicropitch1 4 -#define OUTLETmicropitch2 3 -#define OUTLETmicropitch3 2 -#define OUTLETattack 1 -#define OUTLETpitch 0 - -static fts_symbol_t *dsp_symbol = 0; -#define error post - -#endif /* FTS */ - -#ifdef MAX26 -#define t_floatarg double -#include "m_extern.h" -#include "d_graph.h" -#include "d_ugen.h" -#endif /* MAX26 */ - -#ifdef PD -#include "m_pd.h" -#endif /* PD */ - -#ifdef MSP -#define flog log -#define fexp exp -#define fsqrt sqrt -#endif /* MSP */ - -#ifdef MSP -#define t_floatarg double -#include "ext.h" -#include "z_dsp.h" -#include "fft_mayer.proto.h" - -#endif /* MSP */ - -#include <math.h> - - -#define MINBIN 3 -#define DEFAMPLO 40 -#define DEFAMPHI 50 -#define DEFATTACKTIME 100 -#define DEFATTACKTHRESH 10 -#define DEFVIBTIME 50 -#define DEFVIBDEPTH 0.5 -#define GLISS 0.7f -#define DBFUDGE 30.8f -#define MINFREQINBINS 5 /* minimum frequency in bins for reliable output */ - -#define MAXNPITCH 3 -#define MAXHIST 3 /* find N hottest peaks in histogram */ - -#define MAXPOINTS 8192 -#define MINPOINTS 128 -#define DEFAULTPOINTS 1024 - -#define HISTORY 20 -#define MAXPEAK 100 /* maximum number of peaks */ -#define DEFNPEAK 20 /* default number of peaks */ - -#define MAXNPEAK (MAXLOWPEAK + MAXSTRONGPEAK) -#define MINBW (0.03f) /* consider BW >= 0.03 FFT bins */ - -#define BINPEROCT 48 /* bins per octave */ -#define BPERO_OVER_LOG2 69.24936196f /* BINSPEROCT/log(2) */ -#define FACTORTOBINS (t_float)(4/0.0145453) /* 4 / (pow(2.,1/48.) - 1) */ -#define BINGUARD 10 /* extra bins to throw in front */ -#define PARTIALDEVIANCE 0.023f /* acceptable partial detuning in % */ -#define LOGTODB 4.34294481903f /* 20/log(10) */ - -#define KNOCKTHRESH 10.f /* don't know how to describe this */ - - -static t_float sigfiddle_partialonset[] = -{ -0, -48, -76.0782000346154967102, -96, -111.45254855459339269887, -124.07820003461549671089, -134.75303625876499715823, -144, -152.15640006923099342109, -159.45254855459339269887, -166.05271769459026829915, -172.07820003461549671088, -177.62110647077242370064, -182.75303625876499715892, -187.53074858920888940907, -192, -}; - -#define NPARTIALONSET ((int)(sizeof(sigfiddle_partialonset)/sizeof(t_float))) - -static int sigfiddle_intpartialonset[] = -{ -0, -48, -76, -96, -111, -124, -135, -144, -152, -159, -166, -172, -178, -183, -188, -192, -}; - -/* these coefficients, which come from the "upsamp" subdirectory, -are a filter kernel for upsampling by a factor of two, assuming -the sound to be upsampled has no energy above half the Nyquist, i.e., -that it's already 2x oversampled compared to the theoretically possible -sample rate. I got these by trial and error. */ - -#define FILT1 ((t_float)(.5 * 1.227054)) -#define FILT2 ((t_float)(.5 * -0.302385)) -#define FILT3 ((t_float)(.5 * 0.095326)) -#define FILT4 ((t_float)(.5 * -0.022748)) -#define FILT5 ((t_float)(.5 * 0.002533)) -#define FILTSIZE 5 - -typedef struct peakout /* a peak for output */ -{ - t_float po_freq; /* frequency in hz */ - t_float po_amp; /* amplitude */ -} t_peakout; - -typedef struct peak /* a peak for analysis */ -{ - t_float p_freq; /* frequency in bins */ - t_float p_width; /* peak width in bins */ - t_float p_pow; /* peak power */ - t_float p_loudness; /* 4th root of power */ - t_float *p_fp; /* pointer back to spectrum */ -} t_peak; - -typedef struct histopeak -{ - t_float h_pitch; /* estimated pitch */ - t_float h_value; /* value of peak */ - t_float h_loud; /* combined strength of found partials */ - int h_index; /* index of bin holding peak */ - int h_used; /* true if an x_hist entry points here */ -} t_histopeak; - -typedef struct pitchhist /* struct for keeping history by pitch */ -{ - t_float h_pitch; /* pitch to output */ - t_float h_amps[HISTORY]; /* past amplitudes */ - t_float h_pitches[HISTORY]; /* past pitches */ - t_float h_noted; /* last pitch output */ - int h_age; /* number of frames pitch has been there */ - t_histopeak *h_wherefrom; /* new histogram peak to incorporate */ - void *h_outlet; -} t_pitchhist; - -typedef struct sigfiddle /* instance struct */ -{ -#ifdef JMAX - fts_object_t x_h; /* object header */ - fts_alarm_t x_clock; /* callback for timeouts */ -#endif -#ifdef MAX26 - t_head x_h; /* header for tilde objects */ - t_sig *x_io[IN1+OUT0]; /* number of signal inputs and outputs */ - void *x_clock; /* a "clock" object */ -#endif -#ifdef PD - t_object x_ob; /* object header */ - t_clock *x_clock; /* callback for timeouts */ -#endif -#ifdef MSP - t_pxobject x_obj; - void *x_clock; - long x_downsample; /* downsample feature because of - MSP's large sig vector sizes */ -#endif - t_float *x_inbuf; /* buffer to analyze, npoints/2 elems */ - t_float *x_lastanalysis; /* FT of last buffer (see main comment) */ - t_float *x_spiral; /* 1/4-wave complex exponential */ - t_peakout *x_peakbuf; /* spectral peaks for output */ - int x_npeakout; /* number of spectral peaks to output */ - int x_npeakanal; /* number of spectral peaks to analyze */ - int x_phase; /* number of points since last output */ - int x_histphase; /* phase into amplitude history vector */ - int x_hop; /* period of output, npoints/2 */ - t_float x_sr; /* sample rate */ - t_pitchhist x_hist[MAXNPITCH]; /* history of current pitches */ - int x_nprint; /* how many periods to print */ - int x_npitch; /* number of simultaneous pitches */ - t_float x_dbs[HISTORY]; /* DB history, indexed by "histphase" */ - t_float x_peaked; /* peak since last attack */ - int x_dbage; /* number of bins DB has met threshold */ - int x_auto; /* true if generating continuous output */ -/* parameters */ - t_float x_amplo; - t_float x_amphi; - int x_attacktime; - int x_attackbins; - t_float x_attackthresh; - int x_vibtime; - int x_vibbins; - t_float x_vibdepth; - t_float x_npartial; -/* outlets & clock */ - void *x_envout; - int x_attackvalue; - void *x_attackout; - void *x_noteout; - void *x_peakout; -} t_sigfiddle; - -#if CHECKER -t_float fiddle_checker[1024]; -#endif - -#ifdef MSP -/* Mac compiler requires prototypes for everything */ - -int sigfiddle_ilog2(int n); -t_float fiddle_mtof(t_float f); -t_float fiddle_ftom(t_float f); -void sigfiddle_doit(t_sigfiddle *x); -void sigfiddle_debug(t_sigfiddle *x); -void sigfiddle_print(t_sigfiddle *x); -void sigfiddle_assist(t_sigfiddle *x, void *b, long m, long a, char *s); -void sigfiddle_amprange(t_sigfiddle *x, double amplo, double amphi); -void sigfiddle_reattack(t_sigfiddle *x, t_floatarg attacktime, t_floatarg -attackthresh); -void sigfiddle_vibrato(t_sigfiddle *x, t_floatarg vibtime, t_floatarg -vibdepth); -void sigfiddle_npartial(t_sigfiddle *x, double npartial); -void sigfiddle_auto(t_sigfiddle *x, t_floatarg f); -void sigfiddle_setnpoints(t_sigfiddle *x, t_floatarg f); -int sigfiddle_doinit(t_sigfiddle *x, long npoints, long npitch, long -npeakanal, long npeakout); -static t_int *fiddle_perform(t_int *w); -void sigfiddle_dsp(t_sigfiddle *x, t_signal **sp); -void sigfiddle_tick(t_sigfiddle *x); -void sigfiddle_bang(t_sigfiddle *x); -void sigfiddle_ff(t_sigfiddle *x); -void *sigfiddle_new(long npoints, long npitch, - long npeakanal, long npeakout); -void msp_fft(t_float *buf, long np, long inv); -t_float msp_ffttemp[MAXPOINTS*2]; -int errno; -#endif - -int sigfiddle_ilog2(int n) -{ - int ret = -1; - while (n) - { - n >>= 1; - ret++; - } - return (ret); -} - -t_float fiddle_mtof(t_float f) -{ - return (8.17579891564 * exp(.0577622650 * f)); -} - -t_float fiddle_ftom(t_float f) -{ - return (17.3123405046 * log(.12231220585 * f)); -} -#define ftom fiddle_ftom -#define mtof fiddle_mtof - -void sigfiddle_doit(t_sigfiddle *x) -{ -#ifdef MSP - /* prevents interrupt-level stack overflow crash with Netscape. */ - static t_float spect1[4*MAXPOINTS]; - static t_float spect2[MAXPOINTS + 4*FILTSIZE]; -#else - t_float spect1[4*MAXPOINTS]; - t_float spect2[MAXPOINTS + 4*FILTSIZE]; -#endif -#if CHECKER - t_float checker3[4*MAXPOINTS]; -#endif - - t_peak peaklist[MAXPEAK + 1], *pk1; - t_peakout *pk2; - t_histopeak histvec[MAXHIST], *hp1; - int i, j, k, hop = x->x_hop, n = 2*hop, npeak, npitch, - logn = sigfiddle_ilog2(n), newphase, oldphase; - t_float *fp, *fp1, *fp2, *fp3, total_power, total_loudness, total_db; - t_float maxbin = BINPEROCT * (logn-2), *histogram = spect2 + BINGUARD; - t_pitchhist *phist; - t_float hzperbin = x->x_sr / (2.0f * n); - int npeakout = x->x_npeakout, npeakanal = x->x_npeakanal; - int npeaktot = (npeakout > npeakanal ? npeakout : npeakanal); - - oldphase = x->x_histphase; - newphase = x->x_histphase + 1; - if (newphase == HISTORY) newphase = 0; - x->x_histphase = newphase; - - /* - * multiply the H points by a 1/4-wave complex exponential, - * and take FFT of the result. - */ - for (i = 0, fp1 = x->x_inbuf, fp2 = x->x_spiral, fp3 = spect1; - i < hop; i++, fp1++, fp2 += 2, fp3 += 2) - fp3[0] = fp1[0] * fp2[0], fp3[1] = fp1[0] * fp2[1]; - -#ifdef MAX26 - fft(spect1, hop, 0); -#endif -#ifdef PD - pd_fft(spect1, hop, 0); -#endif -#ifdef JMAX - fts_cfft_inplc((complex *)spect1, hop); -#endif -#ifdef MSP - msp_fft(spect1,hop,0); -#endif - /* - * now redistribute the points to get in effect the odd-numbered - * points of the FFT of the H points, zero padded to 4*H in length. - */ - for (i = 0, fp1 = spect1, fp2 = spect2 + (2*FILTSIZE); - i < (hop>>1); i++, fp1 += 2, fp2 += 4) - fp2[0] = fp1[0], fp2[1] = fp1[1]; - for (i = 0, fp1 = spect1 + n - 2, fp2 = spect2 + (2*FILTSIZE+2); - i < (hop>>1); i++, fp1 -= 2, fp2 += 4) - fp2[0] = fp1[0], fp2[1] = -fp1[1]; - for (i = 0, fp1 = spect2 + (2*FILTSIZE), fp2 = spect2 + (2*FILTSIZE-2); - i<FILTSIZE; i++, fp1+=2, fp2-=2) - fp2[0] = fp1[0], fp2[1] = -fp1[1]; - for (i = 0, fp1 = spect2 + (2*FILTSIZE+n-2), fp2 = spect2 + (2*FILTSIZE+n); - i<FILTSIZE; i++, fp1-=2, fp2+=2) - fp2[0] = fp1[0], fp2[1] = -fp1[1]; -#if 0 - { - fp = spect2 + 2*FILTSIZE; - post("x1 re %12.4f %12.4f %12.4f %12.4f %12.4f", - fp[0], fp[2], fp[4], fp[6], fp[8]); - post("x1 im %12.4f %12.4f %12.4f %12.4f %12.4f", - fp[1], fp[3], fp[5], fp[7], fp[9]); - } -#endif - /* spect2 is now prepared; now combine spect2 and lastanalysis into - * spect1. Odd-numbered points of spect1 are the points of "last" - * plus (-i, i, -i, ...) times spect1. Even-numbered points are - * the interpolated points of "last" plus (1, -1, 1, ...) times the - * interpolated points of spect1. - * - * To interpolate, take FILT1 exp(-pi/4) times - * the previous point, FILT2*exp(-3*pi/4) times 3 bins before, - * etc, and FILT1 exp(pi/4), FILT2 exp(3pi/4), etc., to weight - * the +1, +3, etc., points. - * - * In this calculation, we take (1, i, -1, -i, 1) times the - * -9, -7, ..., -1 points, and (i, -1, -i, 1, i) times the 1, 3,..., 9 - * points of the OLD spectrum, alternately adding and subtracting - * the new spectrum to the old; then we multiply the whole thing - * by exp(-i pi/4). - */ - for (i = 0, fp1 = spect1, fp2 = x->x_lastanalysis + 2*FILTSIZE, - fp3 = spect2 + 2*FILTSIZE; - i < (hop>>1); i++) - { - t_float re, im; - - re= FILT1 * ( fp2[ -2] -fp2[ 1] +fp3[ -2] -fp3[ 1]) + - FILT2 * ( fp2[ -3] -fp2[ 2] +fp3[ -3] -fp3[ 2]) + - FILT3 * (-fp2[ -6] +fp2[ 5] -fp3[ -6] +fp3[ 5]) + - FILT4 * (-fp2[ -7] +fp2[ 6] -fp3[ -7] +fp3[ 6]) + - FILT5 * ( fp2[-10] -fp2[ 9] +fp3[-10] -fp3[ 9]); - - im= FILT1 * ( fp2[ -1] +fp2[ 0] +fp3[ -1] +fp3[ 0]) + - FILT2 * (-fp2[ -4] -fp2[ 3] -fp3[ -4] -fp3[ 3]) + - FILT3 * (-fp2[ -5] -fp2[ 4] -fp3[ -5] -fp3[ 4]) + - FILT4 * ( fp2[ -8] +fp2[ 7] +fp3[ -8] +fp3[ 7]) + - FILT5 * ( fp2[ -9] +fp2[ 8] +fp3[ -9] +fp3[ 8]); - - fp1[0] = 0.7071f * (re + im); - fp1[1] = 0.7071f * (im - re); - fp1[4] = fp2[0] + fp3[1]; - fp1[5] = fp2[1] - fp3[0]; - - fp1 += 8, fp2 += 2, fp3 += 2; - re= FILT1 * ( fp2[ -2] -fp2[ 1] -fp3[ -2] +fp3[ 1]) + - FILT2 * ( fp2[ -3] -fp2[ 2] -fp3[ -3] +fp3[ 2]) + - FILT3 * (-fp2[ -6] +fp2[ 5] +fp3[ -6] -fp3[ 5]) + - FILT4 * (-fp2[ -7] +fp2[ 6] +fp3[ -7] -fp3[ 6]) + - FILT5 * ( fp2[-10] -fp2[ 9] -fp3[-10] +fp3[ 9]); - - im= FILT1 * ( fp2[ -1] +fp2[ 0] -fp3[ -1] -fp3[ 0]) + - FILT2 * (-fp2[ -4] -fp2[ 3] +fp3[ -4] +fp3[ 3]) + - FILT3 * (-fp2[ -5] -fp2[ 4] +fp3[ -5] +fp3[ 4]) + - FILT4 * ( fp2[ -8] +fp2[ 7] -fp3[ -8] -fp3[ 7]) + - FILT5 * ( fp2[ -9] +fp2[ 8] -fp3[ -9] -fp3[ 8]); - - fp1[0] = 0.7071f * (re + im); - fp1[1] = 0.7071f * (im - re); - fp1[4] = fp2[0] - fp3[1]; - fp1[5] = fp2[1] + fp3[0]; - - fp1 += 8, fp2 += 2, fp3 += 2; - } -#if 0 - if (x->x_nprint) - { - for (i = 0, fp = spect1; i < 16; i++, fp+= 4) - post("spect %d %f %f --> %f", i, fp[0], fp[1], - sqrt(fp[0] * fp[0] + fp[1] * fp[1])); - } -#endif - /* copy new spectrum out */ - for (i = 0, fp1 = spect2, fp2 = x->x_lastanalysis; - i < n + 4*FILTSIZE; i++) *fp2++ = *fp1++; - - for (i = 0; i < MINBIN; i++) spect1[4*i + 2] = spect1[4*i + 3] = 0; - /* starting at bin MINBIN, compute hanning windowed power spectrum */ - for (i = MINBIN, fp1 = spect1+4*MINBIN, total_power = 0; - i < n-2; i++, fp1 += 4) - { - t_float re = fp1[0] - 0.5 * (fp1[-8] + fp1[8]); - t_float im = fp1[1] - 0.5 * (fp1[-7] + fp1[9]); - fp1[3] = (total_power += (fp1[2] = re * re + im * im)); - } - - if (total_power > 1e-9f) - { - total_db = (100.f - DBFUDGE) + LOGTODB * log(total_power/n); - total_loudness = fsqrt(fsqrt(total_power)); - if (total_db < 0) total_db = 0; - } - else total_db = total_loudness = 0; - /* store new db in history vector */ - x->x_dbs[newphase] = total_db; - if (total_db < x->x_amplo) goto nopow; -#if 1 - if (x->x_nprint) post("power %f", total_power); -#endif - -#if CHECKER - /* verify that our FFT resampling thing is putting out good results */ - for (i = 0; i < hop; i++) - { - checker3[2*i] = fiddle_checker[i]; - checker3[2*i + 1] = 0; - checker3[n + 2*i] = fiddle_checker[i] = x->x_inbuf[i]; - checker3[n + 2*i + 1] = 0; - } - for (i = 2*n; i < 4*n; i++) checker3[i] = 0; - fft(checker3, 2*n, 0); - if (x->x_nprint) - { - for (i = 0, fp = checker3; i < 16; i++, fp += 2) - post("spect %d %f %f --> %f", i, fp[0], fp[1], - sqrt(fp[0] * fp[0] + fp[1] * fp[1])); - } - -#endif - npeak = 0; - - /* search for peaks */ - for (i = MINBIN, fp = spect1+4*MINBIN, pk1 = peaklist; - i < n-2 && npeak < npeaktot; i++, fp += 4) - { - t_float height = fp[2], h1 = fp[-2], h2 = fp[6]; - t_float totalfreq, pfreq, f1, f2, m, var, stdev; - - if (height < h1 || height < h2 || - h1 < 0.00001f*total_power || h2 < 0.00001f*total_power) - continue; - - /* use an informal phase vocoder to estimate the frequency. - Do this for the two adjacent bins too. */ - pfreq= ((fp[-8] - fp[8]) * (2.0f * fp[0] - fp[8] - fp[-8]) + - (fp[-7] - fp[9]) * (2.0f * fp[1] - fp[9] - fp[-7])) / - (2.0f * height); - f1= ((fp[-12] - fp[4]) * (2.0f * fp[-4] - fp[4] - fp[-12]) + - (fp[-11] - fp[5]) * (2.0f * fp[-3] - fp[5] - fp[-11])) / - (2.0f * h1) - 1; - f2= ((fp[-4] - fp[12]) * (2.0f * fp[4] - fp[12] - fp[-4]) + - (fp[-3] - fp[13]) * (2.0f * fp[5] - fp[13] - fp[-3])) / - (2.0f * h2) + 1; - - /* get sample mean and variance of the three */ - m = 0.333333f * (pfreq + f1 + f2); - var = 0.5f * ((pfreq-m)*(pfreq-m) + (f1-m)*(f1-m) + (f2-m)*(f2-m)); - - totalfreq = i + m; - if (var * total_power > KNOCKTHRESH * height || var < 1e-30) - { -#if 0 - if (x->x_nprint) - post("cancel: %.2f hz, index %.1f, power %.5f, stdev=%.2f", - totalfreq * hzperbin, BPERO_OVER_LOG2 * log(totalfreq) - 96, - height, sqrt(var)); -#endif - continue; - } - stdev = fsqrt(var); - if (totalfreq < 4) - { - if (x->x_nprint) post("oops: was %d, freq %f, m %f, stdev %f h %f", - i, totalfreq, m, stdev, height); - totalfreq = 4; - } - pk1->p_width = stdev; - - pk1->p_pow = height; - pk1->p_loudness = fsqrt(fsqrt(height)); - pk1->p_fp = fp; - pk1->p_freq = totalfreq; - npeak++; -#if 1 - if (x->x_nprint) - { - post("peak: %.2f hz. index %.1f, power %.5f, stdev=%.2f", - pk1->p_freq * hzperbin, - BPERO_OVER_LOG2 * log(pk1->p_freq) - 96, - height, stdev); - } -#endif - pk1++; - } - - /* prepare the raw peaks for output */ - for (i = 0, pk1 = peaklist, pk2 = x->x_peakbuf; i < npeak; - i++, pk1++, pk2++) - { - t_float loudness = pk1->p_loudness; - if (i >= npeakout) break; - pk2->po_freq = hzperbin * pk1->p_freq; - pk2->po_amp = (2. / (t_float)n) * (loudness * loudness); - } - for (; i < npeakout; i++, pk2++) pk2->po_amp = pk2->po_freq = 0; - - /* now, working back into spect2, make a sort of "liklihood" - * spectrum. Proceeding in 48ths of an octave, from 2 to - * n/2 (in bins), the likelihood of each pitch range is contributed - * to by every peak in peaklist that's an integer multiple of it - * in frequency. - */ - - if (npeak > npeakanal) npeak = npeakanal; /* max # peaks to analyze */ - for (i = 0, fp1 = histogram; i < maxbin; i++) *fp1++ = 0; - for (i = 0, pk1 = peaklist; i < npeak; i++, pk1++) - { - t_float pit = BPERO_OVER_LOG2 * flog(pk1->p_freq) - 96.0; - t_float binbandwidth = FACTORTOBINS * pk1->p_width/pk1->p_freq; - t_float putbandwidth = (binbandwidth < 2 ? 2 : binbandwidth); - t_float weightbandwidth = (binbandwidth < 1.0 ? 1.0 : binbandwidth); - /* t_float weightamp = 1.0f + 3.0f * pk1->p_pow / pow; */ - t_float weightamp = 4. * pk1->p_loudness / total_loudness; - for (j = 0, fp2 = sigfiddle_partialonset; j < NPARTIALONSET; j++, fp2++) - { - t_float bin = pit - *fp2; - if (bin < maxbin) - { - t_float para, pphase, score = 30.0 * weightamp / - ((j+x->x_npartial) * weightbandwidth); - int firstbin = bin + 0.5f - 0.5f * putbandwidth; - int lastbin = bin + 0.5f + 0.5f * putbandwidth; - int ibw = lastbin - firstbin; - if (firstbin < -BINGUARD) break; - para = 1.0f / (putbandwidth * putbandwidth); - for (k = 0, fp3 = histogram + firstbin, - pphase = firstbin-bin; k <= ibw; - k++, fp3++, pphase += 1.0f) - { - *fp3 += score * (1.0f - para * pphase * pphase); - } - } - } - } -#if 1 - if (x->x_nprint) - { - for (i = 0; i < 6*5; i++) - { - t_float fhz = hzperbin * exp ((8*i + 96) * (1./BPERO_OVER_LOG2)); - if (!(i % 6)) post("-- bin %d pitch %f freq %f----", 8*i, - ftom(fhz), fhz);; - post("%3d %3d %3d %3d %3d %3d %3d %3d", - (int)(histogram[8*i]), - (int)(histogram[8*i+1]), - (int)(histogram[8*i+2]), - (int)(histogram[8*i+3]), - (int)(histogram[8*i+4]), - (int)(histogram[8*i+5]), - (int)(histogram[8*i+6]), - (int)(histogram[8*i+7])); - } - } - -#endif - - /* - * Next we find up to NPITCH strongest peaks in the histogram. - * if a peak is related to a stronger one via an interval in - * the sigfiddle_partialonset array, we suppress it. - */ - - for (npitch = 0; npitch < x->x_npitch; npitch++) - { - int indx; - t_float best; - if (npitch) - { - for (best = 0, indx = -1, j=1; j < maxbin-1; j++) - { - if (histogram[j] > best && histogram[j] > histogram[j-1] && - histogram[j] > histogram[j+1]) - { - for (k = 0; k < npitch; k++) - if (histvec[k].h_index == j) - goto peaknogood; - for (k = 0; k < NPARTIALONSET; k++) - { - if (j - sigfiddle_intpartialonset[k] < 0) break; - if (histogram[j - sigfiddle_intpartialonset[k]] - > histogram[j]) goto peaknogood; - } - for (k = 0; k < NPARTIALONSET; k++) - { - if (j + sigfiddle_intpartialonset[k] >= maxbin) break; - if (histogram[j + sigfiddle_intpartialonset[k]] - > histogram[j]) goto peaknogood; - } - indx = j; - best = histogram[j]; - } - peaknogood: ; - } - } - else - { - for (best = 0, indx = -1, j=0; j < maxbin; j++) - if (histogram[j] > best) - indx = j, best = histogram[j]; - } - if (indx < 0) break; - histvec[npitch].h_value = best; - histvec[npitch].h_index = indx; - } -#if 1 - if (x->x_nprint) - { - for (i = 0; i < npitch; i++) - { - post("index %d freq %f --> value %f", histvec[i].h_index, - exp((1./BPERO_OVER_LOG2) * (histvec[i].h_index + 96)), - histvec[i].h_value); - post("next %f , prev %f", - exp((1./BPERO_OVER_LOG2) * (histvec[i].h_index + 97)), - exp((1./BPERO_OVER_LOG2) * (histvec[i].h_index + 95)) ); - } - } -#endif - - /* for each histogram peak, we now search back through the - * FFT peaks. A peak is a pitch if either there are several - * harmonics that match it, or else if (a) the fundamental is - * present, and (b) the sum of the powers of the contributing peaks - * is at least 1/100 of the total power. - * - * A peak is a contributor if its frequency is within 25 cents of - * a partial from 1 to 16. - * - * Finally, we have to be at least 5 bins in frequency, which - * corresponds to 2-1/5 periods fitting in the analysis window. - */ - - for (i = 0; i < npitch; i++) - { - t_float cumpow = 0, cumstrength = 0, freqnum = 0, freqden = 0; - int npartials = 0, nbelow8 = 0; - /* guessed-at frequency in bins */ - t_float putfreq = fexp((1.0 / BPERO_OVER_LOG2) * - (histvec[i].h_index + 96.0f)); - for (j = 0; j < npeak; j++) - { - t_float fpnum = peaklist[j].p_freq/putfreq; - int pnum = fpnum + 0.5f; - t_float fipnum = pnum; - t_float deviation; - if (pnum > 16 || pnum < 1) continue; - deviation = 1.0f - fpnum/fipnum; - if (deviation > -PARTIALDEVIANCE && deviation < PARTIALDEVIANCE) - { - /* - * we figure this is a partial since it's within 1/4 of - * a halftone of a multiple of the putative frequency. - */ - - t_float stdev, weight; - npartials++; - if (pnum < 8) nbelow8++; - cumpow += peaklist[j].p_pow; - cumstrength += fsqrt(fsqrt(peaklist[j].p_pow)); - stdev = (peaklist[j].p_width > MINBW ? - peaklist[j].p_width : MINBW); - weight = 1.0f / ((stdev*fipnum) * (stdev*fipnum)); - freqden += weight; - freqnum += weight * peaklist[j].p_freq/fipnum; -#if 1 - if (x->x_nprint) - { - post("peak %d partial %d f=%f w=%f", - j, pnum, peaklist[j].p_freq/fipnum, weight); - } -#endif - } -#if 1 - else if (x->x_nprint) post("peak %d partial %d dev %f", - j, pnum, deviation); -#endif - } - if ((nbelow8 < 4 || npartials < 7) && cumpow < 0.01f * total_power) - histvec[i].h_value = 0; - else - { - t_float pitchpow = (cumstrength * cumstrength) * - (cumstrength * cumstrength); - t_float freqinbins = freqnum/freqden; - /* check for minimum output frequency */ - - if (freqinbins < MINFREQINBINS) - histvec[i].h_value = 0; - else - { - /* we passed all tests... save the values we got */ - histvec[i].h_pitch = ftom(hzperbin * freqnum/freqden); - histvec[i].h_loud = (100.0f -DBFUDGE) + - (LOGTODB) * log(pitchpow/n); - } - } - } -#if 1 - if (x->x_nprint) - { - for (i = 0; i < npitch; i++) - { - if (histvec[i].h_value > 0) - post("index %d pit %f loud %f", histvec[i].h_index, - histvec[i].h_pitch, histvec[i].h_loud); - else post("-- cancelled --"); - } - } -#endif - - /* now try to find continuous pitch tracks that match the new - * pitches. First mark each peak unmatched. - */ - for (i = 0, hp1 = histvec; i < npitch; i++, hp1++) - hp1->h_used = 0; - - /* for each old pitch, try to match a new one to it. */ - for (i = 0, phist = x->x_hist; i < x->x_npitch; i++, phist++) - { - t_float thispitch = phist->h_pitches[oldphase]; - phist->h_pitch = 0; /* no output, thanks */ - phist->h_wherefrom = 0; - if (thispitch == 0.0f) continue; - for (j = 0, hp1 = histvec; j < npitch; j++, hp1++) - if ((hp1->h_value > 0) && hp1->h_pitch > thispitch - GLISS - && hp1->h_pitch < thispitch + GLISS) - { - phist->h_wherefrom = hp1; - hp1->h_used = 1; - } - } - for (i = 0, hp1 = histvec; i < npitch; i++, hp1++) - if ((hp1->h_value > 0) && !hp1->h_used) - { - for (j = 0, phist = x->x_hist; j < x->x_npitch; j++, phist++) - if (!phist->h_wherefrom) - { - phist->h_wherefrom = hp1; - phist->h_age = 0; - phist->h_noted = 0; - hp1->h_used = 1; - goto happy; - } - break; - happy: ; - } - /* copy the pitch info into the history vector */ - for (i = 0, phist = x->x_hist; i < x->x_npitch; i++, phist++) - { - if (phist->h_wherefrom) - { - phist->h_amps[newphase] = phist->h_wherefrom->h_loud; - phist->h_pitches[newphase] = - phist->h_wherefrom->h_pitch; - (phist->h_age)++; - } - else - { - phist->h_age = 0; - phist->h_amps[newphase] = phist->h_pitches[newphase] = 0; - } - } -#if 1 - if (x->x_nprint) - { - post("vibrato %d %f", x->x_vibbins, x->x_vibdepth); - for (i = 0, phist = x->x_hist; i < x->x_npitch; i++, phist++) - { - post("noted %f, age %d", phist->h_noted, phist->h_age); -#ifndef I860 - post("values %f %f %f %f %f", - phist->h_pitches[newphase], - phist->h_pitches[(newphase + HISTORY-1)%HISTORY], - phist->h_pitches[(newphase + HISTORY-2)%HISTORY], - phist->h_pitches[(newphase + HISTORY-3)%HISTORY], - phist->h_pitches[(newphase + HISTORY-4)%HISTORY]); -#endif - } - } -#endif - /* look for envelope attacks */ - - x->x_attackvalue = 0; - - if (x->x_peaked) - { - if (total_db > x->x_amphi) - { - int binlook = newphase - x->x_attackbins; - if (binlook < 0) binlook += HISTORY; - if (total_db > x->x_dbs[binlook] + x->x_attackthresh) - { - x->x_attackvalue = 1; - x->x_peaked = 0; - } - } - } - else - { - int binlook = newphase - x->x_attackbins; - if (binlook < 0) binlook += HISTORY; - if (x->x_dbs[binlook] > x->x_amphi && x->x_dbs[binlook] > total_db) - x->x_peaked = 1; - } - - /* for each current frequency track, test for a new note using a - * stability criterion. Later perhaps we should also do as in - * pitch~ and check for unstable notes a posteriori when - * there's a new attack with no note found since the last onset; - * but what's an attack &/or onset when we're polyphonic? - */ - - for (i = 0, phist = x->x_hist; i < x->x_npitch; i++, phist++) - { - /* - * if we've found a pitch but we've now strayed from it turn - * it off. - */ - if (phist->h_noted) - { - if (phist->h_pitches[newphase] > phist->h_noted + x->x_vibdepth - || phist->h_pitches[newphase] < phist->h_noted - x->x_vibdepth) - phist->h_noted = 0; - } - else - { - if (phist->h_wherefrom && phist->h_age >= x->x_vibbins) - { - t_float centroid = 0; - int not = 0; - for (j = 0, k = newphase; j < x->x_vibbins; j++) - { - centroid += phist->h_pitches[k]; - k--; - if (k < 0) k = HISTORY-1; - } - centroid /= x->x_vibbins; - for (j = 0, k = newphase; j < x->x_vibbins; j++) - { - /* calculate deviation from norm */ - t_float dev = centroid - phist->h_pitches[k]; - k--; - if (k < 0) k = HISTORY-1; - if (dev > x->x_vibdepth || - -dev > x->x_vibdepth) not = 1; - } - if (!not) - { - phist->h_pitch = phist->h_noted = centroid; - } - } - } - } - return; - -nopow: - for (i = 0; i < x->x_npitch; i++) - { - x->x_hist[i].h_pitch = x->x_hist[i].h_noted = - x->x_hist[i].h_pitches[newphase] = - x->x_hist[i].h_amps[newphase] = 0; - x->x_hist[i].h_age = 0; - } - x->x_peaked = 1; - x->x_dbage = 0; -} - -void sigfiddle_debug(t_sigfiddle *x) -{ - x->x_nprint = 1; -} - -void sigfiddle_print(t_sigfiddle *x) -{ - post("npoints %d,", 2 * x->x_hop); - post("amp-range %f %f,", x->x_amplo, x->x_amphi); - post("reattack %d %f,", x->x_attacktime, x->x_attackthresh); - post("vibrato %d %f", x->x_vibtime, x->x_vibdepth); - post("npartial %f", x->x_npartial); - post("auto %d", x->x_auto); -} - -void sigfiddle_amprange(t_sigfiddle *x, t_floatarg amplo, t_floatarg amphi) -{ - if (amplo < 0) amplo = 0; - if (amphi < amplo) amphi = amplo + 1; - x->x_amplo = amplo; - x->x_amphi = amphi; -} - -void sigfiddle_reattack(t_sigfiddle *x, - t_floatarg attacktime, t_floatarg attackthresh) -{ - if (attacktime < 0) attacktime = 0; - if (attackthresh <= 0) attackthresh = 1000; - x->x_attacktime = attacktime; - x->x_attackthresh = attackthresh; - x->x_attackbins = (x->x_sr * 0.001 * attacktime) / x->x_hop; - if (x->x_attackbins >= HISTORY) x->x_attackbins = HISTORY - 1; -} - -void sigfiddle_vibrato(t_sigfiddle *x, t_floatarg vibtime, t_floatarg vibdepth) -{ - if (vibtime < 0) vibtime = 0; - if (vibdepth <= 0) vibdepth = 1000; - x->x_vibtime = vibtime; - x->x_vibdepth = vibdepth; - x->x_vibbins = (x->x_sr * 0.001 * vibtime) / x->x_hop; - if (x->x_vibbins >= HISTORY) x->x_vibbins = HISTORY - 1; - if (x->x_vibbins < 1) x->x_vibbins = 1; -} - -void sigfiddle_npartial(t_sigfiddle *x, t_floatarg npartial) -{ - if (npartial < 0.1) npartial = 0.1; - x->x_npartial = npartial; -} - -void sigfiddle_auto(t_sigfiddle *x, t_floatarg f) -{ - x->x_auto = (f != 0); -} - -static void sigfiddle_freebird(t_sigfiddle *x) -{ - if (x->x_inbuf) - { - freebytes(x->x_inbuf, sizeof(t_float) * x->x_hop); - x->x_inbuf = 0; - } - if (x->x_lastanalysis) - { - freebytes(x->x_lastanalysis, - sizeof(t_float) * (2 * x->x_hop + 4 * FILTSIZE)); - x->x_lastanalysis = 0; - } - if (x->x_spiral) - { - freebytes(x->x_spiral, sizeof(t_float) * 2 * x->x_hop); - x->x_spiral = 0; - } - x->x_hop = 0; -} - -int sigfiddle_setnpoints(t_sigfiddle *x, t_floatarg fnpoints) -{ - int i, npoints = fnpoints; - sigfiddle_freebird(x); - if (npoints < MINPOINTS || npoints > MAXPOINTS) - { - error("fiddle~: npoints out of range; using %d", - npoints = DEFAULTPOINTS); - } - if (npoints != (1 << sigfiddle_ilog2(npoints))) - { - error("fiddle~: npoints not a power of 2; using %d", - npoints = (1 << sigfiddle_ilog2(npoints))); - } - x->x_hop = npoints >> 1; - if (!(x->x_inbuf = (t_float *)getbytes(sizeof(t_float) * x->x_hop))) - goto fail; - if (!(x->x_lastanalysis = (t_float *)getbytes( - sizeof(t_float) * (2 * x->x_hop + 4 * FILTSIZE)))) - goto fail; - if (!(x->x_spiral = (t_float *)getbytes(sizeof(t_float) * 2 * x->x_hop))) - goto fail; - for (i = 0; i < x->x_hop; i++) - x->x_inbuf[i] = 0; - for (i = 0; i < npoints + 4 * FILTSIZE; i++) - x->x_lastanalysis[i] = 0; - for (i = 0; i < x->x_hop; i++) - x->x_spiral[2*i] = cos((3.14159*i)/(npoints)), - x->x_spiral[2*i+1] = -sin((3.14159*i)/(npoints)); - x->x_phase = 0; - return (1); -fail: - sigfiddle_freebird(x); - return (0); -} - -int sigfiddle_doinit(t_sigfiddle *x, long npoints, long npitch, - long npeakanal, long npeakout) -{ - t_float *buf1, *buf2, *buf3; - t_peakout *buf4; - int i; - - if (!npeakanal && !npeakout) npeakanal = DEFNPEAK, npeakout = 0; - if (!npeakanal < 0) npeakanal = 0; - else if (npeakanal > MAXPEAK) npeakanal = MAXPEAK; - if (!npeakout < 0) npeakout = 0; - else if (npeakout > MAXPEAK) npeakout = MAXPEAK; - if (npitch <= 0) npitch = 0; - else if (npitch > MAXNPITCH) npitch = MAXNPITCH; - if (npeakanal && !npitch) npitch = 1; - if (!npoints) - npoints = DEFAULTPOINTS; - if (!sigfiddle_setnpoints(x, npoints)) - { - error("fiddle~: out of memory"); - return (0); - } - if (!(buf4 = (t_peakout *)getbytes(sizeof(*buf4) * npeakout))) - { - sigfiddle_freebird(x); - error("fiddle~: out of memory"); - return (0); - } - for (i = 0; i < npeakout; i++) - buf4[i].po_freq = buf4[i].po_amp = 0; - x->x_peakbuf = buf4; - - x->x_npeakout = npeakout; - x->x_npeakanal = npeakanal; - x->x_phase = 0; - x->x_histphase = 0; - x->x_sr = 44100; /* this and the next are filled in later */ - for (i = 0; i < MAXNPITCH; i++) - { - int j; - x->x_hist[i].h_pitch = x->x_hist[i].h_noted = 0; - x->x_hist[i].h_age = 0; - x->x_hist[i].h_wherefrom = 0; - x->x_hist[i].h_outlet = 0; - for (j = 0; j < HISTORY; j++) - x->x_hist[i].h_amps[j] = x->x_hist[i].h_pitches[j] = 0; - } - x->x_nprint = 0; - x->x_npitch = npitch; - for (i = 0; i < HISTORY; i++) x->x_dbs[i] = 0; - x->x_dbage = 0; - x->x_peaked = 0; - x->x_auto = 1; - x->x_amplo = DEFAMPLO; - x->x_amphi = DEFAMPHI; - x->x_attacktime = DEFATTACKTIME; - x->x_attackbins = 1; /* real value calculated afterward */ - x->x_attackthresh = DEFATTACKTHRESH; - x->x_vibtime = DEFVIBTIME; - x->x_vibbins = 1; /* real value calculated afterward */ - x->x_vibdepth = DEFVIBDEPTH; - x->x_npartial = 7; - x->x_attackvalue = 0; - return (1); -} - - /* formalities for JMAX */ - -#ifdef JMAX - -void sigfiddle_debug13(fts_object_t *o, int winlet, fts_symbol_t s, int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - sigfiddle_debug(x); -} - -void sigfiddle_print13(fts_object_t *o, int winlet, fts_symbol_t s, - int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - sigfiddle_print(x); -} - -void sigfiddle_amprange13(fts_object_t *o, int winlet, fts_symbol_t s, - int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - t_float lo = (t_float) fts_get_float_arg(ac, at, 0, 0); - t_float hi = (t_float) fts_get_float_arg(ac, at, 1, 0); - sigfiddle_amprange(x, lo, hi); -} - -void sigfiddle_reattack13(fts_object_t *o, int winlet, fts_symbol_t s, - int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - long msec = fts_get_float_arg(ac, at, 0, 0); - t_float db = (t_float) fts_get_float_arg(ac, at, 1, 0); - sigfiddle_reattack(x, msec, db); -} - -void sigfiddle_vibrato13(fts_object_t *o, int winlet, fts_symbol_t s, - int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - long msec = fts_get_float_arg(ac, at, 0, 0); - t_float halftones = (t_float) fts_get_float_arg(ac, at, 1, 0); - sigfiddle_vibrato(x, msec, halftones); -} - -void sigfiddle_npartial13(fts_object_t *o, int winlet, fts_symbol_t s, - int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - t_float npartial = (t_float) fts_get_float_arg(ac, at, 0, 0); - sigfiddle_npartial(x, npartial); -} - - -void ftl_sigfiddle(fts_word_t *a) -{ - t_sigfiddle *x = (t_sigfiddle *)fts_word_get_long(a); - t_float *in = (t_float *)fts_word_get_long(a + 1); - long n_tick = fts_word_get_long(a + 2); - - int count; - t_float *fp, *fp2; - for (count = 0, fp = x->x_inbuf + x->x_phase; - count < n_tick; count++) *fp++ = *in++; - if (fp == x->x_inbuf + x->x_hop) - { - sigfiddle_doit(x); - x->x_phase = 0; - fts_alarm_set_delay(&x->x_clock, 0L); /* output bang */ - fts_alarm_arm(&x->x_clock); - - if (x->x_nprint) x->x_nprint--; - } - else x->x_phase += n_tick; -} - -void sigfiddle_put(fts_object_t *o, int winlet, fts_symbol_t *s, int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - fts_dsp_descr_t *dsp = (fts_dsp_descr_t *)fts_get_long_arg(ac, at, 0, 0); - fts_atom_t a[3]; - - x->x_sr = fts_dsp_get_input_srate(dsp, 0); - sigfiddle_reattack(x, x->x_attacktime, x->x_attackthresh); - sigfiddle_vibrato(x, x->x_vibtime, x->x_vibdepth); - - fts_set_long(a, (long)x); - fts_set_symbol(a+1, fts_dsp_get_input_name(dsp, 0)); - fts_set_long(a+2, fts_dsp_get_input_size(dsp, 0)); - dsp_add_funcall(dsp_symbol, 3, a); -} - -void sigfiddle_tick(fts_alarm_t *alarm, void *p) -{ - fts_object_t *o = (fts_object_t *)p; - t_sigfiddle *x = (t_sigfiddle *)p; - - int i; - t_pitchhist *ph; - fts_outlet_float(o, OUTLETpower, x->x_dbs[x->x_histphase]); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - { - fts_atom_t at[2]; - fts_set_float(at, ph->h_pitches[x->x_histphase]); - fts_set_float(at+1, ph->h_amps[x->x_histphase]); - fts_outlet_list(o, OUTLETmicropitch3 - i, 2, at); - } - if (x->x_attackvalue) fts_outlet_bang(o, OUTLETattack); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - if (ph->h_pitch) fts_outlet_float(o, OUTLETpitch, ph->h_pitch); -} - -static void sigfiddle_delete(fts_object_t *o, int winlet, fts_symbol_t *s, int ac, - const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - - fts_free(x->x_inbuf); - fts_free(x->x_lastanalysis); - fts_free(x->x_spiral); - dsp_list_remove(o); -} - -static void sigfiddle_init(fts_object_t *o, int winlet, fts_symbol_t *s, int ac, const fts_atom_t *at) -{ - t_sigfiddle *x = (t_sigfiddle *)o; - t_float *buf1, *buf2, *buf3; - int i, hop; - long npoints = fts_get_long_arg(ac, at, 1, 0); - long npitch = fts_get_long_arg(ac, at, 2, 0); - long npeakanal = fts_get_long_arg(ac, at, 3, 0); - long npeakout = fts_get_long_arg(ac, at, 4, 0); - - if (!sigfiddle_doinit(x, npoints, npitch, npeakanal, npeakout)) - { - post("fiddle~: initialization failed"); - return; - } - hop = npoints>>1; - if (fts_fft_declaresize(hop) != fts_Success) - post("fiddle~: bad FFT size"); - - fts_alarm_init(&(x->x_clock), 0, sigfiddle_tick, x); - dsp_list_insert(o); -} - -static fts_status_t sigfiddle_instantiate(fts_class_t *cl, int ac, - const fts_atom_t *at) -{ - int i; - fts_type_t a[5]; - - fts_class_init(cl, sizeof(t_sigfiddle), 1, 6, 0); /* 1 inlet + 6 outlets */ - - /* the system methods */ - - a[0] = fts_Symbol; - a[1] = fts_Long | fts_OptArg; - a[2] = fts_Long | fts_OptArg; - fts_method_define(cl, fts_SystemInlet, fts_s_init, sigfiddle_init, 3, a); - - fts_method_define(cl, fts_SystemInlet, fts_s_delete, sigfiddle_delete, 0, a); - a[0] = fts_Object; - fts_method_define(cl, fts_SystemInlet, fts_s_put, sigfiddle_put, 1, a); - - /* class' own methods */ - fts_method_define(cl, 0, fts_new_symbol("print"), sigfiddle_print13, 0, a); - fts_method_define(cl, 0, fts_new_symbol("debug"), sigfiddle_debug13, 0, a); - fts_method_define(cl, 0, fts_new_symbol("amp-range"), sigfiddle_amprange13, - 0, a); - fts_method_define(cl, 0, fts_new_symbol("reattack"), sigfiddle_reattack13, - 0, a); - fts_method_define(cl, 0, fts_new_symbol("vibrato"), sigfiddle_vibrato13, - 0, a); - fts_method_define(cl, 0, fts_new_symbol("npartial"), sigfiddle_npartial13, - 0, a); - - /* classes signal inlets */ - dsp_sig_inlet(cl, 0); /* declare signal input #0 */ - - /* classes outlets */ - a[0] = fts_Float; - fts_outlet_type_define(cl, OUTLETpitch, fts_s_float, 1, a); /* declare outlet #0 */ - fts_outlet_type_define(cl, OUTLETattack, fts_s_bang, 0, a); /* declare outlet #1 */ - a[0] = fts_VarArgs; - fts_outlet_type_define(cl, OUTLETmicropitch1, fts_s_list, 1, a); /* declare outlet #2 */ - fts_outlet_type_define(cl, OUTLETmicropitch2, fts_s_list, 1, a); /* declare outlet #3 */ - fts_outlet_type_define(cl, OUTLETmicropitch3, fts_s_list, 1, a); /* declare outlet #4 */ - a[0] = fts_Float; - fts_outlet_type_define(cl, OUTLETpower, fts_s_float, 1, a); /* declare outlet #5 */ - - dsp_symbol = fts_new_symbol("fiddle"); - dsp_declare_function(dsp_symbol, ftl_sigfiddle); - - /* DSP properties */ - - fts_class_put_prop(cl, fts_s_dsp_is_sink, fts_true); - - return(fts_Success); -} - -void fiddle_config(void) -{ - sys_log(fiddle_version); - fts_metaclass_create(fts_new_symbol(CLASSNAME), sigfiddle_instantiate, fts_always_equiv); -} - -fts_module_t fiddle_module = - {"fiddle", "sonic meat fiddle", fiddle_config, 0}; - -#endif /* JMAX */ - -#ifdef PD - -static t_int *fiddle_perform(t_int *w) -{ - t_float *in = (t_float *)(w[1]); - t_sigfiddle *x = (t_sigfiddle *)(w[2]); - int n = (int)(w[3]); - int count; - t_float *fp; - if (!x->x_hop) - goto nono; - for (count = 0, fp = x->x_inbuf + x->x_phase; count < n; count++) - *fp++ = *in++; - if (fp == x->x_inbuf + x->x_hop) - { - sigfiddle_doit(x); - x->x_phase = 0; - if (x->x_auto) clock_delay(x->x_clock, 0L); - if (x->x_nprint) x->x_nprint--; - } - else x->x_phase += n; -nono: - return (w+4); -} - -void sigfiddle_dsp(t_sigfiddle *x, t_signal **sp) -{ - x->x_sr = sp[0]->s_sr; - sigfiddle_reattack(x, x->x_attacktime, x->x_attackthresh); - sigfiddle_vibrato(x, x->x_vibtime, x->x_vibdepth); - dsp_add(fiddle_perform, 3, sp[0]->s_vec, x, sp[0]->s_n); -} - - /* This is the callback function for the clock, but also acts as - the "bang" method; you can leave "auto" on to get this called - automatically (the default) or turn auto off and bang it yourself. */ - -void sigfiddle_bang(t_sigfiddle *x) -{ - int i; - t_pitchhist *ph; - if (x->x_npeakout) - { - int npeakout = x->x_npeakout; - t_peakout *po; - for (i = 0, po = x->x_peakbuf; i < npeakout; i++, po++) - { - t_atom at[3]; - SETFLOAT(at, i+1); - SETFLOAT(at+1, po->po_freq); - SETFLOAT(at+2, po->po_amp); - outlet_list(x->x_peakout, 0, 3, at); - } - } - outlet_float(x->x_envout, x->x_dbs[x->x_histphase]); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - { - t_atom at[2]; - SETFLOAT(at, ph->h_pitches[x->x_histphase]); - SETFLOAT(at+1, ph->h_amps[x->x_histphase]); - outlet_list(ph->h_outlet, 0, 2, at); - } - if (x->x_attackvalue) outlet_bang(x->x_attackout); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - if (ph->h_pitch) outlet_float(x->x_noteout, ph->h_pitch); -} - -void sigfiddle_ff(t_sigfiddle *x) /* cleanup on free */ -{ - if (x->x_inbuf) - { - freebytes(x->x_inbuf, sizeof(t_float) * x->x_hop); - freebytes(x->x_lastanalysis, sizeof(t_float) * (2*x->x_hop + 4 * FILTSIZE)); - freebytes(x->x_spiral, sizeof(t_float) * 2*x->x_hop); - freebytes(x->x_peakbuf, sizeof(*x->x_peakbuf) * x->x_npeakout); - clock_free(x->x_clock); - } -} - -static t_class *sigfiddle_class; - -void *sigfiddle_new(t_floatarg npoints, t_floatarg npitch, - t_floatarg fnpeakanal, t_floatarg fnpeakout) -{ - t_sigfiddle *x = (t_sigfiddle *)pd_new(sigfiddle_class); - int i; - int npeakanal = fnpeakanal, npeakout = fnpeakout; - - - if (!sigfiddle_doinit(x, npoints, npitch, - npeakanal, npeakout)) - { - x->x_inbuf = 0; /* prevent the free routine from cleaning up */ - pd_free(&x->x_ob.ob_pd); - return (0); - } - x->x_noteout = outlet_new(&x->x_ob, gensym("float")); - x->x_attackout = outlet_new(&x->x_ob, gensym("bang")); - for (i = 0; i < x->x_npitch; i++) - x->x_hist[i].h_outlet = outlet_new(&x->x_ob, gensym("list")); - x->x_envout = outlet_new(&x->x_ob, gensym("float")); - if (x->x_npeakout) - x->x_peakout = outlet_new(&x->x_ob, gensym("list")); - else x->x_peakout = 0; - x->x_clock = clock_new(&x->x_ob.ob_pd, (t_method)sigfiddle_bang); - return (x); -} - -void fiddle_tilde_setup(void) -{ - sigfiddle_class = class_new(gensym("fiddle~"), (t_newmethod)sigfiddle_new, - (t_method)sigfiddle_ff, sizeof(t_sigfiddle), 0, - A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_dsp, - gensym("dsp"), 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_debug, - gensym("debug"), 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_setnpoints, - gensym("npoints"), A_FLOAT, 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_amprange, - gensym("amp-range"), A_FLOAT, A_FLOAT, 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_reattack, - gensym("reattack"), A_FLOAT, A_FLOAT, 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_vibrato, - gensym("vibrato"), A_FLOAT, A_FLOAT, 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_npartial, - gensym("npartial"), A_FLOAT, 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_auto, - gensym("auto"), A_FLOAT, 0); - class_addmethod(sigfiddle_class, (t_method)sigfiddle_print, - gensym("print"), 0); - class_addmethod(sigfiddle_class, nullfn, gensym("signal"), 0); - class_addbang(sigfiddle_class, sigfiddle_bang); - class_addcreator((t_newmethod)sigfiddle_new, gensym("fiddle"), - A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); - post(fiddle_version); -} - -void fiddle_setup(void) -{ - fiddle_tilde_setup(); -} -#endif /* PD */ - -#ifdef MAX26 - -void cu_fiddle(t_float *in1, t_sigfiddle *x, int n) -{ - int count; - t_float *fp, *fp2; - for (count = 0, fp = x->x_inbuf + x->x_phase; - count < n; count++) *fp++ = *in1++; - if (fp == x->x_inbuf + x->x_hop) - { - sigfiddle_doit(x); - x->x_phase = 0; - if (x->x_auto) clock_delay(x->x_clock, 0L); - if (x->x_nprint) x->x_nprint--; - } - else x->x_phase += n; -} - -void sigfiddle_put(t_sigfiddle *x, long whether) -{ - if (whether) - { - u_stdout(x); - x->x_sr = x->x_io[0]->s_sr; - sigfiddle_reattack(x, x->x_attacktime, x->x_attackthresh); - sigfiddle_vibrato(x, x->x_vibtime, x->x_vibdepth); - dspchain_addc(cu_fiddle, 3, - x->x_io[0]->s_shit, x, x->x_io[0]->s_n); - } -} - -void sigfiddle_tick(t_sigfiddle *x) /* callback function for the clock */ -{ - int i; - t_pitchhist *ph; - outlet_float(x->x_envout, x->x_dbs[x->x_histphase]); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - { - t_atom at[2]; - SETFLOAT(at, ph->h_pitches[x->x_histphase]); - SETFLOAT(at+1, ph->h_amps[x->x_histphase]); - outlet_list(ph->h_outlet, NIL, 2, at); - } - if (x->x_attackvalue) outlet_bang(x->x_attackout); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - if (ph->h_pitch) outlet_float(x->x_noteout, ph->h_pitch); -} - -void sigfiddle_ff(t_sigfiddle *x) /* cleanup on free */ -{ - if (x->x_inbuf) - { - freebytes(x->x_inbuf, sizeof(t_float) * x->x_hop); - freebytes(x->x_lastanalysis, sizeof(t_float) * (2*x->x_hop + 4 * FILTSIZE)); - freebytes(x->x_spiral, sizeof(t_float) * 2*x->x_hop); - clock_free(x->x_clock); - u_clean(x); - } -} - -t_externclass *sigfiddle_class; - -void *sigfiddle_new(long npoints, long npitch, - long npeakanal, long npeakout) -{ - t_sigfiddle *x = (t_sigfiddle *)obj_new(&sigfiddle_class, 0); - int i; - - if (!sigfiddle_doinit(x, npoints, npitch, npeakanal, npeakout)) - { - x->x_inbuf = 0; /* prevent the free routine from cleaning up */ - obj_free(x); - return (0); - } - u_setup(x, IN1, OUT0); - x->x_envout = outlet_new(x, gensym("float")); - for (i = 0; i < x->x_npitch; i++) - x->x_hist[i].h_outlet = outlet_new(x, gensym("list")); - x->x_attackout = outlet_new(x, gensym("bang")); - x->x_noteout = outlet_new(x, gensym("float")); - x->x_clock = clock_new(x, sigfiddle_tick); - return (x); -} - -void fiddle_setup() -{ - c_extern(&sigfiddle_class, sigfiddle_new, sigfiddle_ff, - gensym("fiddle"), sizeof(t_sigfiddle), 0, A_DEFLONG, A_DEFLONG, - A_DEFLONG, A_DEFLONG, 0); - c_addmess(sigfiddle_put, gensym("put"), A_CANT, 0); - c_addmess(sigfiddle_debug, gensym("debug"), 0); - c_addmess(sigfiddle_amprange, gensym("amp-range"), A_FLOAT, A_FLOAT, 0); - c_addmess(sigfiddle_reattack, gensym("reattack"), A_FLOAT, A_FLOAT, 0); - c_addmess(sigfiddle_vibrato, gensym("vibrato"), A_LONG, A_FLOAT, 0); - c_addmess(sigfiddle_npartial, gensym("npartial"), A_FLOAT, 0); - c_addmess(sigfiddle_print, gensym("print"), 0); - u_inletmethod(0); /* one signal input */ -#ifdef MAX - post(fiddle_version); -#endif -} - -#endif /* MAX26 */ - -/************* Beginning of MSP Code ******************************/ - -#ifdef MSP - -static t_int *fiddle_perform(t_int *w) -{ - t_float *in = (t_float *)(w[1]); - t_sigfiddle *x = (t_sigfiddle *)(w[2]); - int n = (int)(w[3]); - int count,inc = x->x_downsample; - t_float *fp; - - if (x->x_obj.z_disabled) - goto skip; - for (count = 0, fp = x->x_inbuf + x->x_phase; count < n; count+=inc) { - *fp++ = *in; - in += inc; - } - if (fp == x->x_inbuf + x->x_hop) - { - sigfiddle_doit(x); - x->x_phase = 0; - if (x->x_auto) clock_delay(x->x_clock, 0L); - if (x->x_nprint) x->x_nprint--; - } - else x->x_phase += n; -skip: - return (w+4); -} - -void sigfiddle_dsp(t_sigfiddle *x, t_signal **sp) -{ - if (sp[0]->s_n > x->x_hop) { - x->x_downsample = sp[0]->s_n / x->x_hop; - post("* warning: fiddle~: will downsample input by %ld",x->x_downsample); - x->x_sr = sp[0]->s_sr / x->x_downsample; - } else { - x->x_downsample = 1; - x->x_sr = sp[0]->s_sr; - } - sigfiddle_reattack(x, x->x_attacktime, x->x_attackthresh); - sigfiddle_vibrato(x, x->x_vibtime, x->x_vibdepth); - dsp_add(fiddle_perform, 3, sp[0]->s_vec, x, sp[0]->s_n); -} - -void sigfiddle_tick(t_sigfiddle *x) /* callback function for the clock MSP*/ -{ - int i; - t_pitchhist *ph; - if (x->x_npeakout) - { - int npeakout = x->x_npeakout; - t_peakout *po; - for (i = 0, po = x->x_peakbuf; i < npeakout; i++, po++) - { - t_atom at[3]; - SETINT(at, i+1); - SETFLOAT(at+1, po->po_freq); - SETFLOAT(at+2, po->po_amp); - outlet_list(x->x_peakout, 0, 3, at); - } - } - outlet_float(x->x_envout, x->x_dbs[x->x_histphase]); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - { - t_atom at[2]; - SETFLOAT(at, ph->h_pitches[x->x_histphase]); - SETFLOAT(at+1, ph->h_amps[x->x_histphase]); - outlet_list(ph->h_outlet, 0, 2, at); - } - if (x->x_attackvalue) outlet_bang(x->x_attackout); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - if (ph->h_pitch) outlet_float(x->x_noteout, ph->h_pitch); -} - -void sigfiddle_bang(t_sigfiddle *x) -{ - int i; - t_pitchhist *ph; - if (x->x_npeakout) - { - int npeakout = x->x_npeakout; - t_peakout *po; - for (i = 0, po = x->x_peakbuf; i < npeakout; i++, po++) - { - t_atom at[3]; - SETLONG(at, i+1); - SETFLOAT(at+1, po->po_freq); - SETFLOAT(at+2, po->po_amp); - outlet_list(x->x_peakout, 0, 3, at); - } - } - outlet_float(x->x_envout, x->x_dbs[x->x_histphase]); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - { - t_atom at[2]; - SETFLOAT(at, ph->h_pitches[x->x_histphase]); - SETFLOAT(at+1, ph->h_amps[x->x_histphase]); - outlet_list(ph->h_outlet, 0, 2, at); - } - if (x->x_attackvalue) outlet_bang(x->x_attackout); - for (i = 0, ph = x->x_hist; i < x->x_npitch; i++, ph++) - if (ph->h_pitch) outlet_float(x->x_noteout, ph->h_pitch); -} - - -void sigfiddle_ff(t_sigfiddle *x) /* cleanup on free MSP */ -{ - - if (x->x_inbuf) - { - t_freebytes(x->x_inbuf, sizeof(t_float) * x->x_hop); - t_freebytes(x->x_lastanalysis, sizeof(t_float) * (2*x->x_hop + 4 * -FILTSIZE)); - t_freebytes(x->x_spiral, sizeof(t_float) * 2*x->x_hop); - t_freebytes(x->x_peakbuf, sizeof(*x->x_peakbuf) * x->x_npeakout); - } - dsp_free((t_pxobject *)x); -} - -void *sigfiddle_class; - -void *sigfiddle_new(long npoints, long npitch, - long npeakanal, long npeakout) -{ - t_sigfiddle *x = (t_sigfiddle *)newobject(sigfiddle_class); - int i; - - if (!sigfiddle_doinit(x, npoints, npitch, npeakanal, npeakout)) - { - x->x_inbuf = 0; /* prevent the free routine from cleaning up */ - return (0); - } - dsp_setup((t_pxobject *)x,1); - - x->x_clock = clock_new(x, (method)sigfiddle_tick); - if (x->x_npeakout) - x->x_peakout = listout((t_object *)x); - else x->x_peakout = 0; - x->x_envout = floatout((t_object *)x); - for (i = 0; i < x->x_npitch; i++) - x->x_hist[i].h_outlet = listout((t_object *)x); - x->x_attackout = bangout((t_object *)x); - x->x_noteout = floatout((t_object *)x); - return (x); - - -} - -void main() -{ - setup(&sigfiddle_class, sigfiddle_new, (method)sigfiddle_ff, - (short)sizeof(t_sigfiddle), 0L, A_DEFLONG, A_DEFLONG, -A_DEFLONG, A_DEFLONG, 0); - addmess((method)sigfiddle_dsp, "dsp", - A_CANT, 0); - addmess((method)sigfiddle_debug, "debug", 0); - addmess((method)sigfiddle_setnpoints, "npoints", A_FLOAT, 0); - addmess((method)sigfiddle_amprange, "amp-range", A_FLOAT, A_FLOAT, 0); - addmess((method)sigfiddle_reattack, "reattack", A_FLOAT, A_FLOAT, 0); - addmess((method)sigfiddle_vibrato, "vibrato", A_FLOAT, -A_FLOAT, 0); - addmess((method)sigfiddle_npartial, "npartial", A_FLOAT, 0); - addmess((method)sigfiddle_auto, "auto", - A_FLOAT, 0); - addmess((method)sigfiddle_print, "print", 0); - addmess((method)sigfiddle_assist, "assist", - A_CANT, 0); - addbang((method)sigfiddle_bang); - dsp_initclass(); - rescopy('STR#',3748); - post(fiddle_version); -} - -void sigfiddle_assist(t_sigfiddle *x, void *b, long m, long a, char *s) -{ - assist_string(3748,m,a,1,2,s); -} - -void msp_fft(t_float *buf, long np, long inv) -{ - t_float *src,*real,*rp,*imag,*ip; - long i; - - /* - // because this fft algorithm uses separate real and imaginary - // buffers - // we must split the real and imaginary parts into two buffers, - // then do the opposite on output - // a more ambitious person would either do an in-place conversion - // or rewrite the fft algorithm - */ - - real = rp = msp_ffttemp; - imag = ip = real + MAXPOINTS; - src = buf; - for (i = 0; i < np; i++) { - *rp++ = *src++; - *ip++ = *src++; - } - if (inv) - ifft(np,real,imag); - else - fft(np,real,imag); - rp = real; - ip = imag; - src = buf; - for (i = 0; i < np; i++) { - *src++ = *rp++; - *src++ = *ip++; - } -} - -#endif /* MSP */ |