added missing tildes

svn path=/trunk/; revision=81

1 files changed, 1818 insertions, 0 deletions

diff --git a/pd/extra/fiddle~/fiddle~.c b/pd/extra/fiddle~/fiddle~.c
new file mode 100644
index 00000000..373a43eb
--- /dev/null
+++ b/pd/extra/fiddle~/fiddle~.c
@@ -0,0 +1,1818 @@
+/* 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.
+ *
+ */
+
+#ifdef NT
+#define flog log
+#define fexp exp
+#define fsqrt sqrt
+#pragma warning (disable: 4305 4244)
+#else
+#define flog log
+#define fexp exp
+#define fsqrt sqrt
+#endif
+
+char fiddle_version[] = "fiddle version 1.1 TEST3";
+
+#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	// this is a guess based on MAX26
+#include "ext.h"
+#include "z_dsp.h"
+#include "fft_mayer.proto.h"
+//#include "fiddle_header.h"
+//  #include "MacHeaders.h"
+//#include <MacHeadersPPC>
+
+//#include "fiddledoit.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 (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 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(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 ((float)(.5 * 1.227054))
+#define FILT2 ((float)(.5 * -0.302385))
+#define FILT3 ((float)(.5 * 0.095326))
+#define FILT4 ((float)(.5 * -0.022748))
+#define FILT5 ((float)(.5 * 0.002533))
+#define FILTSIZE 5
+
+typedef struct peakout	    /* a peak for output */
+{
+    float po_freq;		    /* frequency in hz */
+    float po_amp;	    	    /* amplitude */
+} t_peakout;
+
+typedef struct peak 	    /* a peak for analysis */
+{
+    float p_freq;		    /* frequency in bins */
+    float p_width;		    /* peak width in bins */
+    float p_pow;		    /* peak power */
+    float p_loudness;	    	    /* 4th root of power */
+    float *p_fp;		    /* pointer back to spectrum */
+} t_peak;
+
+typedef struct histopeak
+{
+    float h_pitch;		    /* estimated pitch */
+    float h_value;		    /* value of peak */
+    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 */
+{
+    float h_pitch;		    /* pitch to output */
+    float h_amps[HISTORY];	    /* past amplitudes */
+    float h_pitches[HISTORY];	    /* past pitches */
+    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
+    float *x_inbuf;		    /* buffer to analyze, npoints/2 elems */
+    float *x_lastanalysis;	    /* FT of last buffer (see main comment) */
+    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 */
+    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 */
+    float x_dbs[HISTORY];	    /* DB history, indexed by "histphase" */
+    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 */
+    float x_amplo;
+    float x_amphi;
+    int x_attacktime;
+    int x_attackbins;
+    float x_attackthresh;
+    int x_vibtime;
+    int x_vibbins;
+    float x_vibdepth;
+    float x_npartial;
+/* outlets & clock */
+    void *x_envout;
+    int x_attackvalue;
+    void *x_attackout;
+    void *x_noteout;
+    void *x_peakout;
+} t_sigfiddle;
+
+#if CHECKER
+float fiddle_checker[1024];
+#endif
+
+#ifdef MSP
+// Mac compiler requires prototypes for everything
+
+int sigfiddle_ilog2(int n);
+float fiddle_mtof(float f);
+float fiddle_ftom(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);
+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);
+void *sigfiddle_new(long npoints, long npitch,
+    long npeakanal, long npeakout);
+void msp_fft(float *buf, long np, long inv);
+float msp_ffttemp[MAXPOINTS*2];
+int errno;
+#endif
+
+int sigfiddle_ilog2(int n)
+{
+    int ret = -1;
+    while (n)
+    {
+	n >>= 1;
+	ret++;
+    }
+    return (ret);
+}
+
+float fiddle_mtof(float f)
+{
+	return (8.17579891564 * exp(.0577622650 * f));
+}
+
+float fiddle_ftom(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 float spect1[4*MAXPOINTS];
+    static float spect2[MAXPOINTS + 4*FILTSIZE];
+#else
+    float spect1[4*MAXPOINTS];
+    float spect2[MAXPOINTS + 4*FILTSIZE];
+#endif
+#if CHECKER
+    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;
+    float *fp, *fp1, *fp2, *fp3, total_power, total_loudness, total_db;
+    float maxbin = BINPEROCT * (logn-2),  *histogram = spect2 + BINGUARD;
+    t_pitchhist *phist;
+    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++)
+    {
+	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)
+    {
+	float re = fp1[0] - 0.5f * (fp1[-8] + fp1[8]);
+	float im = fp1[1] - 0.5f * (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)
+    {
+	float height = fp[2], h1 = fp[-2], h2 = fp[6];
+	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++)
+    {
+    	float loudness = pk1->p_loudness;
+    	if (i >= npeakout) break;
+    	pk2->po_freq = hzperbin * pk1->p_freq;
+    	pk2->po_amp = (2.f / (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++)
+    {
+	float pit = BPERO_OVER_LOG2 * flog(pk1->p_freq) - 96.0f;
+	float binbandwidth = FACTORTOBINS * pk1->p_width/pk1->p_freq;
+	float putbandwidth = (binbandwidth < 2 ? 2 : binbandwidth);
+	float weightbandwidth = (binbandwidth < 1.0f ? 1.0f : binbandwidth);
+	/* float weightamp = 1.0f + 3.0f * pk1->p_pow / pow; */
+	float weightamp = 4. * pk1->p_loudness / total_loudness;
+	for (j = 0, fp2 = sigfiddle_partialonset; j < NPARTIALONSET; j++, fp2++)
+	{
+	    float bin = pit - *fp2;
+	    if (bin < maxbin)
+	    {
+		float para, pphase, score = 30.0f * 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++)
+	{
+	    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 index;
+	float best;
+	if (npitch)
+	{
+	    for (best = 0, index = -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;
+		    }
+		    index = j;
+		    best = histogram[j];
+		}
+	    peaknogood: ;
+	    }
+	}
+	else
+	{
+	    for (best = 0, index = -1, j=0; j < maxbin; j++)
+		if (histogram[j] > best)
+		    index = j,  best = histogram[j];
+	}
+	if (index < 0) break;
+	histvec[npitch].h_value = best;
+	histvec[npitch].h_index = index;
+    }
+#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++)
+    {
+	float cumpow = 0, cumstrength = 0, freqnum = 0, freqden = 0;
+	int npartials = 0,  nbelow8 = 0;
+	    /* guessed-at frequency in bins */
+	float putfreq = fexp((1.0f / BPERO_OVER_LOG2) *
+	    (histvec[i].h_index + 96.0f));
+	for (j = 0; j < npeak; j++)
+	{
+	    float fpnum = peaklist[j].p_freq/putfreq;
+	    int pnum = fpnum + 0.5f;
+	    float fipnum = pnum;
+	    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.
+		 */
+
+		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
+	{
+	    float pitchpow = (cumstrength * cumstrength) *
+		(cumstrength * cumstrength);
+    	    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++)
+    {
+	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)
+	    {
+		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 */
+		    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("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);
+}
+
+int sigfiddle_doinit(t_sigfiddle *x, long npoints, long npitch,
+    long npeakanal, long npeakout)
+{
+    float *buf1, *buf2,  *buf3;
+    t_peakout *buf4;
+    int i, hop;
+
+    if (npoints < MINPOINTS || npoints > MAXPOINTS) npoints = DEFAULTPOINTS;
+    npoints = 1 << sigfiddle_ilog2(npoints);
+    hop = npoints>>1;
+    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 (!(buf1 = (float *)getbytes(sizeof(float) * hop)))
+    {
+	error("fiddle~: out of memory");
+	return (0);
+    }
+    if (!(buf2 = (float *)getbytes(sizeof(float) * (npoints + 4 * FILTSIZE))))
+    {
+	freebytes(buf1, sizeof(float) * hop);
+	error("fiddle~: out of memory");
+	return (0);
+    }
+    if (!(buf3 = (float *)getbytes(sizeof(float) * npoints)))
+    {
+	freebytes(buf1, sizeof(float) * hop);
+	freebytes(buf2, sizeof(float) * (npoints + 4 * FILTSIZE));
+	error("fiddle~: out of memory");
+	return (0);
+    }
+    if (!(buf4 = (t_peakout *)getbytes(sizeof(*buf4) * npeakout)))
+    {
+	freebytes(buf1, sizeof(float) * hop);
+	freebytes(buf2, sizeof(float) * (npoints + 4 * FILTSIZE));
+	freebytes(buf3, sizeof(float) * npoints);
+	error("fiddle~: out of memory");
+	return (0);
+    }
+    for (i = 0; i < hop; i++) buf1[i] = 0;
+    for (i = 0; i < npoints + 4 * FILTSIZE; i++) buf2[i] = 0;
+    for (i = 0; i < hop; i++)
+	buf3[2*i] =    cos((3.14159*i)/(npoints)),
+	buf3[2*i+1] = -sin((3.14159*i)/(npoints));
+    for (i = 0; i < npeakout; i++)
+	buf4[i].po_freq = buf4[i].po_amp = 0;
+    x->x_inbuf = buf1;
+    x->x_lastanalysis = buf2;
+    x->x_spiral = buf3;
+    x->x_peakbuf = buf4;
+
+    x->x_npeakout = npeakout;
+    x->x_npeakanal = npeakanal;
+    x->x_phase = 0;
+    x->x_histphase = 0;
+    x->x_hop = npoints>>1;
+    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;
+    float lo =  (float) fts_get_float_arg(ac, at, 0, 0);
+    float hi =  (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);
+    float db =  (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);
+    float halftones =  (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;
+    float npartial =  (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);
+    float *in = (float *)fts_word_get_long(a + 1);
+    long n_tick = fts_word_get_long(a + 2);
+
+    int count;
+    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;
+    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;
+    float *fp;
+    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;
+    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(float) * x->x_hop);
+    	freebytes(x->x_lastanalysis, sizeof(float) * (2*x->x_hop + 4 * FILTSIZE));
+    	freebytes(x->x_spiral, sizeof(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_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(float *in1, t_sigfiddle *x, int n)
+{
+    int count;
+    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(float) * x->x_hop);
+    	freebytes(x->x_lastanalysis, sizeof(float) * (2*x->x_hop + 4 * FILTSIZE));
+    	freebytes(x->x_spiral, sizeof(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;
+    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)			// 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];
+	    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(float) * x->x_hop);
+    	t_freebytes(x->x_lastanalysis, sizeof(float) * (2*x->x_hop + 4 *
+FILTSIZE));
+    	t_freebytes(x->x_spiral, sizeof(float) * 2*x->x_hop);
+    	t_freebytes(x->x_peakbuf, sizeof(*x->x_peakbuf) * x->x_npeakout);
+    	//clock_free(x->x_clock);
+    }
+     dsp_free((t_pxobject *)x);		// Free the object
+}
+
+void *sigfiddle_class;
+
+void *sigfiddle_new(long npoints, long npitch,			// MSP
+    long npeakanal, long npeakout)
+{
+    t_sigfiddle *x = (t_sigfiddle *)newobject(sigfiddle_class);
+    int i;
+
+    if (!sigfiddle_doinit(x, npoints, npitch, npeakanal, npeakout))
+	// MSP
+    {
+    	x->x_inbuf = 0;     /* prevent the free routine from cleaning up */
+    	return (0);
+    }
+   // post("npeak %d, npitch %d", npeakout, npitch);
+   // set up the inlets and outlets.
+    dsp_setup((t_pxobject *)x,1);	// 1 input
+
+    x->x_clock = clock_new(x, (method)sigfiddle_tick);
+     if (x->x_npeakout)
+    	x->x_peakout = listout((t_object *)x);         // listout?
+    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() // this can be called fiddle_setup if that name is the "Main"
+in PPC Linker prefs
+{
+	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_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(float *buf, long np, long inv)
+{
+	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 */