forked from BoysTownOrg/chapro
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathtst_gha.c
646 lines (585 loc) · 16.6 KB
/
tst_gha.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
#ifndef ARDUINO
// tst_gha.c - test IIR-filterbank + AGC + NFC
// with WAV file input & ARSC output
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include <ctype.h>
#include <arsclib.h>
#include <sigpro.h>
#include "chapro.h"
#define DATA_HDR "tst_gha_data.h"
//#include DATA_HDR
#define MAX_MSG 256
typedef struct {
char *ifn, *ofn, *dfn, mat, nrep;
double rate;
float *iwav, *owav;
int32_t cs;
int32_t *siz;
int32_t iod, nwav, nsmp, mseg, nseg, oseg, pseg;
void **out;
} I_O;
/***********************************************************/
static char msg[MAX_MSG] = {0};
static double srate = 24000; // sampling rate (Hz)
static int chunk = 32; // chunk size
static int prepared = 0;
static int io_wait = 40;
static struct {
char *ifn, *ofn, simfb, afc, mat, nrep, play;
int afl, wfl, pfl, pup;
} args;
static CHA_AFC afc = {0};
static CHA_DSL dsl = {0};
static CHA_WDRC agc = {0};
/***********************************************************/
static void
process_chunk(CHA_PTR cp, float *x, float *y, int cs)
{
if (prepared) {
// next line switches to compiled data
//cp = (CHA_PTR) cha_data;
float *z = CHA_CB;
cha_afc_filters(cp, &afc);
// process IIR+AGC+AFC
cha_afc_input(cp, x, x, cs);
cha_agc_input(cp, x, x, cs);
cha_iirfb_analyze(cp, x, z, cs);
cha_agc_channel(cp, z, z, cs);
cha_iirfb_synthesize(cp, z, y, cs);
cha_agc_output(cp, y, y, cs);
cha_afc_output(cp, y, cs);
}
}
/***********************************************************/
// initialize io
static void
usage()
{
printf("usage: tst_gha [-options] [input_file] [output_file]\n");
printf("options\n");
printf("-a disable feedback cancelation\n");
printf("-d disable simulated feedback\n");
printf("-h print help\n");
printf("-m output MAT file\n");
printf("-nN AFC filter length = n\n");
printf("-pN band-limit filter length = n\n");
printf("-P play output\n");
printf("-rN number of input file repetitions = N\n");
printf("-uN band-limit filter update period = N\n");
printf("-v print version\n");
printf("-wN whiten filter length = n\n");
exit(0);
}
static void
version()
{
printf("%s\n", cha_version());
exit(0);
}
static int
mat_file(char *fn)
{
int d;
if (fn) {
d = strlen(fn) - 4;
if (d > 0) {
if ((tolower(fn[d + 1]) == 'm')
&& (tolower(fn[d + 2]) == 'a')
&& (tolower(fn[d + 3]) == 't')) {
return (1);
}
}
}
return (0);
}
static void
parse_args(int ac, char *av[])
{
args.afc = 1;
args.mat = 1;
args.play = 0;
args.nrep = 1;
args.simfb = 1;
args.afl = -1;
args.wfl = -1;
args.pfl = -1;
args.pup = -1;
while (ac > 1) {
if (av[1][0] == '-') {
if (av[1][1] == 'a') {
args.afc = 0;
} else if (av[1][1] == 'd') {
args.simfb = 0;
} else if (av[1][1] == 'h') {
usage();
} else if (av[1][1] == 'm') {
args.mat = 1;
} else if (av[1][1] == 'n') {
args.afl = atoi(av[1] + 2);
} else if (av[1][1] == 'p') {
args.pfl = atoi(av[1] + 2);
} else if (av[1][1] == 'P') {
args.play = 1;
} else if (av[1][1] == 'r') {
args.nrep = atoi(av[1] + 2);
} else if (av[1][1] == 'u') {
args.pup = atof(av[1] + 2);
} else if (av[1][1] == 'v') {
version();
} else if (av[1][1] == 'w') {
args.wfl = atoi(av[1] + 2);
}
ac--;
av++;
} else {
break;
}
}
args.ifn = (ac > 1) ? _strdup(av[1]) : NULL;
args.ofn = (ac > 2) ? _strdup(av[2]) : NULL;
if (args.ofn) args.mat = mat_file(args.ofn);
}
/***********************************************************/
void
msleep(uint32_t msec)
{
#ifdef WIN32
Sleep(msec);
#else
struct timespec delay = {0};
uint32_t sec = msec / 1000;
msec -= sec * 1000;
delay.tv_sec = sec;
delay.tv_nsec = msec * 1000000; // convert msec to nsec
nanosleep(&delay, &delay);
#endif
}
/***********************************************************/
static void
set_spl(float *x, int n, double rms_lev, double spl_ref)
{
float scl;
double xx, rms, smsq, lev;
int i;
smsq = 0;
for (i = 0; i < n; i++) {
xx = x[i];
smsq += xx * xx;
}
rms = sqrt(smsq / n);
lev = 20 * log10(rms / spl_ref);
scl = (float) pow(10,(rms_lev - lev) / 20);
for (i = 0; i < n; i++) {
x[i] *= scl;
}
}
static int
init_wav(I_O *io, char *msg)
{
float fs;
VAR *vl;
static double spl_ref = 1.1219e-6;
static double rms_lev = 65;
if (io->iwav) free(io->iwav);
if (io->owav) free(io->owav);
if (io->ifn) {
// get WAV file info
vl = sp_wav_read(io->ifn, 0, 0, &fs);
if (vl == NULL) {
fprintf(stderr, "can't open %s\n", io->ifn);
return (1);
}
if (io->rate != fs) {
fprintf(stderr, "WARNING: %s rate mismatch: ", io->ifn);
fprintf(stderr, "%.0f != %.0f\n", fs, io->rate);
io->rate = fs;
}
if (msg) sprintf(msg, " WAV input : %s repeat=%d\n", io->ifn, io->nrep);
io->nwav = vl[0].rows * vl[0].cols;
io->iwav = (float *) calloc(io->nwav, sizeof(float));
fcopy(io->iwav, vl[0].data, io->nwav);
set_spl(io->iwav, io->nwav, rms_lev, spl_ref);
sp_var_clear(vl);
} else { /* ADC input */
io->nwav = 0;
io->iwav = (float *) calloc(io->cs * 2, sizeof(float));
}
if (io->ofn) {
io->nsmp = io->nwav;
io->mseg = 1;
io->nseg = 1;
io->owav = (float *) calloc(io->nsmp, sizeof(float));
} else { /* DAC output */
io->cs = round((io->rate * io_wait * 4) / 1000); // chunk size
io->mseg = 2;
io->nseg = io->nrep * io->nwav / io->cs;
io->owav = (float *) calloc(io->cs * (io->mseg + 1), sizeof(float));
io->nsmp = io->nwav * io->nrep;
}
io->pseg = io->mseg;
return (0);
}
/***********************************************************/
static void
init_aud(I_O *io)
{
#ifdef ARSCLIB_H
char name[80];
int i, j, err;
static int nchn = 2; // number of channels
static int nswp = 0; // number of sweeps (0=continuous)
static int32_t fmt[2] = {ARSC_DATA_F4, 0};
err = ar_out_open(io->iod, io->rate, nchn);
if (err) {
ar_err_msg(err, msg, MAX_MSG);
fprintf(stderr, "ERROR: %s\n", msg);
return;
}
ar_dev_name(io->iod, name, 80);
ar_set_fmt(io->iod, fmt);
io->siz = (int32_t *) calloc(io->mseg, sizeof(int32_t));
io->out = (void **) calloc(io->mseg * nchn, sizeof(void *));
for (i = 0; i < io->mseg; i++) {
io->siz[i] = io->cs;
io->out[i * nchn] = io->owav + io->cs * i;
for (j = 1; j < nchn; j++) {
io->out[i * nchn + j] = NULL;
}
}
ar_out_prepare(io->iod, io->out, (int32_t *)io->siz, io->mseg, nswp);
printf("audio output: %s\n", name);
ar_io_start(io->iod);
#endif // ARSCLIB_H
}
static int
get_aud(I_O *io)
{
#ifdef ARSCLIB_H
io->oseg = ar_io_cur_seg(io->iod);
#endif // ARSCLIB_H
return (io->oseg < io->nseg);
}
static void
put_aud(I_O *io, CHA_PTR cp)
{
int od, iw, ow, nd, ns;
if ((io->oseg + io->mseg) == io->pseg) {
od = io->pseg * io->cs;
nd = io->nrep * io->nwav - od;
ow = (io->pseg % io->mseg) * io->cs;
iw = od % io->nwav;
ns = (io->cs > (io->nwav - iw)) ? (io->nwav - iw) : io->cs;
if (nd >= io->cs) {
if (ns == io->cs) {
fcopy(io->owav + ow, io->iwav + iw, io->cs);
} else {
fcopy(io->owav + ow, io->iwav + iw, ns);
fcopy(io->owav + ow, io->iwav, io->cs - ns);
}
} else if (nd > 0) {
if (ns == io->cs) {
fcopy(io->owav + ow, io->iwav + iw, nd);
fzero(io->owav + ow + nd, 2 * io->cs - nd);
} else {
fcopy(io->owav + ow, io->iwav + iw, nd);
fcopy(io->owav + ow + nd, io->iwav + iw, ns - nd);
fzero(io->owav + ow + ns, 2 * io->cs - ns);
}
} else {
fzero(io->owav, 2 * io->cs);
}
io->pseg++;
process_chunk(cp, io->owav + ow, io->owav + ow, io->cs);
}
}
/***********************************************************/
// prepare input/output
static int
prepare_io(I_O *io)
{
// initialize waveform
io->rate = srate;
io->cs = chunk;
if (init_wav(io, msg)) {
return (1);
}
// prepare i/o
if (!io->ofn) {
init_aud(io);
}
printf("%s", msg);
printf(" prepare_io: sr=%.0f cs=%d ns=%d\n", io->rate, io->cs, io->nsmp);
return (0);
}
// prepare IIR filterbank
static void
prepare_filterbank(CHA_PTR cp)
{
double td, sr, *cf;
int cs, nc, nz;
// zeros, poles, gains, & delays
float z[64], p[64], g[8];
int d[8];
sr = srate;
cs = chunk;
// prepare IIRFB
nc = dsl.nchannel;
cf = dsl.cross_freq;
nz = agc.nz;
td = agc.td;
cha_iirfb_design(z, p, g, d, cf, nc, nz, sr, td);
cha_iirfb_prepare(cp, z, p, g, d, nc, nz, sr, cs);
}
// prepare AGC compressor
static void
prepare_compressor(CHA_PTR cp)
{
// prepare AGC
cha_agc_prepare(cp, &dsl, &agc);
}
// prepare feedback
static void
prepare_feedback(CHA_PTR cp)
{
// prepare AFC
cha_afc_prepare(cp, &afc);
}
// prepare signal processing
static void
prepare(I_O *io, CHA_PTR cp)
{
prepare_io(io);
srate = io->rate;
chunk = io->cs;
prepare_filterbank(cp);
prepare_compressor(cp);
if (afc.sqm) afc.nqm = io->nsmp * io->nrep;
prepare_feedback(cp);
prepared++;
// generate C code from prepared data
//cha_data_gen(cp, DATA_HDR);
}
// process signal
static void
process(I_O *io, CHA_PTR cp)
{
float *x, *y;
int i, j, m, n, cs, nk, iqm;
double t1, t2, fme;
if (io->ofn) {
sp_tic();
// initialize i/o pointers
x = io->iwav;
y = io->owav;
n = io->nwav;
m = io->nrep;
cs = io->cs; // chunk size
nk = n / cs; // number of chunks
for (j = 0; j < m; j++) {
for (i = 0; i < nk; i++) {
process_chunk(cp, x + i * cs, y + i * cs, cs);
}
}
t1 = sp_toc();
t2 = (io->nwav / io->rate) * io->nrep;
printf("speed_ratio: ");
printf("(wave_time/wall_time) = (%.3f/%.3f) ", t2, t1);
printf("= %.1f\n", t2 / t1);
// report quality metric
iqm = afc.iqmp ? afc.iqmp[0] : 0;
if (iqm) {
if (afc.qm[iqm - 1] > 0) {
fme = 10 * log10(afc.qm[iqm - 1]);
printf("final misalignment error = %.2f dB\n", fme);
}
}
} else {
while (get_aud(io)) {
put_aud(io, cp);
msleep(io_wait); // wait time
}
}
}
/***********************************************************/
// terminate io
static void
write_wave(I_O *io)
{
float r[1], *w, *meer;
int n, nbits = 16;
static VAR *vl;
if (io->dfn) {
printf(" MAT output: %s\n", io->dfn);
meer = afc.qm ? afc.qm : (float *) calloc(sizeof(float), afc.nqm);
vl = sp_var_alloc(9);
sp_var_add(vl, "merr", meer, afc.nqm, 1, "f4");
sp_var_add(vl, "sfbp", afc.sfbp, afc.fbl, 1, "f4");
sp_var_add(vl, "efbp", afc.efbp, afc.afl, 1, "f4");
sp_var_add(vl, "wfrp", afc.wfrp, afc.wfl, 1, "f4");
sp_var_add(vl, "ffrp", afc.ffrp, afc.pfl, 1, "f4");
sp_var_add(vl, "ifn", io->ifn, 1, 1, "f4str");
sp_var_add(vl, "ofn", io->ofn, 1, 1, "f4str");
sp_var_add(vl, "sr", &srate, 1, 1, "f8");
remove(io->dfn);
sp_mat_save(io->dfn, vl);
sp_var_clear(vl);
if (!afc.qm && meer) free(meer);
}
if (io->ofn) {
printf(" WAV output: %s\n", io->ofn);
r[0] = (float) io->rate;
n = io->nwav;
w = io->owav;
vl = sp_var_alloc(2);
sp_var_add(vl, "rate", r, 1, 1, "f4");
sp_var_add(vl, "wave", w, n, 1, "f4");
vl[1].dtyp = SP_DTYP_F4; /* workaround sigpro bug */
remove(io->ofn);
sp_wav_write(io->ofn, vl + 1, r, nbits);
sp_var_clear(vl);
}
}
static void
stop_wav(I_O *io)
{
if (io->ofn) {
free(io->owav);
} else {
#ifdef ARSCLIB_H
ar_io_stop(io->iod);
ar_io_close(io->iod);
#endif // ARSCLIB_H
if (io->siz) free(io->siz);
if (io->out) free(io->out);
if (io->owav) free(io->owav);
}
if (io->ifn) {
sp_var_clear_all();
} else {
free(io->iwav);
}
if (io->nseg == 1) {
printf("...done");
}
printf("\n");
}
// clean up io
static void
cleanup(I_O *io, CHA_PTR cp)
{
if (io->ofn) {
if (io->nsmp < 1234567) {
write_wave(io);
} else {
printf("Too large to write: nsmp=%d\n", io->nsmp);
}
}
stop_wav(io);
cha_cleanup(cp);
}
/***********************************************************/
static void
configure_compressor()
{
// DSL prescription example
static CHA_DSL dsl_ex = {5, 50, 119, 0, 8,
{317.1666,502.9734,797.6319,1264.9,2005.9,3181.1,5044.7},
{-13.5942,-16.5909,-3.7978,6.6176,11.3050,23.7183,35.8586,37.3885},
{0.7,0.9,1,1.1,1.2,1.4,1.6,1.7},
{32.2,26.5,26.7,26.7,29.8,33.6,34.3,32.7},
{78.7667,88.2,90.7,92.8333,98.2,103.3,101.9,99.8}
};
static CHA_WDRC agc_ex = {1, 50, 24000, 119, 0, 105, 10, 105};
static int nz = 4;
static double td = 2.5;
memcpy(&dsl, &dsl_ex, sizeof(CHA_DSL));
memcpy(&agc, &agc_ex, sizeof(CHA_WDRC));
agc.nz = nz;
agc.td = td;
}
static void
configure_feedback()
{
// AFC parameters
afc.afl = 42; // adaptive filter length
afc.wfl = 9; // whiten-filter length
afc.pfl = 0; // band-limit-filter length
// update args
if (args.afl >= 0) afc.afl = args.afl;
if (args.wfl >= 0) afc.wfl = args.wfl;
if (args.pfl >= 0) afc.pfl = args.pfl;
afc.alf = 0; // band-limit update rate
if (afc.pfl) { // optimized for wfl=9 & pfl=21
afc.rho = 0.007218985; // forgetting factor
afc.eps = 0.000919300; // power threshold
afc.mu = 0.004607254; // step size
afc.alf = 0.000010658; // band-limit update
} else if (afc.wfl) { // optimized for wfl=9
afc.rho = 0.008542769; // forgetting factor
afc.eps = 0.001128440; // power threshold
afc.mu = 0.004373509; // step size
} else {
afc.rho = 0.000002279; // forgetting factor
afc.eps = 0.001394894; // power threshold
afc.mu = 0.000417949; // step size
}
afc.pup = 8; // band-limit update period
afc.hdel = 0; // output/input hardware delay
afc.sqm = 1; // save quality metric ?
afc.fbg = 1; // simulated-feedback gain
afc.nqm = 0; // initialize quality-metric length
if (args.pup >= 0) afc.pup = args.pup;
}
static void
configure(I_O *io)
{
static char *ifn = "test/carrots.wav";
static char *wfn = "test/tst_gha.wav";
static char *mfn = "test/tst_gha.mat";
// initialize CHAPRO variables
configure_compressor();
configure_feedback();
// initialize I/O
#ifdef ARSCLIB_H
io->iod = ar_find_dev(ARSC_PREF_SYNC); // find preferred audio device
#endif // ARSCLIB_H
io->iwav = NULL;
io->owav = NULL;
io->ifn = args.ifn ? args.ifn : ifn;
io->ofn = args.play ? args.ofn : wfn;
io->dfn = mfn;
io->mat = args.mat;
io->nrep = (args.nrep < 1) ? 1 : args.nrep;
}
static void
report()
{
char *en, *fc;
int nc, nz;
// report
fc = args.afc ? "+AFC" : "";
en = args.simfb ? "en" : "dis";
nc = dsl.nchannel;
nz = agc.nz;
printf("CHA simulation: feedback simulation %sabled.\n", en);
printf("IIR+AGC%s: nc=%d nz=%d\n", fc, nc, nz);
}
/***********************************************************/
int
main(int ac, char *av[])
{
static void *cp[NPTR] = {0};
static I_O io;
parse_args(ac, av);
configure(&io);
report();
prepare(&io, cp);
process(&io, cp);
cleanup(&io, cp);
return (0);
}
#endif