forked from librosa/librosa
-
Notifications
You must be signed in to change notification settings - Fork 0
/
makeTestData.m
454 lines (332 loc) · 11.6 KB
/
makeTestData.m
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
function testData(source_path, output_path)
% testData(source_path, audio_file, output_path)
% source_path = path to DPWE code
% output_path = directory to store generated files
%
% CREATED:2013-03-08 14:32:21 by Brian McFee <brm2132@columbia.edu>
% Generate the test suite data for librosa routines:
%
% hz_to_mel
% mel_to_hz
% hz_to_octs
%
% stft
% istft
%
% ifgram
%
% load
% resample
%
% melfb
% dctfb
%
% localmax
%
% Make sure we have the path to DPWE code
addpath(source_path);
display('hz_to_mel');
testHz2Mel(output_path);
display('mel_to_hz');
testMel2Hz(output_path);
display('hz_to_octs');
testHzToOcts(output_path);
display('load');
testLoad(output_path);
display('stft');
testSTFT(output_path);
display('istft');
testISTFT(output_path);
display('ifgram');
testIFGRAM(output_path);
display('melfb');
testMelfb(output_path);
display('chromafb');
testChromafb(output_path);
display('resample');
testResample(output_path);
display('beat');
testBeat(output_path);
%% Done!
display('Done.');
end
function testHz2Mel(output_path)
% Test with either a scalar argument or a vector
P_HZ = {[440], [2.^(1:13)]};
% Slaney-style or HTK
P_HTK = {0, 1};
counter = 0;
for i = 1:length(P_HZ)
f = P_HZ{i};
for j = 1:length(P_HTK)
htk = P_HTK{j};
% Run the function
result = hz2mel(f, htk);
% save the output
counter = counter + 1;
filename = sprintf('%s/feature-hz_to_mel-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'f', 'htk', 'result');
end
end
end
function testMel2Hz(output_path)
% Test with either a scalar argument or a vector
P_MELS = {[5], [2.^(-2:9)]};
% Slaney-style or HTK
P_HTK = {0, 1};
counter = 0;
for i = 1:length(P_MELS)
f = P_MELS{i};
for j = 1:length(P_HTK)
htk = P_HTK{j};
% Run the function
result = mel2hz(f, htk);
% save the output
counter = counter + 1;
filename = sprintf('%s/feature-mel_to_hz-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'f', 'htk', 'result');
end
end
end
function testHzToOcts(output_path)
% Scalar argument or a vector
P_HZ = {[5], [2.^(2:14)]};
counter = 0;
for i = 1:length(P_HZ)
f = P_HZ{i};
% Run the function
result = hz2octs(f);
% save the output
counter = counter + 1;
filename = sprintf('%s/feature-hz_to_octs-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'f', 'result');
end
end
function testLoad(output_path)
% Test: load a wav file
% get audio stream (floats) and sample rate
% preserve stereo or convert to mono
wavfile = 'data/test1_44100.wav';
[y, sr] = wavread(wavfile);
y = y'; % Transpose to make python code easier
mono = 0;
% Stereo output
counter = 1;
filename = sprintf('%s/core-load-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'mono', 'y', 'sr');
% Mono output
counter = 2;
mono = 1;
y = mean(y, 1);
filename = sprintf('%s/core-load-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'mono', 'y', 'sr');
end
function testMelfb(output_path)
% Test three sample rates
P_SR = [8000, 11025, 22050];
% Two FFT lengths
P_NFFT = [256, 512];
% Three filter bank sizes
P_NFILTS = [20, 40, 120];
% One width
P_WIDTH = [1.0];
% F_min
P_FMIN = [0, 512];
% F_max
P_FMAX = [2000, inf];
% Slaney or HTK mels
P_HTK = [0, 1];
% Generate tests
counter = 0;
for sr = P_SR
for nfft = P_NFFT
for nfilts = P_NFILTS
for width = P_WIDTH
for fmin = P_FMIN
for fmax = P_FMAX
if isinf(fmax)
fmax = sr / 2;
end
for htk = P_HTK
% Run the function
[wts, frqs] = fft2melmx(nfft, sr, nfilts, width, fmin, fmax, htk, 0);
% save the output
counter = counter + 1;
filename = sprintf('%s/feature-melfb-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, ...
'sr', 'nfft', 'nfilts', 'width', ...
'fmin', 'fmax', 'htk', 'wts', 'frqs');
end
end
end
end
end
end
end
end
function testResample(output_path)
wavfile = 'data/test1_22050.wav';
[y_in, sr_in] = wavread(wavfile);
y_in = mean(y_in, 2); % Convert to mono
% Test a downsample, same SR, and upsample
P_SR = [8000, 22050, 44100];
counter = 0;
for sr_out = P_SR
y_out = resample(y_in, sr_out, sr_in);
counter = counter + 1;
filename = sprintf('%s/core-resample-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'y_in', 'sr_in', 'y_out', 'sr_out');
end
end
function testSTFT(output_path)
wavfile = 'data/test1_22050.wav';
[y, sr] = wavread(wavfile);
y = mean(y, 2); % Convert to mono
% Test a couple of different FFT window sizes
P_NFFT = [128, 256, 1024];
% And hop sizes
P_HOP = [64, 128, 256];
% Note: librosa.stft does not support user-supplied windows,
% so we do not generate tests for this case.
counter = 0;
for nfft = P_NFFT
for hop_length = P_HOP
% Test once with no hann window (rectangular)
hann_w = 0;
D = stft(y, nfft, hann_w, hop_length, sr);
counter = counter + 1;
filename = sprintf('%s/core-stft-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'D', 'sr', 'nfft', 'hann_w', 'hop_length');
% And again with default hann window (nfft)
hann_w = nfft;
D = stft(y, nfft, hann_w, hop_length, sr);
counter = counter + 1;
filename = sprintf('%s/core-stft-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'D', 'sr', 'nfft', 'hann_w', 'hop_length');
end
end
end
function testIFGRAM(output_path)
wavfile = 'data/test1_22050.wav';
[y, sr] = wavread(wavfile);
y = mean(y, 2); % Convert to mono
% Test a couple of different FFT window sizes
P_NFFT = [128, 256, 1024];
% And window sizes
% P_WIN = [0.25, 0.5, 1.0];
P_WIN = [1.0];
% And hop sizes
P_HOP = [0.25, 0.5, 1.0];
% Note: librosa.stft does not support user-supplied windows,
% so we do not generate tests for this case.
counter = 0;
for nfft = P_NFFT
for win_ratio = P_WIN
for hop_ratio = P_HOP
% Test once with no hann window (rectangular)
hop_length = round(hop_ratio * nfft);
hann_w = round(win_ratio * nfft);
[F, D] = ifgram(y, nfft, hann_w, hop_length, sr);
counter = counter + 1;
filename = sprintf('%s/core-ifgram-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'F', 'D', 'sr', 'nfft', 'hann_w', 'hop_length');
end
end
end
end
function testISTFT(output_path)
wavfile = 'data/test1_22050.wav';
[y_in, sr] = wavread(wavfile);
y_in = mean(y_in, 2); % Convert to mono
% Test a couple of different FFT window sizes
P_NFFT = [128, 256, 1024];
% And hop sizes
P_HOP = [64, 128, 256];
% Note: librosa.stft does not support user-supplied windows,
% so we do not generate tests for this case.
counter = 0;
for nfft = P_NFFT
for hop_length = P_HOP
% Test once with no hann window (rectangular)
hann_w = 0;
D = stft(y_in, nfft, hann_w, hop_length, sr);
Dinv = istft(D, nfft, hann_w, hop_length);
counter = counter + 1;
filename = sprintf('%s/core-istft-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'D', 'Dinv', 'nfft', 'hann_w', 'hop_length');
% And again with default hann window (nfft)
hann_w = nfft;
D = stft(y_in, nfft, hann_w, hop_length, sr);
Dinv = istft(D, nfft, hann_w, hop_length);
counter = counter + 1;
filename = sprintf('%s/core-istft-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, 'D', 'Dinv', 'nfft', 'hann_w', 'hop_length');
end
end
end
function testBeat(output_path)
wavfile = 'data/test2_8000.wav';
[y, sr] = wavread(wavfile);
y = mean(y, 2); % Convert to mono
% Generate the onset envelope first
[t, xcr, D, onsetenv, oesr] = tempo2(y, sr);
filename = sprintf('%s/beat-onset-000.mat', output_path);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'onsetenv', 'D');
filename = sprintf('%s/beat-tempo-000.mat', output_path);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 't', 'onsetenv');
[beats, onsetenv_out, D, cumscore] = beat2(onsetenv, oesr);
filename = sprintf('%s/beat-beat-000.mat', output_path);
display([' `-- saving ', filename]);
save(filename, 'wavfile', 'beats', 'onsetenv');
end
function testChromafb(output_path)
% Test three sample rates
P_SR = [8000, 11025, 22050];
% Two FFT lengths
P_NFFT = [256, 512];
% Two filter bank sizes
P_NCHROMA = [12, 24];
% Two A440s
P_A440 = [435.0, 440.0];
% Two center octaves
P_CTROCT = [4.0, 5.0];
% Two octave widths
P_OCTWIDTH = [0, 2.0];
% Generate tests
counter = 0;
for sr = P_SR
for nfft = P_NFFT
for nchroma = P_NCHROMA
for a440 = P_A440
for ctroct = P_CTROCT
for octwidth = P_OCTWIDTH
% Run the function
wts = fft2chromamx(nfft, nchroma, sr, a440, ctroct, octwidth);
% save the output
counter = counter + 1;
filename = sprintf('%s/feature-chromafb-%03d.mat', output_path, counter);
display([' `-- saving ', filename]);
save(filename, ...
'sr', 'nfft', 'nchroma', 'a440', ...
'ctroct', 'octwidth', 'wts');
end
end
end
end
end
end
end