david/librubberband
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8c07d06d72d312f4f312379ce9f5f81cdd75cd32
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75 Commits

Author SHA1 Message Date
Chris Cannam
8c07d06d72 Small simplification 2022-06-17 16:56:09 +01:00
Chris Cannam
b4e921003f Perform polar-to-cartesian conversions only on range that will actually be used 2022-06-17 16:52:55 +01:00
Chris Cannam
6128ba6d36 Add convertToPolar to capture some of the awkward decisions in analyseChannel 2022-06-17 16:32:14 +01:00
Chris Cannam
ca0afe3a33 Merge 2022-06-17 15:01:39 +01:00
Chris Cannam
380cad53b4 Attempt to "fade in" phase resets on return to unity, so as to return to an approximate pass-through without too audible a click 2022-06-17 15:01:26 +01:00
Chris Cannam
ea148cb3ca More rt entry points 2022-06-17 08:26:05 +01:00
Chris Cannam
326f9b721d Add RTENTRY macro for STOAT testing 2022-06-15 17:22:32 +01:00
Chris Cannam
3db535281b This must round down; otherwise we can end up with the outhop exceeding 256 for some hops when we haven't planned it 2022-06-15 10:00:49 +01:00
Chris Cannam
a61a4f3201 Avoid dropping the 1024-point FFT until at least ratio 1.5 2022-06-15 09:40:09 +01:00
Chris Cannam
2c57d0ee30 Fix compiler warnings 2022-06-14 16:52:09 +01:00
Chris Cannam
b160475b07 Fix some compiler warnings 2022-06-14 15:15:55 +01:00
Chris Cannam
141c314c72 Proper adjustment of outhop for extreme ratios 2022-06-14 15:01:44 +01:00
Chris Cannam
638948269b Remove Silent classification from BinClassifier: not only is it not very useful, it's misaligned with the other classifications because it doesn't account for lag, and so it can make those wrong 2022-06-14 13:59:17 +01:00
Chris Cannam
fb75aa36f6 Using the instantaneous ratio here seems more proper, but it causes audible interference when using tiny shift ratios such that the hop flips back and forth between two adjacent values. Let's try using the more stable effective ratio, and see if the window smoothing is sufficient 2022-06-14 10:01:11 +01:00
Chris Cannam
9dbf53026a Fix failure to calculate offline stretch correctly when a zero-chunk region is found; provide alternate projection calculation method for R3 without stop-the-world phase resets 2022-06-13 17:16:03 +01:00
Chris Cannam
ac4072937e Add process mode; start on key-frame map 2022-06-13 16:06:21 +01:00
Chris Cannam
90ad1274d8 Add R3 support to plugins 2022-06-13 11:49:04 +01:00
Chris Cannam
c7e4d9eb07 Provide option to shift formant independently of pitch 2022-06-13 10:39:13 +01:00
Chris Cannam
182e2b0e3b Put binForFrequency/frequencyForBin in a common place 2022-06-13 10:08:05 +01:00
Chris Cannam
05fb611544 Experimental preKick to slightly reduce frame just before kick and boost kick accordingly 2022-06-13 09:40:26 +01:00
Chris Cannam
321a89e372 Fix absurd typo 2022-06-10 20:48:17 +01:00
Chris Cannam
9f913385de Apply start skip. Still work to be done 2022-06-10 20:26:37 +01:00
Chris Cannam
a66b01446f Pre-pad start of input; now need to un-pad start of output 2022-06-10 18:15:58 +01:00
Chris Cannam
2298b67869 Avoid recalculating window scale factor every time 2022-06-09 16:39:30 +01:00
Chris Cannam
14394141b0 Comment out debug 2022-06-09 16:00:27 +01:00
Chris Cannam
a7353d7161 Tidy 2022-06-09 15:39:06 +01:00
Chris Cannam
4a9574b7ee Backed out changeset b1275ea1b6c8 
This makes very little perceptible difference, possibly for the worse, and it is more complicated
 2022-06-09 15:26:16 +01:00
Chris Cannam
4457247749 Synchronise frequency channel cutoffs across channels. Not the most elegant way to do this I think 2022-06-09 14:56:20 +01:00
Chris Cannam
ab284f0047 Rather than using trough picker, make the division frequencies drift downhill 2022-06-09 14:29:51 +01:00
Chris Cannam
70a7b6d688 Some (temporary) debug etc 2022-06-09 14:16:49 +01:00
Chris Cannam
95a1d6df25 Start to bring in unit tests 2022-06-08 09:57:12 +01:00
Chris Cannam
36f993b9a6 Reduce p level for trough picker. The behaviour here is not what I'd hoped 2022-06-07 14:13:24 +01:00
Chris Cannam
07b339df13 Try a peak p-factor of 1 for the previous peaks 2022-06-07 12:12:06 +01:00
Chris Cannam
8ed709d274 Don't run median filters for higher frequencies than we're going to use anyway 2022-06-07 11:05:50 +01:00
Chris Cannam
c31839ef93 Use fixed (faster) resampler settings in offline mode 2022-06-07 09:06:52 +01:00
Chris Cannam
ef2d39b3af Or is this the right thing? I'm having trouble deciding 2022-06-06 17:50:22 +01:00
Chris Cannam
48174ded20 Ensure we have full magnitude range available in classify scale even when ratio has changed and the readahead isn't valid - necessary to avoid noise on ratio change when formant shifting 2022-06-06 17:44:22 +01:00
Chris Cannam
6ef77ef7aa Tidy 2022-06-06 17:10:12 +01:00
Chris Cannam
100a7c0ba6 Go back to running formants only within the necessary range 2022-06-06 17:06:52 +01:00
Chris Cannam
4fb7b0ad47 And per-channel formants 2022-06-06 16:51:02 +01:00
Chris Cannam
ec7a2b1b51 Experiment with formant shifting before the peaks/phase work 2022-06-06 16:37:44 +01:00
Chris Cannam
9a7a977fa0 Tidy 2022-06-06 14:49:01 +01:00
Chris Cannam
0ceca73636 Settle on these values for the moment 2022-06-06 14:00:09 +01:00
Chris Cannam
f8abd07438 Tidy, and try without a high formant limit 2022-06-06 13:09:29 +01:00
Chris Cannam
baab6ae66e Further formant experiments 2022-06-06 12:08:52 +01:00
Chris Cannam
2673983220 I think this check was only necessary because of our wrong handling of pitch scale 2022-05-27 15:29:28 +01:00
Chris Cannam
ce64122ffe Wire up formant option; some tidying 2022-05-27 15:16:10 +01:00
Chris Cannam
7febc09dbc Fix accidental time stretch coming along with pitch shift 2022-05-27 15:03:40 +01:00
Chris Cannam
f13d96a474 First cut at formant preservation 2022-05-27 14:58:42 +01:00
Chris Cannam
9379908982 Avoid excessive outhop when pitch shifting a long way 2022-05-27 11:34:35 +01:00