You could try a phase vocoder instead of WSOLA for time stretching. Latency would be the size of the fft block.
El sáb., 6 oct. 2018 19:49, gm <g...@voxangelica.net> escribió: > > right > > the latency required is that you need to store the complete wavecycle, or > two of them, to compare them > > (My method works a little bit different, so I only need one wavecycle.) > > So you always have this latency, regardless what sample rate you use. > > But maybe you dont need 20 Hz, for speech for instance I think that 100 or > even 150 Hz is sufficient? I dont know > > > > Am 06.10.2018 um 19:34 schrieb Alex Dashevski: > > If I understand correctly, resampling will not help. Right ? > No other technique that will help. Right ? > What do you mean "but not the duration/latency required" ? > > b href="mailto:g...@voxangelica.net"; moz-do-not-send="true"> > g...@voxangelica.netb > >> >> >> Am 06.10.2018 um 19:07 schrieb Alex Dashevski: >> > What do you mean "replay" ? duplicate buffer ? >> >> I mean to just read the buffer for the output. >> So in my example you play back 10 ms audio (windowed of course), then >> you move your read pointer and play >> that audio back again, and so on, untill the next "slice" or "grain" or >> "snippet" of audio is played back. >> >> > I have the opposite problem. My original buffer size doesn't contain >> > full cycle of the pitch. >> >> then your pitch is too low or your buffer too small - there is no way >> around this, it's physics / causality. >> You can decrease the number of samples of the buffer with a lower sample >> rate, >> but not the duration/latency required. >> >> > How can I succeed to shift pitch ? >> >> You wrote you can have a latency of < 100ms, but 100ms should be >> sufficient for this. >> >> >> >> _______________________________________________ >> dupswapdrop: music-dsp mailing list >> music-dsp@music.columbia.edu >> https://lists.columbia.edu/mailman/listinfo/music-dsp >> >> > _______________________________________________ > dupswapdrop: music-dsp mailing list > music-dsp@music.columbia.edu > https://lists.columbia.edu/mailman/listinfo/music-dsp
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