On Wed, May 25, 2016 at 10:38 AM, Marco Lo Monaco <marco.lomon...@teletu.it>
> Good job! Buffer size is?
> *Da:* music-dsp-boun...@music.columbia.edu [mailto:
> music-dsp-boun...@music.columbia.edu] *Per conto di *Eder Souza
I do not see drives in the andraudio group since he migrated to 
Some years ago I tried see how some of my codes works in android, I wrote
effects to work in real-time (automatic pitch correction, time stretch,
pitch shifters in time domain and frequency domain) and I get a lot of
A lot of trick but I did
Was fun write the code :-)
▇ ▅ █ ▅ ▇ ▂ ▃ ▁ ▁ ▅ ▃ ▅ ▅ ▄ ▅ ▇
Sent From The Moon and
WSOLA is an Time Domain algorithm, Pitch shifters can works in time domain
too, there are some ways to do this...
WSOLA is just one time-scaler, but you can pitch shift combining WSOLA and
- Change the time using WSOLA (ex. time scale by 2.0)
- Use some interpolation(ex. resample scale
WoW nice Examples :-)
It's really amazing to get satisfactory results without need a pitch track!
I will try put some examples in somewhere, I coded some algorithms like
Phase Vocoders, TDHS and PSOLA(Lent), I'm using pitch track (AMDF just in
monophonic sound) to splice and cross-fade with
Some time ago I posted some code in matlab, this is not real-time, you can
see the basic math of an standard phase vocoder.
This code just change the time, you can pitch shift using a
When I read the original patent US5973252A (Pitch detection and intonation
correction apparatus and method), in the vague description of how the pitch
shift is made, I wondered if everything seemed to be as simple as I would
For pitch shift (auto Tune):
Just get the fracional
In essence WSOLA and SOLA are only for Time Scale Modification...
WSOLA - Applies synchronization in the analysis stage of OLA, so input
frames are selected based on waveform similarity, keeping the output at a
SOLA - Works like WSOLA but applies synchronization in the output, so
Pyin seems nice, I never tasted it before !
Yeah I use YIN, I made a sacred way searching and writing Pitch Tracking
algorithm to works with Keith Lent Pitch Shifting, I have coded the basic
steps of YIN in matlab, but for me or my implementation not works so well
like AMDF or some improved
From The Moon and Written With My Thumbs !
On Thu, Jan 17, 2019 at 6:31 PM robert bristow-johnson <
> Original Message
> Subject: Re: [music-dsp] Auto-tune sounds like vocoder
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