On Sunday, 29 November 2015 at 12:40:30 UTC, Guillaume Piolat wrote:
On Sunday, 29 November 2015 at 12:28:49 UTC, Ola Fosheim Grøstad wrote:
The sound samples sound quite a bit like the classic vocal sound of Infected Mushroom to my ears, which is cool.

Infected Mushroom released another plugin recently: http://www.musicradar.com/news/tech/infected-mushroom-present-the-i-wish-granular-note-freezing-plugin-631043


Hmm, yes, that looks like a simple loop algorithm. One can do interesting things with simple effects, like zero-crossing slicing. Btw, I recently found out that an ex-colleague of me has created a song with them called "Nerds on Mushrooms", IIRC he is quite fond of the vintage game music soundscape.

I assume you are using a peak detector to get the consonants through and granular synthesis to do the frequency shifting in the time domain?

It's a pitch-tracking poly-Bode-shifter. The pitch tracking part is secret(tm).

I remember the electro acoustic people here in Oslo (NoTAM) doing live pitchtracking 20 years ago, I believe they used an envelope follower of some sort. Just measuring the distance between the tops? That was to have the "electronic accompaniment" follow the lead of the vocalist I believe.

Maybe something like this for transients, or perhaps something less involved?

http://recherche.ircam.fr/anasyn/roebel/paper/icmc2003.pdf

The phase vocoders of IRCAM are very impressive at work, they have.

IRCAM has done a lot of interesting things. In the 90s they had the IRCAM workstation which was a NeXT cube with lots of DSP card so that you could run Max real time.

But it has different latency characteristics, overlapped FFT easily goes into the 20/30 ms.

It depends on how low down in frequency you need to go, a female voice is at 160 hz and up, and a child is at 250hz and up. In that frequency range one could do better. And at the cost of complexity you could use two FFTs, one for the lower range and another for the higher range.

Or maybe one can use wavelets, but I don't know much about wavelet transforms (they don't map to cosine, so imagine it will be much harder to do well).

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