Tuesday, January 21, 2014

Talked about vocoders and auto tune



http://www.youtube.com/watch?v=-VIqA3i2zQw - Laurie Anderson - O Superman


Discussed Phase vocoders

“A phase vocoder is a type of vocoder which can scale both the frequency and time domains of audio signals by using phase information. The computer algorithm allows frequency-domain modifications to a digital sound file (typically time expansion/compression and pitch shifting).”


In PD:
Look at measure spectrum 
(Help -> Browser -> Pure Data -> Audio Examples -> I07)
TO upload a sound click the toggle for the sample and find a sound file (MUST BE A .WAV file)

5 Necessary Tools for Audio Design
1) Loop
2) Cut/Slice
3) Changing
4) Make Delay
5) Change Direction

What we will do on Thursday:
Terry Riley - Poppy Nogood And the Phantom Band All Night



Homework:
Google
Cher
Imogen Heip
Laurie Anderson
Vocoders
Play with the Measure Spectrum (Directions to code up above)
Listen to:

Robert Fripp - Let the Power Fall http://www.youtube.com/watch?v=mHM9c3p41d8

Download Max map jitter
http://cycling74.com/downloads/

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