[PD] [OT] gallery installation sound

Kyle Klipowicz kyleklip at gmail.com
Tue Feb 13 18:34:58 CET 2007

On 2/13/07, Frank Barknecht <fbar at footils.org> wrote:
> Actually I think, engineers prefer to use frequency sweeps instead of
> pulses nowadays

How fast of a sweep are you talking about? Seconds or milliseconds? Is
this the 50 and 80 ms bit that the paper mentions?

>   If we use a rising
>   frequency sweep, the harmonics will be gener-
>   ated ahead of the same frequencies appearing
>   in the signal. So after deconvolution, any dis-
>   tortion will appear as spurious peaks in negative
>   time in the impulse response, and most of it can
>   then be edited out easily.

What a great way to use an artifact of the FFT to one's advantage. Awesome!





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