[PD] OT: faster than Fourier transform

Mathieu Bouchard matju at artengine.ca
Wed Jan 25 23:22:31 CET 2012

Le 2012-01-25 à 23:10:00, Pedro Lopes a écrit :

> If I didn't get it wrong: I think they mention the "premise" is 
> the opposite of white noise, thus signals do not exhibit the behavior of 
> white noise (spread out through all spectrum).

I'm just stating a worst case. No one would bother analysing a white 
noise. But if I analyse speech that contains shhh sounds, or if I analyse 
music that has a snare drum, the analyser might have trouble. Even if I 
play a chord on a fuzz guitar, as fuzz greatly increases the number of 
harmonics, especially if the pre-fuzz signal has low freqs. There are 
plenty of interesting signals that contain lots of harmonics.

> Once again, its just a tool, and tools are useful for certain cases, and 
> not useful for other cases. Like the hammer.

The hammer is a great analyser. It helps take things apart. I can use it 
to analyse sounds. It's easy, I just have to threaten a music student with 
it, and the music student will then produce the desired output.

| Mathieu BOUCHARD ----- téléphone : +1.514.383.3801 ----- Montréal, QC

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