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