[music-dsp] Paper on bandlimited analog waveform synthesis usingFM

Didier Dambrin didid at skynet.be
Wed Jan 17 01:40:35 EST 2007


> > yes we are: check this sample, both parts will look exactly the same in
> > a spectrum, only the phases of the partials are random in the first
> > part. Sounds totally different.
> >
> > http://www.flstudio.com/gol/SawTest.wav
>
> Get a waveform. Apply an all-pass filter. Now listen and look at the 
> waveforms. The sound is totally identical, despite that the waveforms are 
> totally different (I have some problems with my PC now, that's why I 
> cannot upload an example file, so you must believe me ;)
>

but it's not because you can mess with the phases & we can't hear the 
difference, that you can affirm
"because the human ear is incapable of detecting the phase of the sine 
partials in a waveform", my audio example being an example of the contrary 
(only the phases of the sines are different).





> >>> I agree that sine FM feedback sounds similar, though, but the tone
> >>> isn't the same.
> >>
> >> Yep, that's why it is interesting. Do you know how boring our life
> >> were if all oscillators sounded the same?
> >>
> >
> > but there's nothing wrong with that, I'd just wouldn't call it a
> > sawtooth
>
> I suppose then you wouldn't call a Waldorf Pulse or a MiniMoog 'saw' wave 
> a sawtooth either. Would you?

I would call it sawtooth in a synthesizer because it talks to synthesizer 
users, but I wouldn't call it sawtooth in a technical paper 




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