[sdiy] Re: linear FM

[jhaible at debitel.net]

> 
> I hope I answered what your question was, not just what I imagined it to be!
> 

Yes, thanks, that was an open question for me - so there _is_ a 
mathematical definition for phase even for general periodic waveforms.

(But ... there is also a definition of phase for each harmonic, if you
develop the periodic waveform into a fourier series. 

How do these two definitions fit together ? Especially when you apply 
linear FM to an oscillator with a waveform that's different from sine?

And, if we use our oscillator waveform - triangle, saw etc. - as an
input for a sine shaper, would it matter at all? (I don't think so).)


My original point was that as long the oscillator is unmodulated,
there is no change from positive to negative frequency (and thus
no switch from increasing phase to decreasing phase), regardless
of the waveform that's used in the VCO core.

JH.

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