[sdiy] Generating acyclic waveforms?

[cheater cheater]

On Tue, Mar 23, 2010 at 23:49, karl dalen <dalenkarl at yahoo.se> wrote:
>> >  I also think you might have missed the finer
>> details that occurs in acoustical resonators such as used in
>> crystal oscillators,
>>
>> Then you might want to look up my dozens of publications in
>> the field.
>
> A link would be nice?
>
>> Yes there are situations where driven nonlinear systems
>> give non-harmonic responses, such as the chaos generators I
>> have been working on for the past several years, wolf tones
>> in cellos, etc.  There was even a paper a while back
>> that demonstrated the period doubling route to chaos in a
>> model clarinet.
>
> Wolf tones, sound interesting any links perhaps?
>>
>> But the original question was whether wind instruments have
>> stretched harmonic spectra, and the answer is still
>> emphatically no, because they are practically always in the
>> phase locked regime, as widely discussed in the many books
>> and publications on the subject.
>
> Can an inharmonic be phase locked to a harmonic or the fundamental?
> Aren't that quite difficult if one wants the inharmonic
> to be continuous without the effect of phase locking has ?
>
> Hmm, a VCO sometimes has the ability to phase lock by stretching the
> frequency by the nearby weaker vco until it pops into that stronger frequency, it bends in kind of rubber band effect.
>
> A badly designed filter can also have this effect, the Fc snaps
> onto to the fundamental of a wave passing trough the filter
> if one modulates Fc perhaps that could count as harmonic stretching
> or overtone excitation?.

No and no.