[sdiy] Generating acyclic waveforms?

[Eric Brombaugh]

On 03/22/2010 11:27 AM, Ian Fritz wrote:

> 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.

This agrees with my experience too - I spent several summers during 
high-school & college doing R&D on an electronic tuner that my father 
used for tuning pipe organs. Many hours spent staring at waveforms from 
different organ stops, and while the waveform shape changes slightly 
from one pipe to the next, a single pipe playing has a fairly static 
waveform. Hard to imagine how that could be without the harmonics being 
related by exact integer ratios to the fundamental.

Eric