[music-dsp] What is the waveform with even harmonics called

[James Chandler Jr]

On Jun 17, 2009, at 5:50 AM, padawan12 at obiwannabe.co.uk wrote:

> It's worth remembering that sometimes in sound synthesis
> (and other engineering applications) it's the time domain
> properties of a wave that we are really interested in.
>
> For example, as a control waveform (say the sawtooth/phasor
> used as a display scanline) or if a sound synthesis design
> despends upon subsequent non-linear stages (waveshaping).
> In these cases we are interested in the shape, so classical
> waveform names are really about naming the shape.

Thanks. Made me think about 'turning the idea inside out'-- I wonder  
if anyone has explored the mangling of LFO control waveforms via phase  
shifters? Seems an obvious idea but I don't recall trying it or  
reading about it.

Run the stereotypical triangle or sawtooth LFO thru phase shifting, to  
scatter the harmonics. The altered modulation time patterns might be  
interesting. One could even feed the LFO waveform thru an auto- 
sweeping phase shifter so that the LFO wave shape would continually  
'evolve'.

James