shepard

[Thomas Hudson]

There is also an implementation of the shepard function for CSound
creating the ever-rising glissando. I believe I have this somewhere,
I can send it to anyone interested. However, a more interesting use
of the shepard function generator is with phasors, filters, and flangers,
processing external audio signals. John Simonton also suggested
using different types of effects on each channel.

Thomas


> -----Original Message-----
> From:	owner-synth-diy at mailhost.bpa.nl
> [mailto:owner-synth-diy at mailhost.bpa.nl] On Behalf Of Dr. Jörg Schmitz
> Sent:	Tuesday, September 15, 1998 4:31 AM
> To:	'synth-diy at mailhost.bpa.nl'
> Subject:	shepard
>
> Hi DIYers.
> Am i wrong ? I think, the ever rising glissando needs two phase shifted
> oscillators : one saw (8 outputs, each 45 degree shifted) and additionally
> one TRI (same as saw).
>
> (TRI could be generated from the SAW, so this wouldn't be THAT problem)
>
> SAW serves as input for the VCO and TRI as input for the VCA.
> Otherwise you will hear the tune jump of the vco's.
> By the way : 8 VCO's and 8 VCA's, together with the TRI/SAW shepard
> generator. A lot of work.
>
> Are there wav-files in the net, containig an example of
> the "ever rising glissando" ? Before building up all these things
> i would like to hear it.
>
> J.S.
>
>
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