[sdiy] analogue phase modulation

[Loscha]

JH,

The Dx7 to CSound converter might shed some light on the subject for you.
You can use that to reverse engineer the Dx7 patches into perhaps more
"real world" values.

http://www.parnasse.com/dx72csnd.shtml

-Loscha

On 1/10/07, Adam Schabtach <adam at studionebula.com> wrote:
> > What amount of (maximum) phase modulation depth (number of
> > periods), do typical
> > digital PM sounds a la DX7 etc. have ?
>
> Chowning's original paper has several examples; the maximum depth for
> several non-percussive instruments is 4 or 5, and 10 or 25 for bell and drum
> timbres. The parameters in a DX7 are all in arbitrary units so the maximum
> depth used in that implementation isn't readily apparent but obviously
> someone knows what it is since it's been reimplemented in software by Native
> Instruments and others.
>
> --Adam
>
>


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