By the way, in the 80's Elektor Sampler book there is an interesting
circuit
where the higher wave clock is generated from a normal pulse using a
PLL. I am looking
into this as VCO's tend to be less accurate scale-wise in the higher
frequencies and if
one is clocking the wavetable it can't be used for much else (unless you
run it through a divider). Upscaling the clock with a PLL would
probably
solve all that.
Op 22 mei 2009, om 08:05 heeft acousmatique het volgende geschreven:
circuit
where the higher wave clock is generated from a normal pulse using a
PLL. I am looking
into this as VCO's tend to be less accurate scale-wise in the higher
frequencies and if
one is clocking the wavetable it can't be used for much else (unless you
run it through a divider). Upscaling the clock with a PLL would
probably
solve all that.
Op 22 mei 2009, om 08:05 heeft acousmatique het volgende geschreven:
> Any chance of posting the ROMs here? I understand your not wanting
> to support people's tinkering with the wavetable circuits anymore,
> but it'd be cool to hear them. I am getting back into perfboard and
> working on a VCDO now, basically based on the CGS and Digisound. For
> VCO I have an SSM2030 which might work, but I will most likely see
> if I can make something with XR2206.
>
> I am certain I can build the circuit, but I am still not so sure
> about creating the tables. How did you go about creating them, Ken?