ODP: Bill's Bits

[Roman Sowa]

Hi all,

I have this silly idea of using DSP as a VCO. Here's how:

ADC (or maybe few ADCs) is the voltage input.
DSP runs few phase-accumulating DCOs with lookup tables
and, say 16 DACs produce nice waves
although one stereo 16-bit S-D DAC would be the simplest
and cheappest way for clean waveforms
And DSPs start from $9! (at least for me)

Roman


> -----Oryginalna wiadomość-----
> Od:	Dr S Grainger [SMTP:steveg at bss10a.staffs.ac.uk]
> Wysłano:	30 października 1998 11:02
> Do:	synth-diy at mailhost.bpa.nl
> Temat:	Bill's Bits
> 
> Dear All,
> 
> 	The hybrid stuff seems to have stimulated some interesting
> 	response.
> 
> 	Yes the DCO/VCO debate rages on - and long may it do so !
> 
> 	With the wavetable ideas I'm mainly interested in the phase-
> 	accumulating oscillator idea whereby the sampling replay
> 	rate is constant.