[sdiy] VC variable bit-rate audio digitizer? help!

[Daniel Araya]

> Date:          Thu, 18 Jul 2002 17:30:15 +0200 (CEST)
> From:          Sebastian Kuehnl <skuehnl at yahoo.de>
> Subject:       RE: [sdiy] VC variable bit-rate audio digitizer? help!
> To:            SDIY <synth-diy at dropmix.xs4all.nl>

> The Blacet/ Wiard wave-modules store nonlinear transform functions on
> EEPROMs a in configuration of 256 functions (or 'waves') consisting
> of 256 samples each, and I suspect that with different addressing,
> and accepting a huge decrease of storage for individual functions of
> course, they could be reconfigured to convert to higher bitrates?
> 
> So obviously there are various known ways to do plain bit rate
> conversion. A much more interesting module, in my opinion, would be
> one that could vary the amplitude quantization _linearly_ from 2
> states to some hi-fi number of states. Is THAT feasible?
> 
> S. Kuehnl

Hi

I think you could do 8bit and down bitreducing  
(i take it that the A/D is 8 bit) with a Wiard Waveform city by 
using the Wave256 progam and create 8 different rampwaves with 
"Amplitude" set to 127 and different "SR divison"-factors and burning 
them on an eprom. When you switch between the waves on the Waveform 
City then you switch in different bit-reducing patterns.

http://www.wiard.com

please correct me if i'm wrong!

/Daniel