[sdiy] MiniWave EPROMS

[Grant Richter]

The Waveform City and Wiard Mini-Wave use 8 bit converters for Wave and Bank
select. Only 4 of the 8 bits are used. This was done for positive select
action. 4 Bits out of 8 gives very positive select with no dithering in
between. 16 positions is all you can practically digitize a pot to for live
performance use. Even 32 starts to get dicey.

But the Wave and Bank select bits are available to hotwire a very large
EPROM in. Up to 256 waveforms per Bank and 256 Banks or 65536 total
waveforms. This is unmanageable for practical use. But the Mini-Wave can be
used as the basis of a laboratory Frankenwave(TM) Monster (for the 3 people
so inclined, John Blacet and I can't do everything for you guys ;^)

> From: "Paul Maddox" <Paul.Maddox at wavesynth.com>
> Reply-To: owner-synth-diy at node12b53.a2000.nl
> Date: Mon, 19 Mar 2001 00:11:27 -0000
> To: "harry" <harrybissell at prodigy.net>, "Byron G. Jacquot"
> <thescum at surfree.com>
> Cc: <synth-diy at node12b53.a2000.nl>
> Subject: Re: [sdiy] Matrix keyboard idea
> 
> Harry,
> 
>> It does this sort of thing... but its 8 bit. You 'could' hack it if you
> like.
>> Its has 16 banks of 16x256 wave tables
> 
> <BUZZZZ> wrong
> 
> 16 banks of 16 WAVEFORMS
> 256 WAVEFORMS
> 
> not tables :-)
> 
> Though if Grant would like to extend it to 64 waveforms per bank and 32
> banks I could send him an
> interesting eprom :-) (2048 waveforms, 32 WAVETABLES)
> 
> Paul Maddox
> 
> 
> 
>