[sdiy]CV-Quantizer/Wavetable Ocs and static RAM = Quantix8

[m.bareille at free.fr]

Hello :)

I have uploaded two homemade videos on YouTube of my new module, named  the
"Quantix8". It is a RAM CV-Quantizer,/Wavetable ocs module fully editable in
real time by MIDIIt is a melt/fusion of an CV-quantiser/Wavetable with a MIDI 
eprom emulator ;)

http://fr.youtube.com/watch?v=kMETs31mIJs
http://fr.youtube.com/watch?v=sqBdXgT-3eQ

This module is in fact quite similar to any eprom CV-Quantizer/Wavetable but i
have replaced the eprom by a 1Mbit static RAM chip plus a PIC with a consistant
MIDI sysex protocol to manage it. The static RAM contain two matrix of 16x16
waveforms of 256 samples ( 8 bits)...Waveforms are CV selectable ( bank/wave).

I have also writen a complete wavetable editor software for PC(9x/XP) to
transmit/receive waveforms and other parameters.  This software include a 1V/Oct
quantized CV scale generator who can compute all the possible scales playable
with 12 notes and also a more 'classic' waveform generator, morphers, etc...

Notes about videos :
- i made them with a cheap web cam ...so sorry for the artistic blurrrr...

- they have been recorded on the same PC used for the demo and it is a very old
machine ( 1Ghz amd) running under winME ( the worse OS for multimedia,even 98 is
better! ) so all midi transmission you can see on those videos are hardly slowed
down ! By an average factor of 10 compared to the normal situation : when
i do not record a movie while sending sysex as a mad man to the Quantix8...

- the scope monitors what's happen on the Quantix8 output

- the Quantix8 input ( fast ADC, an LTC1099)  is driven by a BF generator ( the
box on the scope) set for the demo at the arbitrary value of 5KHz ;) As this BF
generator do not provide a SAW waveform (sic), i have used a Triangle and set
the scope to show only the up ramp to parse all the RAM lsb adresses...

More to comme on my web site very soon :)

Cheers,

Marc b.

Papareil Synth Labs
http://m.bareille.free.fr