Archive of the former Yahoo!Groups mailing list: MOTM

previous by date index next by date
previous in topic topic list next in topic

Subject: RE: [motm] Quad Quantizer: need your inputs

From: "Adam Schabtach" <lists@...>
Date: 2007-08-26

Suggestion: use MIDI rather than a USB port for downloading user scales. MIDI already has a defined protocol for transferring tuning tables within sysex files; see http://www.midi.org/about-midi/tuning.shtml If standard sysex files are used to transfer the information, then no host apps need to be written; existing programs such as Scala can be used to generate the sysex files. Users can share sysex files regardless of their OS of choice (Windows, OS X, Linux, etc.).
 
--Adam

From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On Behalf Of Paul Schreiber
Sent: Sunday, August 26, 2007 9:22 AM
To: MOTM List
Subject: [motm] Quad Quantizer: need your inputs

A "fallout" of designing the expansion module for the Cloud Generator is a
nice 4ch (quad) quantizer in a 2U wide panel.

The UI is a 16ch x 2 line LCD with 4 rotary encoders. These select the scale
for each channel. LCD displays the scale name. For a relatively small price,
I can add a USB port to allow downloading of your own scales (as long as I
have people willing to write the host app).

I could aso have 4 pots for transposing the scale (say in 1 semitone steps).

And, there could be a "cascaded S&H mode" where there is a clock (int or
ext) to sample input #1, next pulse #1 is copied to #2, etc ("analog shift
register"). Maybe that UI is a 3-position toggle with:

QUANTIZE
SH NORM
SH SHIFT

Normal is 4 independent S&H channels (sharing the common clock).

I suppose one could go "nuts" and make a super-PSIM whiz-bang but maybe that
is later down the road. I want something with less than 1 man-year of SW
development :)

So, show me you panel mockups/feature list. The LCD is 80mm lond and 35mm
wide. There are 2 encoders on the top and 2 on the bottom.

Paul S.