[sdiy] MIDI notes filter which is also a MIDI converter for Junos ?

[Dave Brown]

This is a real DIY solution but I had similar needs for filtering stuff,
transposing, etc. so I designed a small MIDI-powered processor system.  The
MIDI received stream is parsed to each of the base commands which then
reassemble them for transmission.  You can do whatever you want to the MIDI
stream with it.  The schematics and code is public and on my site at
http://modularsynthesis.com/processor/processor.htm

There isn't much to the schematic if you just want a filter: processor,
crystal and caps, a couple of resistors, and a couple of diodes.  You can
leave off the LED, reset circuit, and of course the switches.  I have a
variety for whatever specialty I need.  This is probably more DIY than you
are interested in.

I use them for changing expression messages to volume messages, filtering
active sensing, transposing midi channels, keyboard splits, and just messing
around - hence the keyboard reverse.

Dave


-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Gil W.
Sent: Friday, December 20, 2013 10:57 AM
To: synth-diy at dropmix.xs4all.nl
Subject: [sdiy] MIDI notes filter which is also a MIDI converter for Junos ?

It come up that I need something which will allow synths like Juno 106, JP6
etc to be able to send midi program change to other synths, without sending
the actually midi notes while playing (meaning that changing preset on the
master synth will change it on the slave synth as well, but when playing the
master synth the slave won't play these notes).

I need either a very cheap interface which will do that, or go with a more
expensive one but which will also act as a MIDI converter to my CV/Gate
and/or DCB synths (Juno 60 / SH101 etc.) ... Anything like that ? Any help
would be much appreciated. 

Thanks !