4. The Midi data filter and the Midi Control Change message (CC) to SysEx
translator
Midi data filter
To optimize the small bandwith Midi offers we implemented a datafilter inside the SSC
thinning out incoming Mididata before it is mixed with the generated SysEx messages
for sending both to your synth over the SSC's Midi Out jack.
Example: if your synthesizer and the SSC are talking on Midichannel 3, your synth is
completely indifferent about the other 15 Midichannels, so why send data on them? The
SSC just ignores this data and prevents your synth from being fired with them.
What's the benefit? You will get more data bandwith for the 'heavy' SysEx messages
on the route from the SSC's Midi Out to the synth's Midi In, resulting in better timing
of your played notes.
Here is an overview what the SSC filters out and what is passed unprocessed.
Incoming Data on Midi In
Treatment inside SSC
Data sent to Midi Out
System Realtime
Filtered out
Nothing
SysEx-Data
Filtered out
Nothing
Mididata of unused Midichannel
Filtered out
Nothing
Mididata on used Midichannel
excluding CC messages for numbers
11-63
Passed
Same as incoming data
CC messages for numbers 11 to 63
on used Midichannel
Translation into sound changing
SysEx message
SysEx message for
changing the synths
parameter
Please remember: in Bypass Mode all incoming data from Midi In is passed through
without any filtering to the Midi Out jack.
'Midi Control change' message to SysEx translator
Midi hardware sequencers, workstations and software sequencers mostly offer quite
few possibilities for the handling of SysEx data. But they can cope with Midi Control
messages - or in short CC messages - quite well. The most commonly used
Midicontroller (sending CC messages for midicontroller number 1) is the modulation
wheel found on almost any keyboard synth.
Operation Manual 'Stereoping Synth Controller'
V1.2 - 12.2014
© Stereoping Germany, Hattingen 2014
