• Please review our updated Terms and Rules here

M-ACPA MIDI Mapping Confusion [Help!]

ardent-blue

Experienced Member
Joined
Jan 2, 2015
Messages
461
M-ACPA MIDI Mapping Page has been created. Trying to understand the correct mapping for the M-ACPA under Win3.x and Win9x. Track? Channel? Any difference?

The SIMMple stuff: Base, Extended, and General mapping. Czech! Where I am lost is the Percussion Track, possumbly on all three mappings.

Microsoft format
Extended synthesizers [lower tracks, 1-10] has 16-note polyphony
Base synthesizers [higher tracks, 13-16] has 6-note polyphony.
Each version is complete with a percussion track. [which track?]

General MIDI format
All sixteen tracks are available for one song with 24-note polyphony. Track ten is used for percussion. [Important!]

"ACPA Base MIDI" map set *must* only enable Channels 13 to 16 to the same output channels.
NOTE: Most General MIDI files will not play at all. Full 6-note polyphony can be achieved. Microsoft files can be played.

So which channel is Percussion? 10?

"ACPA Ext. MIDI" map set *must* only enable Channels 1 to 10 to the same output channels.
NOTE: Extended synthesizers cannot achieve 16 note polyphony, but most General MIDI files will play as is. Microsoft files will also play as is.

Isn't Channel 10 already being used? Or is already Percussion?

"ACPA Gen. MIDI" map set *must* route input Channel 16 to output Channel 10 to correctly assign the GM Percussion channel to the M-ACPA Percussion waveforms, otherwise it's a full 1-1 16-Channel map.

NOTE: How is Input Channel 10 mapped to any Output -IF- Input Channel 16 is mapped to Output Channel 10?
 
Last edited:
Back
Top