Some Channel mode and Control change msgs - any idea what the Controller-Nrs are? \ VOGONS

Some Channel mode and Control change msgs - any idea what the Controller-Nrs are?

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First post, by llm

Posted on 2021-07-12, 07:26

llm Offline

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1static inline void send_control_or_mode_change_midi_msg(uint8_t channel_, uint8_t controller_nr_, uint8_t controller_value_)
2{
3  //(channel_ <= 15)
4  //(controller_nr_ <= 119) ==> Control change
5  //(controller_nr_ > 119) ==> Channel mode message
6  send_midi_msg3(0xB0u + BITS4(channel_), BITS7(controller_nr_), BITS7(controller_value_)); 
7}

these are hardcoded calls in the game that im reversing - im trying to figure out what the controller-nrs are and what the values or value-ranges are allowed

https://www.midi.org/specifications-old/item/ … of-midi-message
https://www.midi.org/specifications-old/item/ … es-data-bytes-2
https://nickfever.com/Music/midi-cc-list

1send_control_or_mode_change_midi_msg(channel_, 0x7B /*123*/, 0);  // Channel mode message --> All Notes Off?
2send_control_or_mode_change_midi_msg(channel_, 0x79 /*121*/, 0); // Channel mode message --> Reset All Controllers?
3send_control_or_mode_change_midi_msg(channel_, 0x07, velocity); // Control change --> Channel Volume (formerly Main Volume)?
4send_control_or_mode_change_midi_msg(channel_, 0x0A, velocity); // Control change --> Pan?
5send_control_or_mode_change_midi_msg(channel_, 0x01, velocity); // Control change --> Modulation Wheel or Lever?

Last edited by llm on 2021-07-12, 08:44. Edited 1 time in total.

Reply 1 of 3, by sergm

Posted on 2021-07-12, 07:53

sergm Offline

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llm wrote on 2021-07-12, 07:26:
these are hardcoded calls in the game that im reversing - im trying to figure out what the controller-nrs are and what the values or value-ranges are allowed

If you are interested in details of the MT-32 MIDI implementation, then the standard MIDI specs aren't particularly useful.
I'd recommend to have a look at MIDI IMPLEMENTATION and MIDI IMPLEMENTATION CHART sections of the MT-32 manual that provide interesting information. Another source of knowledge might be our HLE in munt. For example, implemented MIDI messages can be found at
Synth::playMsgOnPart 😉

Reply 2 of 3, by llm

Posted on 2021-07-12, 08:02

llm Offline

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Joined: 2009-01-18, 16:57

thank your for the source link - as usual - the best documentation

Reply 3 of 3, by sergm

Posted on 2021-07-12, 08:20

sergm Offline

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llm wrote on 2021-07-12, 08:02:

thank your for the source link - as usual - the best documentation

Kind of. If I was cloned, I'd write up smth in the wiki... *sigh*

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