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group

Exclusive group number for this region.

Examples
group=3

group=334

The group opcode is used together with off_by to make something monophonic.

For example, the flute is by nature a monophonic instrument, so if a flute were recorded with one microphone and had one set of samples, it would make sense to set all its samples to have one group. A guitar is polyphonic, but each string is monophonic, so a six-string guitar would naturally be split into six groups - one per string. In these cases, the group number will be equal to the off_by number.

This is also commonly used with hi-hats - this is an example of where things can get more sophisticated with a large number of groups involved, as it’s possible to set more closed hi-hat sounds mute more open ones, but not vice-versa, and it’s also quite possible that there are separate close mic, overhead and room samples.

group and off_by can also be used in other contexts where one sound should cause another to stop but enforcing monophony is not the goal - for example, a crash cymbal doesn’t need to be monophonic, as allowing the sound to build up is reasonably natural, but if we wanted to implement a cymbal choke, then the crash sounds would be in one group, the choke samples in another.

Type Default Range
integer 0 0 to 4294967296