How to control the MIDI channel's volume

Question

I have this code:

Synthesizer synthesizer = MidiSystem.getSynthesizer();
synthesizer.open();
Instrument[] instrument = synthesizer.getDefaultSoundbank().getI         


        

Answer 1

You can use CC 7 for setting channel volume.

channel.controlChange(7, value);

see: http://improv.sapp.org/doc/class/MidiOutput/controllers/controllers.html

Answer 2

Sometimes you have some volume events in the midi file so you cannot change channel volume. After getting the sequence, remove these events :

Track[] tracks = sequence.getTracks();
for (Track track : tracks){
for(int i = 0; i < track.size(); i++){
    if(!track.remove(track.get(i))){
        System.out.println("MIDI Event not removed");
    }
}}