📄 e721. setting the volume of playing midi audio.txt
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// To create a Sequencer object, see e716 Loading and Playing Midi Audio
if (sequencer instanceof Synthesizer) {
Synthesizer synthesizer = (Synthesizer)sequencer;
MidiChannel[] channels = synthesizer.getChannels();
// gain is a value between 0 and 1 (loudest)
double gain = 0.9D;
for (int i=0; i<channels.length; i++) {
channels[i].controlChange(7, (int)(gain * 127.0));
}
}
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