What's the method to control volume in an MIDI sequencer?

Question

Can someone show me how to control the volume of an MIDI sequencer without using a sound bank or synthesizer?

I want to make the MIDI fade out before continuing to the next MIDI in sequence

            if(midiplay)
            {

                midi = s + savereq;
                try {
                    //System.out.println("Play MIDI " + midi);
                    if (musicSr != null)
                    {
                                               /* This is where I want it to fade out*/
                        musicSr.stop(); //stop sequencer
                        musicSr.close(); //close sequencer
                    }
                    musicSr = null; 
                    musicS = null;

                    File music = new File(midi);
                    if(music.exists())
                    {
                        musicS = MidiSystem.getSequence(music);
                    }

                    // Create a sequencer for the sequence
                    musicSr = MidiSystem.getSequencer();
                            musicSr.open();
                            musicSr.setSequence(musicS);
                            musicSr.setLoopCount(musicSr.LOOP_CONTINUOUSLY);
                            musicSr.start();

                } catch (Exception ex) {
                    ex.printStackTrace();
                }


                midiplay = false;

            }

possible duplicate of [How to controll the MIDI channel's volume](http://stackoverflow.com/questions/8008286/how-to-controll-the-midi-channels-volume) — Oliver Charlesworth, Sep 24 '13 at 22:06
@OliCharlesworth that question has synthesizer and sound banks, which I am not using. — Ravekitty, Sep 24 '13 at 22:11
@DiegoCNascimento How would I do that? Can I have a snippet/example of use — Ravekitty, Sep 24 '13 at 22:12
To face out, you use the volume controller as explained in the "How to controll the MIDI channel's volume" question linked by Oli. — Bjorn Roche, Sep 25 '13 at 02:53

score 4 · Accepted Answer · answered Sep 25 '13 at 08:05

Call getSequence to get the Sequence;
call getTracks to get the list of tracks;
in each track, for each channel used in the track, call add to add multiple events at the appropriate time positions:
```
track.add(new MidiEvent(
    new ShortMessage(ShortMessage.CONTROL_CHANGE, channel, 7, volume),
    tick));
```
maybe remove other volume change events (that would interfere with your fadeout) from the track;
wait a little time for the fadeout to happen.

What's the method to control volume in an MIDI sequencer?

1 Answers1

Linked