Java sequencer loops with a delay if connected to external Midi out device
I want to loop a Midi sequence using the Java sequencer and its setLoopCount() method.
If sequencer's output is connected to an external Midi out device, there is a noticeable lag introduced each time sequence loops over.
If sequencer's is connected to the internal Java synth (Gervill) I don't notice any delay between loops. I tried with different loop points, it does not change the problem. I'm using Win10/Java 8.
sequencer = MidiSystem.getSequencer(false);
sequencer.open();
Sequence sequence = MidiSystem.getSequence(midiFile);
sequencer.setSequence(sequence);
// outDevice=Java synth (Gervill)
// or
// outDevice=Edirol UA-25 (USB)
Receiver outDeviceReceiver = outDevice.getReceiver();
Transmitter seqTransmitter = sequencer.getTransmitter();
seqTransmitter.setReceiver(outDeviceReceiver);
int startLoopTick = 0;
int endLoopTick = -1; // Loop at end of sequence
sequencer.setLoopStartPoint(startLoopTick);
sequencer.setLoopEndPoint(endLoopTick);
sequencer.setLoopCount(Sequencer.LOOP_CONTINUOUSLY);
// if outDevice==Edirol there is a slight delay between loops
sequencer.start();
java midi javasound
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
add a comment |
I want to loop a Midi sequence using the Java sequencer and its setLoopCount() method.
If sequencer's output is connected to an external Midi out device, there is a noticeable lag introduced each time sequence loops over.
If sequencer's is connected to the internal Java synth (Gervill) I don't notice any delay between loops. I tried with different loop points, it does not change the problem. I'm using Win10/Java 8.
sequencer = MidiSystem.getSequencer(false);
sequencer.open();
Sequence sequence = MidiSystem.getSequence(midiFile);
sequencer.setSequence(sequence);
// outDevice=Java synth (Gervill)
// or
// outDevice=Edirol UA-25 (USB)
Receiver outDeviceReceiver = outDevice.getReceiver();
Transmitter seqTransmitter = sequencer.getTransmitter();
seqTransmitter.setReceiver(outDeviceReceiver);
int startLoopTick = 0;
int endLoopTick = -1; // Loop at end of sequence
sequencer.setLoopStartPoint(startLoopTick);
sequencer.setLoopEndPoint(endLoopTick);
sequencer.setLoopCount(Sequencer.LOOP_CONTINUOUSLY);
// if outDevice==Edirol there is a slight delay between loops
sequencer.start();
java midi javasound
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
This sounds like a bug in your particular Java implementation.
– CL.
Jan 3 at 7:16
I use Oracle JDK 8 for Win10 x64. Is there alternatives ?
– jjazzboss
Jan 4 at 19:42
add a comment |
I want to loop a Midi sequence using the Java sequencer and its setLoopCount() method.
If sequencer's output is connected to an external Midi out device, there is a noticeable lag introduced each time sequence loops over.
If sequencer's is connected to the internal Java synth (Gervill) I don't notice any delay between loops. I tried with different loop points, it does not change the problem. I'm using Win10/Java 8.
sequencer = MidiSystem.getSequencer(false);
sequencer.open();
Sequence sequence = MidiSystem.getSequence(midiFile);
sequencer.setSequence(sequence);
// outDevice=Java synth (Gervill)
// or
// outDevice=Edirol UA-25 (USB)
Receiver outDeviceReceiver = outDevice.getReceiver();
Transmitter seqTransmitter = sequencer.getTransmitter();
seqTransmitter.setReceiver(outDeviceReceiver);
int startLoopTick = 0;
int endLoopTick = -1; // Loop at end of sequence
sequencer.setLoopStartPoint(startLoopTick);
sequencer.setLoopEndPoint(endLoopTick);
sequencer.setLoopCount(Sequencer.LOOP_CONTINUOUSLY);
// if outDevice==Edirol there is a slight delay between loops
sequencer.start();
java midi javasound
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
I want to loop a Midi sequence using the Java sequencer and its setLoopCount() method.
If sequencer's output is connected to an external Midi out device, there is a noticeable lag introduced each time sequence loops over.
If sequencer's is connected to the internal Java synth (Gervill) I don't notice any delay between loops. I tried with different loop points, it does not change the problem. I'm using Win10/Java 8.
sequencer = MidiSystem.getSequencer(false);
sequencer.open();
Sequence sequence = MidiSystem.getSequence(midiFile);
sequencer.setSequence(sequence);
// outDevice=Java synth (Gervill)
// or
// outDevice=Edirol UA-25 (USB)
Receiver outDeviceReceiver = outDevice.getReceiver();
Transmitter seqTransmitter = sequencer.getTransmitter();
seqTransmitter.setReceiver(outDeviceReceiver);
int startLoopTick = 0;
int endLoopTick = -1; // Loop at end of sequence
sequencer.setLoopStartPoint(startLoopTick);
sequencer.setLoopEndPoint(endLoopTick);
sequencer.setLoopCount(Sequencer.LOOP_CONTINUOUSLY);
// if outDevice==Edirol there is a slight delay between loops
sequencer.start();
java midi javasound
java midi javasound
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
edited Jan 2 at 22:04
jjazzboss
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
asked Jan 2 at 19:21
jjazzbossjjazzboss
165
165
This sounds like a bug in your particular Java implementation.
– CL.
Jan 3 at 7:16
I use Oracle JDK 8 for Win10 x64. Is there alternatives ?
– jjazzboss
Jan 4 at 19:42
add a comment |
This sounds like a bug in your particular Java implementation.
– CL.
Jan 3 at 7:16
I use Oracle JDK 8 for Win10 x64. Is there alternatives ?
– jjazzboss
Jan 4 at 19:42
This sounds like a bug in your particular Java implementation.
– CL.
Jan 3 at 7:16
This sounds like a bug in your particular Java implementation.
– CL.
Jan 3 at 7:16
I use Oracle JDK 8 for Win10 x64. Is there alternatives ?
– jjazzboss
Jan 4 at 19:42
I use Oracle JDK 8 for Win10 x64. Is there alternatives ?
– jjazzboss
Jan 4 at 19:42
add a comment |
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This sounds like a bug in your particular Java implementation.
– CL.
Jan 3 at 7:16
I use Oracle JDK 8 for Win10 x64. Is there alternatives ?
– jjazzboss
Jan 4 at 19:42