[jmsl] Playing Through An External Midi Device

jmsl at music.columbia.edu jmsl at music.columbia.edu
Wed Apr 15 10:16:29 EDT 2009 

Select the output device from jmsl like this:

JMSL.midi.setOutDevice(3);   // 3 is my presonus midi out device id
JMSL.midi.open();

Thanks
Nick

jmsl at music.columbia.edu wrote:
> Thanks so much for the speedy update! How can I select the output 
> device from jmsl? I tried to look for Midi Device editor in javadoc, 
> but couldn't find it.
>
> Chi
> ----- Original Message ----- From: <jmsl at music.columbia.edu>
> To: <jmsl at music.columbia.edu>
> Sent: Wednesday, April 15, 2009 1:48 AM
> Subject: Re: [jmsl] Playing Through An External Midi Device
>
>
>> Hi Chi
>>
>> I have a prerelease posted at http://www.algomusic.com/prerelease/
>> This prerelease include MidiIO_JavaSound support of external output 
>> devices (not input devices yet)
>> Thanks very much for your work on this!  It helped me get this rolled 
>> into JMSL in a straightforward manner....
>>
>> Oddly, JavaSound's device indexes do not distinguish between input 
>> and output devices, so people that use the Midi Device editor will 
>> see the input list is the same as the output list, with all devices 
>> listed in each... I'll fix that later.
>>
>> Don't celebrate the timestamps too soon! Even though there is an 
>> argument for timestamps, none of the midi devices I have support the 
>> time stamp. I think it's there as a place holder. I understand the 
>> only way to get accurate MIDI from JavaSound is to use their Real 
>> Time Sequencer. Something to look at. But right now, this works OK: 
>> you can select the midi output device and JMSL.midi will send!  For 
>> this prerelease MidiIO_JavaSound is the default midi device for 
>> JMSL.  But right now if people want rhythmically accurate MIDI 
>> output, use MidiShare
>>
>> A summary of changes since last prerelease follows (note there's a 
>> bunch of music font stuff there, so if any of you have Sonata music 
>> font installed you'll see that JMSL Score looks quite different now!)
>>
>> Thanks,
>> Nick Didkovsky
>>
>> JMSL PRERELEASE 20090414
>> 12/13/08    Fixed bug in 
>> com.softsynth.jmsl.score.midi.WriteScoreMidiFile. Chord Intervals 
>> with Midi Velocities greater than 1 were being multiplied by 128, 
>> erroneously assuming they were amplitudes. Fixed, thanks Georg Hajdu
>> 12/13/08    MIDIFileToMusicShape now taking absolute values of meta 
>> time signature data. Greg Wilder provided 2 MIDI files which included 
>> negative time signatures that crashed the midi file transcriber.
>> 12/27/08    TiedNoteAccumulator sets hold time to accumulated 
>> duration. This fixes the problem Joel Mellin discovered when the 
>> transcriber extends long hold times with tied notes    and lets them 
>> sustain the full hold time.
>> 02/02/09    LilyPond export handles colored noteheads now. Thanks 
>> Joel Mellin for feature request. See jmsltestsuite.TwoTracksPerStaff
>> 02/02/09    Notehead color attribute saved and loaded to/from score xml
>> 02/02/09    Punos Music plug-in with text-only color chooser for 
>> Notehead Color. "NoteHeadColorTransform". Not a serious color chooser 
>> gui.
>> 03/06/09    Music Font Rendering using Sonata font, major progress. 
>> noteheads, clefs, stems, expression marks, dynamics, time signatures
>> 03/06/09    Bug fix: clicking on score canvas triggered two renders. 
>> Removed extra call to score.render()
>> 04/06/09    ScoreFrame has support to use JavaSound MIDI, searches 
>> for soundbank.gm in classpath/javasound
>> 04/06/09    run_jmsl_score scripts now include ../classes in 
>> classpath (so that javasound/soundbank.gm can be found)
>> 04/8/09      MusicGlyphRenderers are per Score now, not static any more
>> 04/14/09    Support for external MIDI devices in JavaSound MIDI 
>> (Thanks Chi!)
>> 04/14/09    Default JMSL.midi is now MidiIO_JavaSound (no longer 
>> MidiShare)
>>
>>
>>
>> jmsl at music.columbia.edu wrote:
>>> I'm glad it worked. It even supports time stamp, so it's time to 
>>> ditch MidiShare and move to applet! :) JavaSound seem to have bunch 
>>> of other stuff for midi (like writing midi file to OutputStream), so 
>>> it might be worth checking out the program guide when you get a chance.
>>> How long do you think will take to implement external Midi device 
>>> support with JavaSound? Let me know when you release new jmsl update.
>>> Thanks,
>>>
>>> Chi
>>> ----- Original Message ----- From: <jmsl at music.columbia.edu>
>>> To: <jmsl at music.columbia.edu>
>>> Sent: Tuesday, April 14, 2009 10:43 PM
>>> Subject: Re: [jmsl] Playing Through An External Midi Device
>>>
>>>
>>>> OK! I can successfully send midi notes to an external piano module 
>>>> using this code. I tested it with two different MIDI interfaces: 
>>>> XSession and Presonus Firepod
>>>> Works great!
>>>> thanks
>>>> Nick
>>>>
>>>>
>>>> jmsl at music.columbia.edu wrote:
>>>>> Run this and then select the device from the console. It'll play a 
>>>>> short note.
>>>>> device.getMicrosecondPosition();
>>>>> This method returns -1 if the device ignores time stamps. 
>>>>> Otherwise, it returns the device's current notion of time, which 
>>>>> you as the sender can use as an offset when determining the time 
>>>>> stamps for messages you subsequently send. For example, if you 
>>>>> want to send a message with a time stamp for five milliseconds in 
>>>>> the future, you can get the device's current position in 
>>>>> microseconds, add 5000 microseconds, and use that as the time 
>>>>> stamp. Keep in mind that the MidiDevice's notion of time always 
>>>>> places time zero at the time the device was opened.
>>>>>
>>>>>
>>>>> import java.io.BufferedReader;
>>>>>
>>>>> import java.io.IOException;
>>>>>
>>>>> import java.io.InputStreamReader;
>>>>>
>>>>> import javax.sound.midi.InvalidMidiDataException;
>>>>>
>>>>> import javax.sound.midi.MidiDevice;
>>>>>
>>>>> import javax.sound.midi.MidiSystem;
>>>>>
>>>>> import javax.sound.midi.MidiUnavailableException;
>>>>>
>>>>> import javax.sound.midi.ShortMessage;
>>>>>
>>>>>
>>>>> public class Test {
>>>>>
>>>>> public static void main(String args[]) throws 
>>>>> InvalidMidiDataException, MidiUnavailableException, IOException {
>>>>>
>>>>>
>>>>> MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();
>>>>>
>>>>> for (int i = 0; i < infos.length; i++) {
>>>>>
>>>>> System.out.println(i+": "+infos[i]);
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>> BufferedReader bf = new BufferedReader(new 
>>>>> InputStreamReader(System.in));
>>>>>
>>>>> System.out.println("Which device?");
>>>>>
>>>>> int n = 0;
>>>>>
>>>>> try {
>>>>>
>>>>> n = Integer.parseInt(bf.readLine());
>>>>>
>>>>> } catch (NumberFormatException e) {}
>>>>>
>>>>>
>>>>> MidiDevice device = null;
>>>>>
>>>>> try {
>>>>>
>>>>> device = MidiSystem.getMidiDevice(infos[n]);
>>>>>
>>>>> } catch (MidiUnavailableException e) {}
>>>>>
>>>>> if (!(device.isOpen())) {
>>>>>
>>>>> try {
>>>>>
>>>>> device.open();
>>>>>
>>>>> } catch (MidiUnavailableException e) {
>>>>>
>>>>> // Handle or throw exception...
>>>>>
>>>>> }
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>> ShortMessage msg = new ShortMessage();
>>>>>
>>>>> msg.setMessage(ShortMessage.NOTE_ON, 0, 60, 93);
>>>>>
>>>>> long timeStamp = -1;
>>>>>
>>>>> javax.sound.midi.Receiver rcvr = device.getReceiver();
>>>>>
>>>>> rcvr.send(msg, timeStamp);
>>>>>
>>>>> System.exit(0);
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message ----- From: <jmsl at music.columbia.edu>
>>>>> To: <jmsl at music.columbia.edu>
>>>>> Sent: Tuesday, April 14, 2009 11:50 AM
>>>>> Subject: Re: [jmsl] Playing Through An External Midi Device
>>>>>
>>>>>
>>>>>> Hi Chi
>>>>>>
>>>>>> Please help me out here, I don't have a lot of resources 
>>>>>> currently to work on this.  If you can do the following in a few 
>>>>>> lines of pure Java (no JMSL at all), then I will implement it in 
>>>>>> JMSL's JavaSound support
>>>>>>
>>>>>> If someone already knows how to do this, please share it here.
>>>>>>
>>>>>> You already know how to enumerate through midi device info.
>>>>>>
>>>>>> You can create a MidiDevice using minfo like this:
>>>>>> MidiDevice mdev = MidiSystem.getMidiDevice(infos[i]);
>>>>>>
>>>>>> Your challenge is to open the mdev you want, get the transmitter 
>>>>>> or receiver or whatever it is one needs to do to send a midi 
>>>>>> message out to it, and send it a simple MidiMessage like a noteon.
>>>>>> I've tried it but cannot get a receiver or a transmitter for 
>>>>>> these midi devices, I just get nulls or exceptions.  Something's 
>>>>>> missing and I don't know what it is.
>>>>>>
>>>>>> My code follows...
>>>>>> MidiDevice.Info[] minfo= MidiSystem.getMidiDeviceInfo();
>>>>>> for (int i = 0; i < minfo.length; i++) {
>>>>>>                MidiDevice mdev = MidiSystem.getMidiDevice(minfo[i]);
>>>>>>                String info = minfo[i].getDescription() + ", " +
>>>>>>                minfo[i].getName() + ", " +
>>>>>>                minfo[i].getVendor() + ", " +
>>>>>>                minfo[i].getVersion();
>>>>>>                System.out.println("\nDevice " + i + " = " + 
>>>>>> minfo[i] + " ... " + mdev.toString());
>>>>>>                System.out.println("CLASS: " + mdev.getClass());
>>>>>>                mdev.open();
>>>>>>                try {
>>>>>>                    System.out.println("transmitter for this: " + 
>>>>>> mdev.getTransmitter());
>>>>>>                    System.out.println("receiver for this : " + 
>>>>>> mdev.getReceiver());
>>>>>>                } catch (MidiUnavailableException e) {
>>>>>>                    System.out.println("can't get transmitter or 
>>>>>> receiver for this");
>>>>>>                }               mdev.close();
>>>>>> }
>>>>>>
>>>>>> Thanks
>>>>>> Nick
>>>>>>
>>>>>> jmsl at music.columbia.edu wrote:
>>>>>>> How can I hookup JavaSound ports to JMSL? If I do this I can see 
>>>>>>> all the external midi devices I have on my computer.
>>>>>>>
>>>>>>> MidiDevice.Info[] infos = MidiSystem.getMidiDeviceInfo();
>>>>>>> for (int i = 0; i < infos.length; i++) {
>>>>>>>    System.out.println(infos[i]);
>>>>>>> }
>>>>>>>
>>>>>>> /*
>>>>>>> Result:
>>>>>>> USB Audio Device
>>>>>>> Microsoft MIDI Mapper
>>>>>>> USB Audio Device
>>>>>>> SB X-Fi Synth A [BC00]
>>>>>>> SB X-Fi Synth B [BC00]
>>>>>>> Microsoft GS Wavetable SW Synth
>>>>>>> Real Time Sequencer
>>>>>>> Java Sound Synthesizer
>>>>>>> */
>>>>>>>
>>>>>>> If I do this, I get an error.
>>>>>>> JMSL.midi = MidiIO_JavaSound.instance();
>>>>>>> String[] deviceNames = JMSL.midi.getOutputDeviceNames();
>>>>>>> System.out.println("There are " + deviceNames.length + "midi 
>>>>>>> devices.");
>>>>>>> for (int i=0; i<deviceNames.length; i++) {
>>>>>>> System.out.println(deviceNames[i]);
>>>>>>> }
>>>>>>>
>>>>>>> /*
>>>>>>> Result:
>>>>>>> There are 1midi devices.
>>>>>>> Unimplemented
>>>>>>> */
>>>>>>>
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>>>>>
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