14 Apr
2006
14 Apr
'06
1:09 p.m.
Hi there !
I don't know if asking that kind of question here is a good thing, but I try !
I am working on a little software for a work in my university. Its way
of working is very simple : It gets MIDI events from a (virtual) port,
modify them, and then send MIDI events to a (virtual) MIDI port.
Typically, it looks like this :
Instrument MIDI Output ---> My software ---> Input Soft Synth
My problem is about opening those virtuals MIDI ports. I know how to do
that with the ALSA API, but I would like to get that job done in Java.
In fact, I wanna code my whole sofware in Java.
I read somewhere
(http://jsresources.sourceforge.net/faq_midi.html#connect_midi) that
the native apps MIDI ports of the ALSA system where reachable in the
Java 5 Sound API (as MidiDevice) when the virmidi module is loaded.
Well, I loaded it, listed every MidiDevice availables on the Java
System with a little piece of Java code, but I can't see, for example,
the vkeybd Output port or the FluidSynth Input port !
Could someone help me ? :'(
Cheers,
AD
14 Apr
14 Apr
1:14 p.m.
My problem is about opening those virtuals MIDI ports.
I know how to
do that with the ALSA API, but I would like to get that job done in
Java. In fact, I wanna code my whole sofware in Java.
JSynthLib optionally uses Tritonus as a MIDI provider; I guess it's what
you want to use.
Best regards
ce
2:30 p.m.
Christoph Eckert <ce(a)christeck.de> wrote :
Tritonus seems to be an old project (no release since september 2000)
and to be tricky to get working. Using the JAVA Sound API would be more
elegant, in my opinion...
In the link given in my previous post, it is told that accessing
natives applications MIDI ports is possible, so I would prefer to use
that way. Does someone did that yet ?
Thank you,
AD
My problem is
about opening those virtuals MIDI ports. I know how to
do that with the ALSA API, but I would like to get that job done in
Java. In fact, I wanna code my whole sofware in Java.
JSynthLib optionally uses Tritonus as a MIDI provider; I guess it's what
you want to use. 
3:33 p.m.
Adrien DANIEL wrote:
Instrument MIDI Output ---> My software --->
Input Soft Synth
It might be totally besides the point, but (depending on what kind of
processing you plan on doing) this looks alot like ace, a piece of
python I wrote. You can have a look at:
http://www.atte.dk/ace
--
peace, love & harmony
Atte
http://www.atte.dk
http://www.atte.dk/gps
4:07 p.m.
Atte André Jensen <atte.jensen(a)gmail.com> wrote :
Adrien DANIEL wrote:
Thank you very much, I'll take a look at it. However, I would like to
write my app in Java.
AD
Instrument MIDI Output ---> My software
---> Input Soft Synth
It might be totally besides the point, but (depending on what kind of
processing you plan on doing) this looks alot like ace, a piece of
python I wrote. You can have a look at:
http://www.atte.dk/ace 
5:11 p.m.
On Fri, Apr 14, 2006 at 05:09:40PM +0200, Adrien DANIEL wrote:
Hi there !
I don't know if asking that kind of question here is a good thing, but I
try !
I am working on a little software for a work in my university. Its way
of working is very simple : It gets MIDI events from a (virtual) port,
modify them, and then send MIDI events to a (virtual) MIDI port.
Typically, it looks like this :
Instrument MIDI Output ---> My software ---> Input Soft Synth
My problem is about opening those virtuals MIDI ports. I know how to do
that with the ALSA API, but I would like to get that job done in Java.
In fact, I wanna code my whole sofware in Java.
first of all: Do not use java. it suxx :)
I read somewhere
(http://jsresources.sourceforge.net/faq_midi.html#connect_midi) that
the native apps MIDI ports of the ALSA system where reachable in the
Java 5 Sound API (as MidiDevice) when the virmidi module is loaded.
the virmidi device acts as a bridge between alsa-seq midi ports and
raw-midi ports. These are two different flavours.
You need to connect your app to the virmidi RAW ports,
then connect the virmidi SEQ ports via aconnect or qjackctl or whatever
although using aconnect seems easy if java has something like the
system(3) call.
Well, I loaded it, listed every MidiDevice availables on the Java
System with a little piece of Java code, but I can't see, for example,
the vkeybd Output port or the FluidSynth Input port !
Could someone help me ? :'(
Cheers,
AD
--
torben Hohn
http://galan.sourceforge.net -- The graphical Audio language
18 Apr
18 Apr
10:05 a.m.
torbenh(a)gmx.de wrote :
the virmidi device acts as a bridge between alsa-seq
midi ports and
raw-midi ports. These are two different flavours.
You need to connect your app to the virmidi RAW ports,
then connect the virmidi SEQ ports via aconnect or qjackctl or whatever
although using aconnect seems easy if java has something like the
system(3) call.
It is working ! Thank you very much !
So, what I did :
- I loaded snd-seq-virmidi ;
- idem for snd-virmidi ;
- In my app : now I can see virmidi RAW ports ;
- I connect natives apps to virmidi SEQ ports (in qjackctl, for example) ;
- In my app : I connect virmidi RAW ports as I want (via Transmitters
and Receivers of all my ports) ;
- Everything works !
Thank you again ! :)
Cheers,
AD
17 Apr
17 Apr
10:50 a.m.
Adrien DANIEL wrote:
I read somewhere
(http://jsresources.sourceforge.net/faq_midi.html#connect_midi) that
the native apps MIDI ports of the ALSA system where reachable in the
Java 5 Sound API (as MidiDevice) when the virmidi module is loaded.
Well, I loaded it, listed every MidiDevice availables on the Java
System with a little piece of Java code, but I can't see, for example,
the vkeybd Output port or the FluidSynth Input port !
How Java's MidiDevice ports are mapped to real ports depends on the
virtual machine. Which one are you using, and how is its MIDI support
configured?
What is the list output by your program? What is the output of
"amidi -l" and "aplaymidi -l"?
Regards,
Clemens
6796
days inactive
6800
days old
linux-audio-user@lists.linuxaudio.org
7 comments
5 participants
participants (5)
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Adrien DANIEL -
Atte André Jensen -
Christoph Eckert -
Clemens Ladisch -
torbenh＠gmx.de