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#1 2009-08-04 18:01:10
- gladstone
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- Registered: 2009-01-03
- Posts: 74
Issues with physical MIDI I/O and ALSA
I have an EMU-1616m that is all working fine, apart from the physical MIDI I/O.
I'm trying to play a test midi file to output to my external synth (using aplaymidi -p 16:0 test.mid), but there is no sound. The wavetable ports work fine. I also cant get any MIDI input (to Rosegarden).
Physical connections and the external synth (MIDI keyboard) is working fine as all is well in Windows.
Any ideas of what I can try?
Last edited by gladstone (2009-08-04 18:02:32)
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#2 2009-08-08 10:54:24
- djszapi
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- From: Cambridge, United Kingdom
- Registered: 2009-06-14
- Posts: 1,439
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Re: Issues with physical MIDI I/O and ALSA
Hello Gladstone
Did you read these wiki pages, when you configured the settings?
http://wiki.archlinux.org/index.php/Timidity
http://wiki.archlinux.org/index.php/ALSA
and this thread?
http://bbs.archlinux.org/viewtopic.php?id=51620
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#3 2009-08-08 23:20:37
- gladstone
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- Registered: 2009-01-03
- Posts: 74
Re: Issues with physical MIDI I/O and ALSA
djszapi,
Thanks for you input but I'm using a "real" external synth rather than a soft-synth (Timidity).
From other discussions I've been having, this issue is most likely caused by a driver/firmware bug in ALSA.
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#4 2009-08-09 05:03:47
- djszapi
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- From: Cambridge, United Kingdom
- Registered: 2009-06-14
- Posts: 1,439
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Re: Issues with physical MIDI I/O and ALSA
In that case it's worth to report it to the author, if it's alsa related bug.
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#5 2009-08-10 06:13:31
- rekado
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- From: Shanghai, China
- Registered: 2009-01-13
- Posts: 98
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Re: Issues with physical MIDI I/O and ALSA
Have you tried sending raw MIDI messages via amidi already? You could try sending those three bytes: 0x90 0x3F 0x7F (first channel: note on, note somewhere in the middle range, maximum velocity [127]).
Also, you could verify that MIDI input works by dumping everything amidi receives (syntax is something like amidi -d -p ...).
I'm working on MIDI via my microcontroller's USART (and the kernel module snd_serial_u16550) and use amidi to monitor the connection often. I don't know if it would work in your setup, though.
musician & coder
http://elephly.net
http://github.com/rekado
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