[PlanetCCRMA] I Am Told That rawmidi Ports Should Still Be Accessible By Other Apps Even When Jack Is Running

SeanBeeson seanbeeson at gmail.com
Fri Jun 19 01:11:00 PDT 2009

Going twice.... ;-)

Anyone have time to answer if there is an issue with using rawmidi ports
with something else while running Jack the way it is used in the
PlanetCCRMA, if you know? Maybe there is a difference between using Jack2



SeanBeeson wrote:
> Hi List,
> I have been hoping to use amidi to get data dumps from some external
> synths
> I have using commands like amidi -p hw:3,0,2 -r KorgMS2000test1.syx, which
> works fine as long as I am not running Jack. This first came up on
> Rosegarden's user list while discussing RG's limited system exclusive
> capabilies and some of it's devs chimmed in that Jack usually exclusively
> takes over the audio ports only and not the rawmidi ports and that all of
> them could use amidi while running Jack. Most of them were running some
> sort
> of Debian Linux, I believe. If I try to access a rawmidi port with amidi,
> Fedora 10 64-bit here, I get the following error:
> ALSA lib rawmidi_hw.c:233:(snd_rawmidi_hw_open) open /dev/snd/midiC5D0
> failed: Device or resource busy
> cannot open port "hw:5,0,2": Device or resource busy
> So, is there something different in the use of rawmidi ports with the
> PlanetCCRMA repo/Fedora and if so, can I get around it somehow?
> Since system exclusive has come up I am curious if anyone would know of
> other programs that will write and save system exclusive data that uses
> Jack
> instead of using a rawmidi port, also. I think the options are limited,
> no?
> Thank you,
> --Sean
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> PlanetCCRMA at ccrma.stanford.edu
> http://ccrma-mail.stanford.edu/mailman/listinfo/planetccrma

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