[LAU] Routing MIDI Channels between ALSA and JACK

[Paul Davis]

On Thu, Mar 10, 2016 at 7:42 AM, Ffanci Silvain <silvain at freeshell.de>
wrote:

> Nacho Otal, Mar 10 2016:
> ...
>
>> 2.- Is there a possibility to route directly midi commands to JACK
>> avoiding ALSA?
>>
> Not avoiding ALSA, since ALSA drives the hardware and JACK sits ontop of
> ahrdware drivers. BUT...
>

Not strictly true. Applications which use JACK MIDI can exchange MIDI data
directly, without ALSA. But yes, if you want to use MIDI hardware, ALSA
will always be involved.


> You can start JACK with the -xseq or -xraw commandline options and it will
> give you your hardware MIDI ports. Tried and tested.
>
> Or you use a2j_midibridge or a similar tool, and if necessary its reverse,
> which will bridge JACK MIDI


a2jmidid -e

Note that JACK1 has this functionality built in, and using -X seq will
activate it.
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