[Ardour-Users] Midi replay problems

David Kastrup dak at gnu.org
Thu Jul 14 05:47:54 PDT 2011

Paul Davis <paul at linuxaudiosystems.com> writes:

> On Tue, Jul 12, 2011 at 11:30 AM, David Kastrup <dak at gnu.org> wrote:
>> Paul Davis <paul at linuxaudiosystems.com> writes:
>>> What ALSA MIDI/JACK MIDI "bridge" are you using, -X seq or -X raw or
>>> a2jmidid -e ?
>> I was using qjackctl, and using either raw or seq does not appear to
>> make a qualitative difference.
> neither are recommended. if i had more, a2jmidid's code would already
> be a part of JACK, but its not. -X seq and -X raw have *terrible*
> timing characteristics and -X seq will even lose data in one or both
> directions. a2jmidid, while currently more cumbersome to use, is far
> better in every way.

Well, it does not make an actual difference: the caterwauling stays,
regardless of whether Ardour is Time Master or not, uses Internal timing
or Jack, and whether Time transmit/receive is enabled on the Midi
expander (Solton MS40) or not.  Relevant recurring output appears to be

    MRB: Unable to reserve space in buffer, event skipped

And before that, possibly not related:

    ARDOUR says 10927616 JACK says 409600

David Kastrup

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