[LAD] Trying to understand Jack Midi, (Arpage, Dino)

Paul Davis paul at linuxaudiosystems.com
Mon Feb 15 16:20:32 UTC 2010

On Mon, Feb 15, 2010 at 11:18 AM, james morris <james at jwm-art.net> wrote:
> 1) Is there any way to improve Jack Midi timing when the audio driver has
> a high latency?

the timing has  LOT to do with the ALSA MIDI "backend". If you use
a2jmidid, you will get dramatically better timing. i have already done
quite a lot of the work to make it possible to use a2jmidid "within"
JACK itself, but i'm not done yet. bet to get the git version of
2jmidid, since it has some important fixes.

> 2) What is the reason the Alsa driver/Jack would not start when the
> settings give a big 170ms+ latency?

probably your audio device does not support such a large buffer


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