Mike Baas wrote:
>
>     I think the trouble I've got with MIDI events that are sometimes
>     some ms
>     to early or correct or some ms to late is caused by improper
>     handling of
>     MIDI event buffers, maybe by Jack, that would explain why the
>     timing is
>     better (probably okay to make music) for DSSIs, but maybe it has to do
>     with the use of different timers or something else.
>
>
> Ralf,
>
> Been reading your messages to the list.  Can you tell me what kind of
> midi interface you are using?
>
> mb


Hi Mike :)

the MIDI interface to external equipment at the moment is a no-name USB
device, the no-name brand is called "swissonic", it's from Thomann, the
biggest audio equipment dealer in Germany, but the jitter I reported was
only tested with internal, virtual instruments. Rosegarden MIDI out by
QJackCtl's ALSA tab (latest informations are, that this is only ALSA and
not Jack) connected to Hydrogen, resp. QSynth to avoid any human touch
function that comes with Hydrogen. The interface in this case is only
the software interface, an ALSA output client connected to an ALSA input
client.

The 64 Studio users and Jack-Devel Lists are very helpful with this
jitter trouble. At the moment it's up to me to test what will happen if
I'll use RTC as timer for Rosegarden. I will do this tonight. There are
also some other thoughts, but this seems to be the most promising one.
I'll report later what will happen if Rosegarden uses RTC instead of auto.

Cheers,
Ralf


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