Re: Properly sync'ing an external device

From: Alexandre Ratchov <>
Date: Thu Dec 13 2012 - 13:32:44 CET
On Thu, Dec 13, 2012 at 01:11:17PM +0100, Julien Claassen wrote:
> Hello everyone!
>   I haven't really had success in sync'ing my synth's arpeggiator to
> Midish. The manual of the device, says, taht it's possible to sync
> it to an external clock and keep the arpeggiator even sync'ed to the
> position in the song, when moving in the recording.
>   At the moment I'm sending the clock (dclktx). Should I also
> transmit anything else?

yes, this should work; you probably need to setup the synth to use
"external MIDI clock" or whatever it is called.

>   when I'm picking up an external clock signal, should I in addition
> receive anything else from that device?

non need to receive anything.

> I'm asking, because the
> final recording setup will get the clock from a JACK application,
> which is sync'ed to JACK internal clock, thus keeping it to JACK's
> rather more exact audio clock.

You'll have to setup midish to receive MIDI Time Clock (MTC), this
way it stays in sync with audio programs (with "dmtcrx <devnum>"),
and then, possibly make jack use MIDI Machine Control (MMC) from
midish to start/stop/relocate according to commands on the midish

BTW, do you finally have a receipe to make midish work reliably
with jack?

-- Alexandre
Received on Thu, 13 Dec 2012 13:32:44 +0100

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