Re: [LAU] what's up with midi clock

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: Atte André Jensen <atte.jensen@...>
Cc: linux audio users <linux-audio-user@...>
Date: Saturday, May 30, 2009 - 7:46 pm

Atte André Jensen wrote:

Does sooperlooper respond to Song Position Pointer (0xF2) and/or MIDI Continue
(0xFB)? You may be able to sync time using these instead of Song Start (0xFA).
Song Position Pointer sends a 14-bit song position, followed by a MIDI
Continue which means ("start playing at that spot on the next clock tick"). The
14-bit song position is in "MIDI beats" since the beginning of the song. 6 MIDI
Clocks == 1 MIDI beat.

Also, I noticed that sooperlooper is determining tempo by some manner of rolling
average calculation. (Maybe it doesn't, but that's the way it *acts*.) If so,
that makes it even harder to get sooperlooper to sync to a downbeat.

> As just outlines in another post, the problem is a bit more complex, as

Right now, the laptop 2 has a chuck script that listens for OSC messages and
feeds sooperlooper a MIDI clock. Instead, you could write a simple C program
that listens for OSC messages and is the JACK transport master. Writing a
transport master is not very difficult.

Looks like Esben Stein did exactly this recently:

http://www.nabble.com/JACK-Transport-td23135202.html

Also, perhaps netjack already has this ability.

HTH,
Gabriel

_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user

Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
[LAU] what's up with midi clock, Atte André Jensen, (Fri May 29, 5:50 pm)
Re: [LAU] what's up with midi clock, Gabriel M. Beddingfield, (Fri May 29, 6:31 pm)
Re: [LAU] what's up with midi clock, Atte André Jensen, (Fri May 29, 7:33 pm)
Re: [LAU] what's up with midi clock, Brent Busby, (Wed Jun 10, 4:40 pm)
Re: [LAU] what's up with midi clock, Paul Davis, (Wed Jun 10, 5:57 pm)
Re: [LAU] what's up with midi clock, Brent Busby, (Wed Jun 10, 8:32 pm)
Re: [LAU] what's up with midi clock, Atte Andre Jensen, (Thu Jun 11, 7:27 am)
Re: [LAU] what's up with midi clock, Marc-Olivier Barre, (Thu Jun 11, 9:25 am)
Re: [LAU] what's up with midi clock, Atte Andre Jensen, (Thu Jun 11, 10:09 am)
Re: [LAU] what's up with midi clock, Paul Davis, (Thu Jun 11, 12:06 pm)
Re: [LAU] what's up with midi clock, Jesse Chappell, (Sat Jun 13, 12:13 pm)
Re: [LAU] what's up with midi clock, Gabriel M. Beddingfield, (Sat May 30, 1:03 pm)
Re: [LAU] what's up with midi clock, Atte André Jensen, (Sat May 30, 5:00 pm)
Re: [LAU] what's up with midi clock, Gabriel M. Beddingfield, (Sat May 30, 7:46 pm)
Re: [LAU] what's up with midi clock, Jesse Chappell, (Sun May 31, 1:09 am)
Re: [LAU] what's up with midi clock, Atte André Jensen, (Sat May 30, 11:27 pm)
Re: [LAU] what's up with midi clock, , (Sun May 31, 4:58 am)
Re: [LAU] what's up with midi clock, Gabriel M. Beddingfield, (Sun May 31, 11:59 am)
Re: [LAU] what's up with midi clock, alex stone, (Sun May 31, 6:11 am)
Re: [LAU] what's up with midi clock, Paul Coccoli, (Sat May 30, 1:03 pm)
Re: [LAU] what's up with midi clock, Atte André Jensen, (Sat May 30, 4:57 pm)