Re: [LAD] making sense of Jack MIDI; or, is this an appropriate use for Jack?

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Subject: Re: [LAD] making sense of Jack MIDI; or, is this an appropriate use for Jack?

Date: Friday, February 15, 2013 - 8:17 pm

On Friday 15 February 2013 13:19:57 J. Liles wrote:

quoted text

> It means that you have to do that tricky 'sequencing' part, which consists
> of scheduling (MIDI) events and only placing them onto the JACK buffer at
> the appropriate instant. ALSA MIDI does this for you, as well as providing
> a nice API for generating the MIDI events. That's not the trickiest part
> though, the real mess begins when you want to deal with the JACK
> Transport/Timebase API to follow or generate tempo changes.

So there's no way to tell Jack to deliver the event at time t? You have to
wait for the right frame and then put on the buffer (presumably to appear on
the buffer for the receiver to use the next frame)?

Unless you mean something other than conversions to/from nanoseconds (or
whatever), the tempo stuff doesn't much concern me. That's a straight-forward
number-crunching algorithm. That kind of thing I can do.

--
7:8
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[LAD] making sense of Jack MIDI; or, is this an appropriate ..., M Donalies, (Fri Feb 15, 3:58 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., M Donalies, (Sun Feb 17, 3:30 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Harry van Haaren, (Sun Feb 17, 3:35 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Coccoli, (Sun Feb 17, 9:21 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Harry van Haaren, (Sun Feb 17, 9:41 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Coccoli, (Sun Feb 17, 10:04 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Harry van Haaren, (Sun Feb 17, 9:46 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Coccoli, (Sun Feb 17, 10:10 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Frank Kober, (Sat Feb 16, 8:58 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., M Donalies, (Sun Feb 17, 2:28 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Pedro Lopez-Cabanillas, (Fri Feb 15, 5:53 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., M Donalies, (Fri Feb 15, 7:51 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Fred Gleason, (Sat Feb 16, 3:43 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Pedro Lopez-Cabanillas, (Sat Feb 16, 12:16 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Pedro Lopez-Cabanillas, (Sat Feb 16, 5:22 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Sat Feb 16, 7:13 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Fons Adriaensen, (Sat Feb 16, 11:22 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Ralf Mardorf, (Sat Feb 16, 7:31 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Felix Homann, (Sat Feb 16, 9:54 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Ralf Mardorf, (Sat Feb 16, 10:23 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Felix Homann, (Sat Feb 16, 10:47 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Ralf Mardorf, (Sat Feb 16, 11:09 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Felix Homann, (Sun Feb 17, 7:41 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Ralf Mardorf, (Sat Feb 16, 7:35 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Sat Feb 16, 2:18 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Bill Gribble, (Sat Feb 16, 3:49 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Sat Feb 16, 3:59 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., drew Roberts, (Sat Feb 16, 4:27 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Pedro Lopez-Cabanillas, (Sat Feb 16, 9:39 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Fri Feb 15, 8:22 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Albert Graef, (Sat Feb 16, 7:42 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., M Donalies, (Fri Feb 15, 11:13 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Fred Gleason, (Sat Feb 16, 3:46 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Pedro Lopez-Cabanillas, (Sat Feb 16, 10:03 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Frank Kober, (Sat Feb 16, 10:38 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Pedro Lopez-Cabanillas, (Sat Feb 16, 11:03 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Harry van Haaren, (Sat Feb 16, 1:04 am)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Fri Feb 15, 11:24 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., J. Liles, (Fri Feb 15, 9:46 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Lieven Moors, (Sat Feb 16, 11:55 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., David Adler, (Fri Feb 15, 11:49 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., M Donalies, (Fri Feb 15, 11:47 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Fri Feb 15, 9:53 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Fri Feb 15, 7:47 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Fri Feb 15, 4:12 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., M Donalies, (Fri Feb 15, 6:06 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Pedro Lopez-Cabanillas, (Fri Feb 15, 7:15 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., Paul Davis, (Fri Feb 15, 7:48 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., J. Liles, (Fri Feb 15, 6:20 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., M Donalies, (Fri Feb 15, 8:17 pm)

Re: [LAD] making sense of Jack MIDI; or, is this an appropri..., James Morris, (Sat Feb 16, 12:45 am)