accurate audio/video sync with 2 computers: what to use?

Discussion of music production, audio, equipment and any related topics, either with or without Ableton Live
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SubQ
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accurate audio/video sync with 2 computers: what to use?

Post by SubQ » Tue Jul 02, 2013 7:03 pm

Hi guys, long time.
I'm working on this live act in wich we have audio stems in Live's session view (master) and the artist's videoclips running on another "visuals" system (slave) wich should receive as accurate clock from Ableton as possible. The reason is that the performer is singing on top of pre-recorded stems and videoclips, so we should have a perfect lip sync, and each scene would trigger the proper video.

I've tried to do some search, but could not find a suitable and clear answer.

Can you guys shed a light on this? I.e. what type of sync to use (MTC, Midi Clock, Audio Timecode, OSC, etc) and the right solid setup, avoiding latency and instability...

all the best,
Rodrigo
http://soundcloud.com/coelho
Dave Smith Prophet 08 SE, Genelecs, RME Multiface, Faderfoxes, Doepfer Drehbank, Padkontrol, DIY Footcontroller, Electro Harmonix Pedals.

Da hand
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Re: accurate audio/video sync with 2 computers: what to use?

Post by Da hand » Wed Jul 03, 2013 3:56 am

What is your "visual system"? The easiest way is to look at what sync options are available in Live, then which ones are available in your "visual system" and sync the two together. MIDI is probably the easiest to use with LIVE if available on your "visual system".

Tysonviolin
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Re: accurate audio/video sync with 2 computers: what to use?

Post by Tysonviolin » Wed Jul 03, 2013 4:26 am

Network sync is the best. Send up network midi I/o in audio midi utility on your Mac. Then, in Live's midi preferences send and receive sync as necessary

chapelier fou
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Re: accurate audio/video sync with 2 computers: what to use?

Post by chapelier fou » Wed Jul 03, 2013 7:13 am

who said they've got macs ?
MacBook Pro 13" Retina i7 2.8 GHz OS 10.13, L10.0.1, M4L.
iMac 27" Retina i5 3,2 GHz OS 10.11.3 L10.0.1 M4L.

broc
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Re: accurate audio/video sync with 2 computers: what to use?

Post by broc » Wed Jul 03, 2013 10:00 am

In general MTC is used for video sync but unfortunately Live doesn't support MTC output.

TYLRbass
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Re: accurate audio/video sync with 2 computers: what to use?

Post by TYLRbass » Wed Jul 03, 2013 2:24 pm

Here is what I do, can't say it's the most accurate but it works pretty well.

MIDI clock out of Live into Resolume, either running on the same computer and sent over IAC or running on two computers sent over network.

Then to sync the clips and forward parameters to Resolume I've been using these M4L devices
http://www.resolume.com/blog/8717
and
http://resolume.com/blog/6747/trigger-r ... x-for-live

You might also want to keep your eye on http://showsync.info/ and see what they have to offer
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