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Multiple PC audio and video sync

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Multiple PC audio and video sync

Postby rjbeardsley » Sat Oct 12, 2019 10:31 pm

Hi everyone!
I currently own two PCs, one for Audio and one for Video.
Is there a way to link them so that when I press play in a program like Davinci Resolve or Premiere Pro the Cubase timeline also starts. Basically having both programs share the same timeline.
I realise I can export the video and load that into Cubase but as I am also the creator of the video I would like the option to maybe jump from scoring to replacing a scene without the hassle of rendering and exporting another video.
I'm guessing it's going to involve timecode but I'm a little out of my depth here.
I'm currently running an RME RayDat and Ferrofish A32 on my audio Pc and Davinci resolve or Premiere Pro with GeForde 1070ti on my Video PC.
Any help much appreciated
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Re: Multiple PC audio and video sync

Postby CS70 » Sat Oct 12, 2019 11:13 pm

Pretty sure Cubase can react to MIDI controls (that's what control surfaces use), but the challenge is to have the NLE emit a MIDI command.. it's not like your typical video editing feature :)

I can think of ways to do that at OS, but I am not currently aware on any solution out of the box sufficiently simple for an end user.
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Re: Multiple PC audio and video sync

Postby rjbeardsley » Sun Oct 13, 2019 5:22 pm

Thanks for the response CS70.
I've been digging around a bit and come across the RME TCO HDSPe which markets itself as:

"The small module provides the HDSPe cards with a Word Clock input and offers a synchronization to LTC and video. Thanks to SteadyClock(TM), the TCO not only extracts absolute positions from LTC, but also a very clean low-jitter word clock from LTC and video. Thus a sample accurate timecode synchronization to audio or video sources is assured."

Unfortunately I can't find any info about real world usage or information on connecting it up. It sounds like it would do the job and as I already use the RME Raydat it shouldn't have any compatibility issues.
Would be great to hear anyone's experiences of this card.
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Re: Multiple PC audio and video sync

Postby CS70 » Sun Oct 13, 2019 5:40 pm

Not that specific, but I checked on Vegas, and it seems it can indeed receive timecode info via MIDI. Didn't have a clue! :D

http://vegaspro.helpmax.net/en/using-ve ... -timecode/

Not familiar with the RME unfortunately, but at least using MIDI seems a viable option - or at least worth trying.
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Re: Multiple PC audio and video sync

Postby Hugh Robjohns » Sun Oct 13, 2019 5:48 pm

With the audio on a separate computer to the video, you need three things to achieve synchronisation:

1. Something to synchronise the digital clocks to ensure the correct record/replay speed.

2. Something to ensure the correct location on the timeline.

3 Something to initiate start/stop automatically.

The TCO board you mention can accept an external video signal and use t to synchronise the digital audio word clock, so that deals with no.1.

If you get your video NLE to generate timecode when it plays, the TCO board can also accept that so your DAW can use it for locating to the right part of the timeline.... which solves no.2.

The DAW can probably be set up to start/stop when it sees moving/static timecode, which solves no.3.

...but there may be other ways of synching the two machines via a network or MIDI connection, depending n e facilities built into the video NLE and DAW. Check the manuals for both.
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Re: Multiple PC audio and video sync

Postby James Perrett » Sun Oct 13, 2019 8:46 pm

I was intrigued by this question so had a bit of a dig around with the free version of Resolve and couldn't find any way of either generating or reading timecode apart from having it burn the numbers onto the screen. It will read timecode from files but not from external devices as far as I can see. I don't have a copy of Premiere so I've no idea whether that can read or generate timecode from an external device. I guess both programs assume that the audio tools that they offer are sufficient for most users. Resolve can use external VST plug-ins but there's no mention of MIDI or VSTi.
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Re: Multiple PC audio and video sync

Postby James Perrett » Sun Oct 13, 2019 8:49 pm

CS70 wrote:Not that specific, but I checked on Vegas, and it seems it can indeed receive timecode info via MIDI. Didn't have a clue! :D

Vegas started life as a DAW and synchronising to MIDI is pretty standard in the DAW world.

Reaper has also started to incorporate video editing although I don't know if they will go as far into video as Vegas did.
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Re: Multiple PC audio and video sync

Postby rjbeardsley » Tue Oct 15, 2019 1:18 pm

Many thanks for all the responses.
I've done a little digging and discovered that Davinci can export LTC on an audio channel if you buy an expansion card called a Decklink. I'm hoping that in combination with the RME TCO card I can manage to get it all working!
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