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ATEM 1 & HyperDeck Studio –> Audio Delay
Hello,
I’m hoping someone can help me solve an audio/video sync issue. In a nutshell, after we go through our ATEM 1 and record onto a HyperDeck Studio, the video in the file we end up with is 6 frames too fast. So we either need to slow down the video by 6 frames or speed up the audio by 6 frames.
What should I buy to fix this?
Here is our current set-up:
1. We feed video from a Panasonic AF100 via HD-SDI to the ATEM 1
2. For the audio, our talent uses a Sennheiser EW 10 wireless mic. The mic receiver is plugged into an analog Behringer board and from there, we feed the ATEM 1 via its analog XLR inputs.
3. The output from the ATEM 1 is then piped over to a HyperDeck Studio via HDMI for recording.Thanks,
Carlos
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14 Replies
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People have had good luck with this:
https://www.bhphotovideo.com/c/product/280608-REG/Behringer_DEQ2496_DEQ2496_Digital_EQ.html
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The strange thing is that the audio should be faster than your video. The Atem delays your video about 1 frame if you use unsynced cameras that is about 40ms in PAL land. Easy to compensate using a simple digital delay. But if your video runs ahead this is strange and difficult. In this situation the mentioned Behringer device isn’t useful for you.
What firmware do you run on your Hyperdeck? There was a firware where the Hyperdeck had issues regarding a/v sync.
Regards
Andreas
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Entertainment Producer IHK
mindandvision -
I don’t believe the linked Behringer does Line Delay.
The Behringer SHARK FBQ100 does.
I believe the linked device is the solution for digital audio for the ATEM TV Studio.
Big Dog – Technical Director – Switcher
Road Dog Media – Vancouver, BC Canada
roaddogmedia@gmail.com -
As I don’t own one, I can’t confirm, but in the Overview, it specifically states:
“Flexible compressor/expander function with peak limiter per stereo channel as well as a stereo imager and stereo delay”
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Thanks for the correction, Mike.
For some reason when I was looking for delays for my ATEM, I went looking at Behringer and only the FBQ100 worked for me.
Perhaps it was because the the DEQ2496 “only” has 300ms of delay that I was afraid it wan’t flexible enough for me (~20 frames of delay at 60P, ~10 frames at 30P/60i).
In hindsight, my delays are running at 34ms right now so I would have been fine.
Thanks for the catch and correction. Wish I would have bought that instead now. 1RU instead of 1.5RU for the Sharks…
Big Dog – Technical Director – Switcher
Road Dog Media – Vancouver, BC Canada
roaddogmedia@gmail.com -
We have had good luck with the Behringer Sharks, both the old and new models. Only downside is they run very hot!
There is a video up on our site showing how they work – https://www.studiotech.tv/category/studiotech-2/
Look for episode 21.
Mark
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Hey guys,
I really don’t understand you: Why would you want to delay the audio if the VIDEO IS TOO FAST?
That is what he’s saying. Maybe I don’t underand it right – but you will have no luck with an audio delay if you have to delay your video.
Regards
Andreas
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Entertainment Producer IHK
mindandvision -
Given the path described, it is virtually IMPOSSIBLE that the video is too fast. Likely that the audio is too fast and needs to be delayed.
There is nothing in that path that would cause the audio to be delayed at all, whereas I would expect 2 to 3 frames delay of video.
Unless I’m missing something, but that setup isn’t much different than mine.
One cannot “speed up” audio obviously.
To have audio SLOW 6 frames, you are talking about a delay between the wireless, audio mixer and ATEM of approximately:
100ms if 60P, 200ms if 30P/60i.
I don’t see how that could possibly happen.
And that is BEFORE taking into consideration the delay caused by using the frame sync’s on the ATEM instead of genlocked sources.
Big Dog – Technical Director – Switcher
Road Dog Media – Vancouver, BC Canada
roaddogmedia@gmail.com -
Shaun,
it is not impossible as I described earlier. There were some issues with the Hyperdeck Studio firmware, where there were massive a/v sync issues. I’ve had exactly the same problem: When I watched the recording that I made with the Hyperdeck STudio in DNxHD mode the audio was too slow and the video ran ahead.
That is why I asked if he’s using the latest firmware for the Hyperdeck. This solved the issue for me.
Regards
Andreas
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Entertainment Producer IHK
mindandvision -
Quite fair, Andreas. Apparently I missed your previous comment to that effect.
Unfortunately, one of my character flaws is a belief in Occam’s Razor
https://en.wikipedia.org/wiki/Occam‘s_razor
and therefore it was EASIER for me to believe that the OP had in error listed the audio as running slow, instead of the far more common issue of the video being delayed.
I apologize for my “arrogance” in that regard and hope it is something as simple as requiring the newest firmware.
Big Dog – Technical Director – Switcher
Road Dog Media – Vancouver, BC Canada
roaddogmedia@gmail.com
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