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ATEM Television studio?
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Well then, don’t say the TVS is adding 4 frames of delay, it is probably only responsible for 1 frame, it’s all the other stuff the signal goes through before entering the TVS. 🙂
Aleksander Steffensen
Steffensen Multimedia -
There is going to be delay in any digital system. It doesn’t help to place blame on specific links in the chain. Just plan on doing audio delay to restore sync. It is not expensive to do.
IMHO, genlock is an artifact from the analog TV era. Probably still valuable in a large studio complex, but of only academic interest to small-scale users which the ATEM products appeal to (because of their price structure).
It would cost you at least 10x more to use gen-lock cameras than to simply delay the audio to restore sync. It isn’t even a horse race. That kind of money would be MUCH better spent on other things which would actually add production value to the final product. (Like instant replay, etc)
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“IMHO, genlock is an artifact from the analog TV era.”
Not at all!
It is CRUCIAL for applications requiring fast transmission, such as in a multi camera live situation with screens where the audience can see the action “live” as well as on screens, for example: live sports or conferences, houses of worship etc.
Just because YOUR application doesn’t require it, doesn’t mean it is obsolete.
My next camera purchases are very specific and MUST include genlock capability.
Ymmv.
Big Dog – Technical Director – Switcher
Road Dog Media – Vancouver, BC Canada
roaddogmedia@gmail.com -
AS mentioned in a parallel post, we are currently ground testing the TVS. We are using the Behringer DEQ2496 to manage all of the audio requirements as it has a whole bunch of tricks up its sleeve other than A/D conversion including delay (the big tick), limiter, gate etc and seems very good value particularly against other A/D converters priced way higher without all the extras.
From my understanding if you’re using “prosumer” type cameras with only HDMI out (only!), then get HDMI to SDI converters and that should give you plenty of distance on the digi BNC cables. 10-20m of HDMI would be about your maximum I would’ve thought but happy to be corrected / educated.
Cheers
Rob -
Rob, you are correct.
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[Rob Nachum] “We are using the Behringer DEQ2496 to manage all of the audio requirements as it has a whole bunch of tricks up its sleeve other than A/D conversion including delay (the big tick), limiter, gate etc and seems very good value particularly against other A/D converters priced way higher without all the extras.”
Ok a couple months late but this is still relevant info to me. Are you saying that the DEQ2496 not only does the Analogue to Digital Conversion for input to the TVS but also has the delay function? I was two seconds away from purchasing the Shark DSP110 along with the SRC 2496.
Please say that it is so!!!!
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Hi Michael
It is so. The DEQ has a built it delay that runs to +-300ms which seems to cope in most situations. We did have one occasions where we needed more delay overhead. However, in that example, the primary desk was also digital and was able to pass us more delay which we then “reversed”. Worked perfectly.
Our normal setup us ~3 cameras, the media player, varying cable length back to the ATEM and even mixing HD-SDI and HDMI cameras (and to go the extra step there mixed in the ATEM as HD-SDI and HDMI or using the BMD HD-SDI converter.
I also looked at purchasing the separate items. I didn’t get as far as chaecking how much delay the Shark ran to. But in the end, there was more benefit (and vealue) in the range of tools in the DEQ combined with the delay than getting the separate bits as for us there is little additional benefit in having a discreet delay management tool. IN fact we are still finding hidden benefits in the DEQ (my audio guys are pleasantly surprised as I’m the ludite in the field…)
Hope this helps.
Cheers
Rob -
Rob,
I noticed the the DEQ2496 does not have an RCA AES output (Just an Optical/XLR). Did you just use an XLR to BNC cable to connect the unit the the TV Studio? I’m just wondering because other posts said that the XLR AES Output on the SRC2496 was a different frequency than what the TV Studio takes in and they needed a converter. Just want to make sure I get everything I need in one pass. Thanks!
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