Doug Fish
Forum Replies Created
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Not much in the way of helpful information from Blackmagic in response to my e-mail–basically said don’t use HDMI over 15 feet, and use their converters for longer distances.
As Kip said, the results just don’t seem to make sense. I can daisy chain a 15′ 30 ga. mini-HDMI to HDMI cable with a 6′ cable (passive extender in between) and get a signal. But a 12′ 24 ga. cable with a mini-HDMI adapter gives no signal.
Kip, I just ordered a 30′ Atlona flat cable, I’ll see what happens.
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Jarod, I decided to take your advice and try the Auvio In-Line Extender. Ran to Radio Shack and grabbed it just minutes before closing.
Unfortunately, still no success. Both 30′ cables, the monoprice 24 ga. and the Belden Series 1, failed to deliver a signal even when connected to the Auvio In-Line Extender, both with my camcorder and my laptop. Again, the unit works fine with my 6′, 10′ and 15′ mini-HDMI to HDMI cables, but nothing seems to work past that.
I have heard that some people are getting a signal at longer distances from Atlona cables (25′ and 50′), Xtreme cables (50 ft. with extender) and even Link Depot Cables (25′), which is why I keep trying to make this work. I’ve got good quality cables, but can’t get a signal even with an extender. What gives?
I can’t keep throwing my money and time at this. If there’s some magic ingredient in an HDMI cable that the ATEM TVS is looking for, Blackmagic needs to tell us what it is.
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Jarod, I have attempted to use an HDMI extender from monoprice (picked it up for insurance) with the same result–no picture. Are you using the ATEM 1/ME, or the TVS?
Seems Blackmagic set the bar for the HDMI handshake awful high with the ATEM TVS to avoid issues.
I wish there was some way to see what was happening when the ATEM is negotiating a connection, to tell me what it doesn’t like about my cable.
I don’t want to convert to SDI or perform any other conversion for two reasons: (1) I don’t want to introduce delay, and (2) This camera will be wall-mounted, and adding a converter box will clutter up the install.
If I’m sticking with HDMI, then, the only option I have left is to send the Belden cable back and try the Atlona cable at 30′.
It just amazes me that I have 3 rinky-dink 30 ga. mini-HDMI cables, 6 ft., 10 ft., and 15 ft., and they all latch on and deliver a perfect signal. Yet, I take these big snake HDMI cables that are 30 ft. long and 24 ga. and hook them up, but get nothing (to the ATEM TVS at least–other inputs, like on my HDTV, are fine with them).
Correct me if I’m wrong, but we’re only delivering a 1080i signal here–doable for any standard-speed HDMI cable–so I can only conclude that the ATEM TVS is checking for specs in the cable during the handshake process that exceed the requirements of the product itself. Or can any of our resident Blackmagic guys tell us what is making the ATEM TVS fail to receive a signal at longer distances than 15 feet (for me, at least)? I’ve already purchased 2 cables at 30′ that do not work, and I’d like to make my next purchase with more knowledge and less trial and error (or error and error, as I’ve experienced thus far).
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Frustrated again. Received and tested the Belden Series 1 30′ cable, and the ATEM TVS won’t take a signal from it at all. Gives a fine picture to my monitor, though.
Wrote an e-mail to Blackmagic support, I guess I’ll see what they say.
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In my testing, I *might* hear the audio arriving slightly before the video, but it would be imperceptible unless you are carefully looking for it. However, I can’t guarantee anything to you, because it’s always a matter of matching up the delays in the audio and the video. Depending on your setup, you may have more or less video delay than I have. My suggestion is to get the SRC2496 (or whatever you end up purchasing) and see if there’s a problem. I *think* it will eliminate the delay from your existing setup, but I don’t know how exacting your demands are.
The ATEM TVS syncs your video, but has no audio control options–whatever you are sending in as audio at that moment is what it mates with the video. Thus, any audio delay necessary will require an outside solution. Genlocking is really beyond me, I’m just a novice.
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Yes. The Behringer Ultramatch SRC2496, which costs $164. You’ll need the cabling to feed XLR into the SRC2496, and a RCA to BNC cable to feed the RCA digital audio out to the BNC input of the ATEM TVS in the AES/EBU format.
Haven’t done extensive testing, but working well thus far.
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Markertek.
The ATEM TVS works well in my limited testing, including H.264 recording. Gripes: It hates lengthy HDMI cords (or at least cheap ones), doesn’t have an on/off switch, requires AES/EBU audio via its BNC connection, and still doesn’t have standard def implemented. But it’s an amazing product for the price.
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The monoprice 30′ 24 ga. HDMI cable I planned to use with the ATEM TVS would not pass the signal from the camera. Also tested a cheap 20′ I had on hand that failed. I have a 6′ and 10′ mini-HDMI to HDMI cable that have worked flawlessly.
I plan to purchase and test a 30′ Belden Series 1 from Blue Jeans Cable sometime over the coming week.
I’m surmising that the TVS is so finicky because it has to pull a strong signal in order to accurately sync the video inputs.
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Scott, got mine Monday, and have been testing it out a little.
1) I’m using a Core i7 2600K with 8 GB of memory, but I am sure that is overkill and would operate on a much lesser computer. Dual-core and 4 GB should be plenty.
2) Not something I have to face, but there are plenty of options. This one gets great reviews for $95:
https://www.amazon.com/ViewHD-Component-Converter-Support-Surround/dp/B004F9XVBC/ref=sr_1_14?ie=UTF8&qid=1318128003&sr=8-143) Have only used png files, but have had no problems with them whatsoever–after getting them in the ATEM TVS. Your mileage may vary.
4) Used a SRC2496 and an RCA to BNC cable to feed digital audio out to the ATEM TVS in the required AES/EBU format. Will be using the same computer I use to control for feeding stills/video by using the 2nd monitor out on my video card.
Had concerns about A/V sync, but those have so far been unfounded. H.264 recordings have been good as long as I have sufficient lighting, but in Media Express the preview and recorded video are noticably darker than what my ATEM TVS preview display shows.
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After finally receiving my ATEM Television Studio, I can happily report that the above cable from monoprice works fine to deliver the sound from the RCA digital out on the SRC2496 to the BNC in on the ATEM Television Studio in the AES/EBU format.