Andreas Wojtaschek
Forum Replies Created
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Andreas Wojtaschek
April 5, 2013 at 10:44 am in reply to: Please evaluate this equipment plan — I seek your wisdom…Hi Greg,
to make a long story short: The setup with the ATEM and your cameras through converters will work.
Regarding the sync issue:
You should use sync in your case because you already have the technical option if you have CCUs with your cameras. If you sync all gear to a sync generator (BMD offers one), you will get almost no latency at all (just 1 line). With this kind of setup you don’t need to worry about audio/video sync problems. Allthough I think the A/D Converters produce a delay of 1 frame.If you are on budget you could use a ATEM Television Studio rather than a 1ME. The only downside would be that the TVS has no DVE, no aux outputs and not the possibility to play short media clips.
If you have any additional questions pleas let me know it.
Cheers
Andreas
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Entertainment Producer IHK
mindandvision -
Make sure your camcorder is set to 48kHz and your AES source as well. The TVS accepts only 48kHz as sampling frequency.
Some older camcorders have the option to choose 32kHz as audio sampling frequency. That won’t work with the TVS.
Cheers
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Entertainment Producer IHK
mindandvision -
Andreas Wojtaschek
January 20, 2013 at 10:15 am in reply to: ATEM TV studio low quality computer captureThe TVS captures always a compressed signal over USB2. It is always a H264 compression between 1,5 and 20MBit. It cannot be as good as the original signal due to the compression.
The second thing is, that there is still a very big issue with the H264 encoder that the TVS contains. It cannot record interlaced signals (f.e. 1080i) and does some very bad deinterlacing. Actually it just throws away every second line. You get half the resolution of your original signal. BMD knows about this issue but doesn’t do anything to solve this.
This is true for the TVS and for the H264 recorder, which renders these recoding options absolutely useless in my opinion. You could try to use the MXLight software to record from the TVS. It offers some options that Media Express doesn’t. But you will never get a broadcast quality recording out of your TVS, unless you use an external recorder that is connected via HD-SDI or HDMI (like the Hyperdeck).
Cheers
Andreas
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Entertainment Producer IHK
mindandvision -
Easy to find on the BMD website:
Goto support, then chose “Hyperdeck” and “Studio”. Thats it.
But here is the direct link:
https://software.blackmagicdesign.com/HyperDeck/Blackmagic_HyperDeck_Windows_3.6.zip
Cheers
Andreas
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Entertainment Producer IHK
mindandvision -
Make sure you have the latest firmware on your Hyperdeck:
It should be Version 3.6.
Only this version supports ExFat.
Cheers
Andreas
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Entertainment Producer IHK
mindandvision -
I think the card should work with the recen Decklink drivers. But have in mind that the old PCI Decklink cards can’t work with more than 3GB of RAM. If you want to be on the secure side use Win7/32Bit.
If you use Win7/64Bit and more than 3GB of ram all you get is an empty black screen on your Decklink card.
Cheers
Andreas
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Entertainment Producer IHK
mindandvision -
Daniel,
just take the master out of you mixer, feed this into a delay unit (f.e. the DEQ2496 from Berhinger), delay the audio 1 frame (about 33ms if you are working with 30fps) and feed that signal into the ATEM switcher. You will get perfect sync. The lenght of the cables don’t matter at all regarding the delay. If you had a cable that would reach from earth to the moon you would only get 1,3 seconds of delay because the signal travels with almost lightspeed through the cable. I bet you have shorter cables 😉
BTW. don’t buy the 1ME but rather the Television studio if you can live with 6 video inputs. Because there is a H264 recorder inside the Television studio, that would better fit your needs. Because with that you could record a H264 stream straight to your computer harddisk. After your church service is done you have a H264 file on your hard disk which is ready to be uploaded to Youtube. You don’t need to transcode or edit it if you choose the right bitrate.
Cheers
Andreas
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Entertainment Producer IHK
mindandvision -
Again – big problems with the BMD website. I can’t even get to the support page. And now even the startpage isn’t available.
These problems persist since several weeks now – I can’t understand why BMD can’t solve these problems. Really Annoying!
BMD – do your homework!!
Regards
Andreas
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Entertainment Producer IHK
mindandvision -
No sorry – you misunderstood me.
The delay is always 1 frame from input to output – no matter how much cameras you connect as long as the cameras are unsynced. If you sync all cameras to the TVS then you will have just 1 line of delay.
What you say about the audio is unfortunately not true. After the video signal is processed by the TVS and gets out of the SDI output you will experience a difference of 1 frame between audio and video. The audio will be 1 frame ahead of the video. That is why you should use a delay that delays the audio by one frame (in PAL 40ms in NTSC 33,3ms) before it gets into the TVS.
But even your camera can have a own delay from shooting the picture until the signal leaves the HDMI or SDI output. For example: Our HPX3600 has 2 frames of delay until the signal leaves the HD-SDI output. You would have to add that amount to the 1 frame of the TVS and end up at 3 frames of delay.
Cheers
Andreas
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Entertainment Producer IHK
mindandvision -
The delay of the TVS is exactly 1 frame if you use unsynced cameras. If you genock your cameras to the TVS it will be a delay of 1 line. (Actually you won’t see any delay then)
Have in mind that every piece of gear that you use (converters, monitors and even your camera) can increase the delay by several frames. But the delay of the TVS is always just 1 frame from in to out.
In PAL land you should delay the audio by 40ms (because that equals 1 frame).
Cheers
Andreas
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Entertainment Producer IHK
mindandvision