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SDI multichannel Premiere2 capture problem
hi everybody!
maybe i`m just to stupid, but:
when i capture embedded SDI 4 channel audio from a XDCamHD deck,to a DecklinkHD extreme, the resulting clip shows up as stereo and when i move the clip to the timeline it sounds absolutely distorted.
playing out to the 4 channels of the deck from premiere works fine, i just don`t know how to get those 4 cannels into premiere properly.
the preferences dialog “audio hardware – ASIO settings” does nothing at all – is this normal?
breakout to momo clips gives me 2 mono files that sound distorted.
apart from this problem the system seems to run fine.
video is 1080i 50, Mjpeg or uncompressed 8 bit, does not make a difference to the problem.my specs:
MB intel 975 XBX, onboard sound disabled
HD extreme
Promise 8350 PCIe SATA controller, 6 x Seagate 320 sata striped for raid5, speedtest 300 read 200 write
ATI 1900 graphics
2 Gig Ram
Core2duo 6600 @ 2,8 Ghzeverything seems to run perfectly stable, so my only real trouble is the 4 channel SDI audio thing.
so, what am i doing wrong?
thanks in advance for your answers,
mike
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7 Replies
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Try to change this: Project settings/Capture/Capture format: Decklink Capture-Properties/Audio channels to capture – 5.1 (6 chanels). Now you will capture avi with 5.1 surround channels, but with only 4 channels containing sound recorded from your machine. If you want to separate them you most somehow export them from your timline (or clip) to a single chanels or 2 stereo pairs.
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thats what i did, but did not work.
the captured clip shows up as stereo, when i breakout to mono i have 2 distorted mono clips instead of 6 clips.hmmmm….?????
anyone using the 5.1 capture feature sucessfull?greetings,
michael
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Why do you have your on board sound disabled? I may stand corrected here, but I think 5.1 is supported by decklink, but is partially a function of a 5.1 compatible soundcard.
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I have the same problem with a HD Extreme. I select 5.1 capture, but only get a stereo capture. And yes I have four discrete audio channles coming in off DVCPRO50 SDI.
Peter Corbett
Powerhouse Productions
Australia
http://www.php.com.au -
Hi!
good to see that i am not the only only one who has this problem.
i tried the multichanel capture with a sony pdw f70 XDCamHD deck, same result as you.
so, perhaps it is not a HD problem since you are working in SD.
however, i can send multichannel audio to the deck via HDSDI without problems.if you or anyone finds a solution, please let me know.
next i will try to contact the decklink support, maybe they know what we are doing wrong (or not)greetings, michael
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I tried this with my HDCAM JH3 in 5.1 (6 channels) and it work ok (5.8 drivers). If you open the clip in a stereo project it will only play tracks 1+2. But if you expand the track out you should see 6 channels. If you open a new 5.1 sequence it will play all 6 channels.
If you open in Audition it will show you the 6 discrete tracks and you can save them as individual tracks as needed.
But what I did notice as a BUG is that if you try AUDIO ONLY 5.1 capture it appears it is capturing but it doen’t actually save it; but as I said earlier it works OK as video+audio. Incidently it captures and saves a 2 channel AUDIO ONLY just fine.Baz
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The ASIO protocol that Premiere and BM use to map audio channels is a function of your soundboards internal WDM miniport driver support(beleive it or not). In order for both (PPro and BM) to Fully implement Multi Channel Recording, Playback, Duplex etc. your motherboard internal AC97 device must fully support this protocol. Many do not. Buy an Audigy or some other card with robust support. Followed by Latest driver update followed by reinstall of BM, drivers and possibly Premiere then BM again might solve this. Whats not to understand about this. Most motherboard AC97 audio is afterthought glitz (even though realtek goes to great lengths to shake out driver issues). Buy something that fully has this wrapped. I know you think BM bypasses all of this, but they don’t. They coexist, and are using the same ASIO protocol everyone else designs by. Also if you do a soundcard update disable onboard device in BIOS and MB jumpers if possible. This can be another issue, as these cards can take more system resources than your motherboard can support given the additional requirements of Raid, LAN, and Capture card choices as well.
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