Blackmagic Forum

Hi Atem users,
I'm setting up a 2 cam+2 generators+4 mic+2 stereo Atem studio to do webcasts. I'm looking for a rack mount unit that would help me delay the stereo feed that goes from the audio board to the ATEM to match the latency of my cameras (BMPCC).

A stereo delay would do for now. I don't need a per-input control. Thanks!

I use a computer audio interface with a variable delay plug-in insert. I use the m-audio lightbridge with protools 9 with a laptop with firewire. This also allows me to record 32 audio channels for live and or post audio mixing.
connect the S/PDIF out to the AES/EBU input on the ATEM (48kz/24bit). On the master fader set the output to S/PDIF. Insert a software delay plug-in on the master fader and experiment with the timing. record a sample with media express. Import the recorded video with a video editor to better see what changes are needed by slowing down the video.
Unchecked the mirror spdif in the hardware control panel so I don't hear the the audio twice on delay with the headphone.
I monitor the video / audio with media express, but it has a lot of delay. I have also set up anther post fader mix by creating a send to a different line out/headphone to monitor with out latency to focus on the mix.

how about sending your mix from your board to a camera's mic input and solo that channel in the atem control panel?

are a number of posts on this already. Behringer has a device, can't remember the model number

mathieu : u can use this one : http://www.behringer.com/EN/Products/DEQ2496.aspx .. its have compressor/limiter too ..



mattv : audio from camera is not delayed ..

THanks Pytkin, this is exactly what I was looking for. I would have love a half-rack but it will do!

The Teranex 2D of BlackMagic has an audio delay function (since update of dec. 19) is a 19" sized model and gives you even a huge amount of compression facilities for broadcast recording or projection. Win-win.
I love it and use it with all my productions.

how about this thing for audio delay...

http://www.avtoolbox.com/ap411.shtml

and to convert its output to AES for the TVS…you will need a RCA to BNC adapter

http://www.gefen.com/kvm/gtv-aaud-2-dig ... od_id=5278

cheap, but they work

A second on the Eurocurve - the menus can be daunting but it does a lot for the money.

Gregs solution schould work

The Geffen A to D audio unit is converting unbalanced audio to SPDIF. Not AES.

ATEM also works with SPDIF (My ATEM does). Some people here can confirm...

im sending spdif from RME Fireface 400 to ATEM TVS AES input , and it works without problem ..