7Q SDI output: audio lag?

M

Minh

Active member
Hello,

just want to Check if I'm the only one experiencing an audio lag/delay off the SDI output of the 7Q? (Ex: when rerouting SDI signal to director monitor)
I'm not just talking about a couple of frames lag; I'm experiencing something like a 10sec audio lag VS the video image. Also the sound has changed, it sounds as if it was at 22050hz or something like it
The audio output on the 7Q is fine.

Not a dealbreaker, but sure is something to be aware of

anyone experienced it?
Mitch, is this a known issue?

thanks
 
I am not aware of this, but I will put it to our engineers.

What is the type of signal being fed into the Odyssey? Is this a RAW signal or an HD video signal from the camera to the Odyssey? SDI in or HDMI in? What frame rate?

Sorry for all the questions. Just want to get down to the issue in question as directly as possible.
 
So Mitch, I just did a couple of tests for you :

FS700 4k RAW @ 24p & 30p SDI out > 7Q SDI in 4k raw > SDI out to director monitor = audio delay of about 15sec + sound like 22050hz
FS700 4k RAW @ 24p & 30p SDI out > 7Q SDI in 4k2HD > SDI out to director monitor = audio delay of about 15sec + sound like 22050hz
FS700 2k RAW @ 24p & 30p SDI out > 7Q SDI in 2k raw > SDI out to director monitor = audio delay of about 15sec + sound like 22050hz

FS700 HD1080 @ 24p & 30p SDI out > 7Q SDI in HD prores > SDI out to director monitor = audio OK

and whether I use HDMi as IN / OUT of the FS700 or 7Q = no audio at all.
(I mean when I go HDMI out of the FS700 directly to the director's monitor, the audio is fine. It's when I go through the 7Q that I've no audio at all with the HDMI signal)

thanks for taking a look a this issue
 
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