Audio lagging

jrhooker

Hi all,

I'm having some issues with audio lagging.

I'm exporting video out from Premiere Pro and it looks great in quicktime, but when I bring it into Isadora the audio and video are no longer synced.

I'm running a brand new Mac Studio with NOTHING on it, so I can't imagine its a processing problem. But I'm sort of at a loss.

Isadora 4.1.3 (ARM) with a Apple M3 Ultra running Tahoe 26 and 96 GB memory.

Anybody have any suggestions about what's going wrong here.

Thanks,

Jake

Skulpture

@jrhooker what video file type and codec?

Woland

@jrhooker

Try exporting it as each of the following:

hap.mov
h264.mp4
apr.mov

jrhooker

Thanks @Skulpture and @Woland

After exporting several different file and codec combos, I realized that it was actually (maybe) a lag in my hdmi extender, which is old and not HDBaseT. I don't do a lot of this kind of content, so the lag was just much more evident...close ups of actors faces so the audio and video were just out of sync because of the lag.

Or at least that's my current theory. I ordered some new HDBaseT extenders and I'm hoping that will solve the problem. But I am using QT/Hap Alpha for the record.

Thanks, as always!

Jake

DusX

@jrhooker said:

that's my current theory

Can you run a test without the adapters, just a direct connection to a Display?