The files recorded on QU drive claim to be 48K sampling which is the same as most video cameras. Yet when brought into Final Cut Pro for editing, the QU recording tracks go out of sync within seconds.
Bug or what?
Can you simply send the the desired audio feed from the console directly into the camera and record it alongside the video? This will prevent any syncing issues. Obviously it depends on if the camera as an external audio in port, but most will.
I did do that but it is only two channels. The value of Qu drive is 16 tracks so the sound track can be enhanced in post. My view is that it is a bug. It should line up perfectly and stay in sync if it were recorded properly.
If two audio tracks (camera and QU) run at such different speeds as you described, they should also have a different pitch in their raw format.
But this probably only occurs after importing into your video editing app.
I’m not familiar with your app or its (automatic) correction options, and I don’t know how much experience you have with it.
But it could possibly be because the video frame rate of your recorded video material simply doesn’t match the created film project, so its speed isn’t correct.
Video editing has long integrated audio recorded on external devices. The sampling rate is the key. Both camera and QU use 48Khz sampling rate. The QU files should come right into the timeline (Final Cut Pro) which has the audio sampling at 48Khz. Other devices work fine and I have done this plenty. This looks like a problem with the QU.