Quick Export is exporting the audio stream in reverse

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shirakaba

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  • Joined: Mon Apr 05, 2021 6:59 pm
  • Real Name: Jamie Birch

Quick Export is exporting the audio stream in reverse

PostMon Apr 05, 2021 7:02 pm

Does this ring a bell to anyone? It's my first time using DVR but I hadn't expected something like this. I'm using DVR 17.1.1 build 9 (downloaded today) on macOS Catalina (with an Intel Mac). I simply chose "File > Quick Export..." and selected the H.264 option.

I was able to confirm that the audio is indeed in reverse by running ffmpeg over the exported file (export.mov) to un-reverse the audio like so:

Code: Select all
ffmpeg -i export.mov -c:v copy -af areverse export_reversed.mp4


Viewing that post-processed file (export_reversed.mp4), the audio suddenly made sense again, but the audio stream nonetheless started a bit late so would need resyncing, which is a pain.

Has anyone encountered this? Is there any way I can export my data correctly? I've sunk a whole day of work into this now.
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Jim Simon

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Re: Quick Export is exporting the audio stream in reverse

PostTue Apr 06, 2021 3:24 pm

Testing now...
My Biases:

You NEED training.
You NEED a desktop.
You NEED a calibrated (non-computer) display.
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Reynaud Venter

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Re: Quick Export is exporting the audio stream in reverse

PostTue Apr 06, 2021 3:36 pm

Are you experiencing this behaviour only with the h.264 preset in the Quick Export window?

Not reproducing on macOS Catalina with Resolve Studio 17.1.1.
Fairlight Studio Console 3 Bay • Merging Hapi • Anubis • Merging Premium VAD (3.5.0) ↔︎ Lawo VSC (1.0.0)
Mac Pro 7,1 Rack • Resolve Studio 20.0 • macOS 15.5 (24F74) ➩ 11" iPad Pro (M4) 1TB • iPadOS 18.5 (22F76)
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Jim Simon

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Re: Quick Export is exporting the audio stream in reverse

PostTue Apr 06, 2021 3:40 pm

My H.264 Quick Export came out fine in Studio 17.1.1 for Windows.
My Biases:

You NEED training.
You NEED a desktop.
You NEED a calibrated (non-computer) display.

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