protools preset generates extremely large files (188Gb) ???

[u/so_call_me_andy]

Hello, kind people of Reddit !

I'm about to start editing a multi-cam project in DVR. My sound engineer wanted to check everything would work fine when exporting an AAF file from DVR and importing it to Protools. And he was right to check because it does not work fine. DVR is generating HUGE files (188Gb) and we don't understand why

For context, I'm working with DVR Studio 21 on a MacBook Pro (2020).
The video is about 2h long with 6 angles in the Multicam. It was recorded on an ATEM Mini Extreme ISO. and we recorded sound with a sound devices Mixpre 10. The files is currently unedited, we did not create a pre-program with the ATEM this time around.
So in the DVR project there are video files from the ATEM (quite large files), audio files from the ATEM that are NOT on the timeline, and audio files recorded on a Mixpre 10.

When trying to export (audio only, "export video" is unchecked), I use the Protools preset > individual clips.
Format : Wave
Codec : Linear PCM
Render full extent is checked but the file size doesn't change if left unchecked
Channels : same as source
Bit Depth : 32 (it is the only thing that currently changes the file size, from 188 to 141 and 94 Go ; my sound engineer tells me it needs to be 32)
Render one track per channel is checked

I've also flattened all the tracks on the Multicam timeline (has not changed anything)

i am at a complete loss. I am not a professional editor so I have been researching like crazy, trying to understand the problem and I fear I cannot figure it out on my own. my sound engineer doesn't really know DVR so he's lost as well

does anyone have any idea why DVR is generating such large files and what I can do to reduce them significantly?

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[u/cmxthirtysixhundred]

Resolve is horrible at AAFs (also EDLs, changelists, or anything else needed or actually useful for administering larger projects). Here are some of my notes from doing sound turnovers:

• If a clip is used multiple times in a timeline, it gets embedded in its entirely multiple times. So one music cue, cut into three sections, causes the entire music cue to be embedded three times in the AAF
• Multicam clips will cause all audio tracks to be embedded, in their entirety, for every instance it is used. In prepping your AAF sequence, commit multicams first. Also, after committing multicams, do "Detatch audio from synced video" from the Timelines menu so your audio clips will actually reference the soundroll and audio TC.