Absolutely Enormous Audio Preview Render Files

[DrifterGames]

Howdy,

On a current project I'm running into an issue with Premiere 22.0 and 22.1 where "render audio" renders (literally) terabytes of audio preview files for a 1hr doc. Not had this problem before, and now I can't render audio effects without filling up a massive amount of hdd space. Premiere is writing at over 1gbps for 10-15min when rendering the previews.

Sequence has got a number of multicam sequences that are set to two channel stereo, as is the main comp. Audio files for the project are all 32bit 48k wavs, which should match my project settings. Not quite sure what to do here. When I render out the sequence it doesn't spend any time rendering the audio, but rendering the audio previews takes 5-8 times as long as rendering the entire timeline to video.

Anyone have any thoughts?

[Jeff Bellune]

Silly question, but what happens if you *don't* render audio previews at all?

Can you get real-time playback in Pr? 

Are your export times still good? (I'm using export for creating a finished file from your sequence, as opposed to using render to create the previews within your sequence while you work on it.)

[DrifterGames]

Thanks, and yes I get real time audio playback just fine and export times are great. It's only the audio preview rendering that's the problem. It's not a silly question, but I'm trying to catch minute audio issues and the realtime playback seems to make those harder to catch, hence the desire to pre-render. It's not a strict necessity, it's just weird that I can't without filling up a large hard drive...

[Jeff Bellune]

As you may have already found, there are a couple things that have helped other people with this issue in the past, however neither of them seem to be a universal solution. My next questions relate to those.

• You indicated *all* of your audio assets are 32/48. Is there any chance there is a naughty little asset hiding in there somewhere that isn't 32/48?
• When you render your audio previews, are you using the whole sequence or just the portion between in/out points?

I had a few random thoughts:

• Does this happen with every project or just this one?
• Have you tried 24/48 assets? Maybe the bit depth is an issue.
• If you are trying to render audio in a sequence that has nested sequences in it, try rendering the audio in the nests first, sort of building up previews from the bottom up. I'm having infinite loop type thoughts here.
• Does the workspace affect the rendering time/size at all? Say the Audio workspace vs the Assembly workspace? Maybe even go crazy and reset your workspace.

[neil wilkes]

Personally, I would not even attempt to do both video edit & audio edit at the same time.

That's really asking for trouble - try what Jeff says, export without pre-rendering and listen carefully to the output.

[Jacob.5]

Still having this problem after updating to 25.4.1 (Build 3) on M1 Macbook pro max. I'm using multicams with multiple different audio tracks so that I can put effects on un-cut audio within the multicam sequence and have it apply to everywhere in the project that uses that multicam sequence. The problem is that any time I make any change to an audio file that's inside a multicam sequence, I lose all waveforms in any sequence where that multicam clip appears. The only way I've found to get my waveforms back is to "render audio" which of course yields massive render files that fill up hundreds of gigs with only 2-3 renders. Is there any other way to manage this besides spending more money on more drives?!

[claudia_7706]

I’m having the exact same problem on my end — also with multicam sequences that include several audio tracks. The only way to get them back is to “Render Audio,” which ends up generating huge preview files.

Did you ever find any workaround or solution for this?