Audio only plays Channel 1 from any source - multiple projects

[TomSzy]

Hi,

I'm having a huge problem with audio on MULTIPLE projects that worked fine yesterday. This has appeared inPR (beta) 24.5.0 build 28. It plays fine in regularPR 24.3.0 build 59.

For any clips that have multiple channels, it only plays the first channel all of a sudden. If it's stereo, like from an iPhone, it plays audio, but it's hard to tell which channel it actually is. If you make it mono with 2 channels, then it only plays channel 1. On MXF files from our pro camera, we have 4 channels of audio, and it will only play channel 1 (we have 1:shotgun, 2: nothing, 3: DJI mic1, 4: DJI mic 2 - in this case we actually didn't even use channel 3).

I've updated PR (beta), restarted PR (beta), restarted the mac, made new sequence and dropped clips into there, tried old projects, tried autosave versions of this project from yesterday, and I've tried exporting, it still does this.

Mac Studio m2 ultra 64gb ram

PR (beta) 24.5.0 build 28

PR 24.3.0 build 59

Here's a link to show what it's doing (sorry for so many blurs, trying to cover privacy issues)

https://youtu.be/N-2v9nYT4ig

Thanks!

Tom

[TomSzy]

Ok, a few more things I've tried...

I've dumped all of the preferences, still no audio

I checked the preferences on PR beta vs PR and they look identical

I checked sequence settings and it's Stereo, 2 channels, 4800hz, audio samples

I've tried putting clips into a new sequence

I've tried putting audio onto different tracks and no luck.

I've tried getting rid of other audio channels and solo / muting, as well as enabling/disabling.

I know it's dumb, I've played it onto different speakers and airpods, same thing.

The only audio from the clip that plays is always audio channel 1 (on the clip).

Anyone have any ideas???

Here's what it's doing:

https://youtu.be/N-2v9nYT4ig

Thanks!

[Ben Insler]

I know it's dumb, I've played it onto different speakers and airpods, same thing.

Not dumb!  Great testing.  Thank you.

I just tested this in Premiere Pro 24.5.0 Beta Build 28 and 24.5.0 Beta Build 33. I imported a .mov with 6CH audio, and I am able to hear all channels in both the Source Monitor and when cut into a sequence.

A few questions:

• I'm assuming you were working in a different version of Premiere Pro before opening this project in 24.5.0 Beta Build 28.  Is this correct (and if so, do you remember what version you started in)?  Or was everything working correctly in Build 28 and then this just... happened.
• Are you using Mercury Transmit and/or any video output hardware?
• Can you please test importing a new multichannel clip and see if the channels play correctly?  This will identify if Premiere Pro could be interpreting existing items in the project differently from new ones.

[Christof Mathies]

Thanks for reporting the issue, @TomSzy! We have identified the root cause and have a fix available that will be part of Premiere Pro 24.5.0 Beta Build 34 once it is available for you.

[TomSzy]

Thank you!! Looking forward to it!

[TomSzy]

Thanks for the ideas, Ben! I didn't get a chance to try those ideas yet, but it looks like there'll be a fix.