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Rainburst Author

Level 1

12 points

Logic Pro X found audio files in 8 bit format

Every time a open my project the alert pops out:

"Logic Pro X found 8 audio files in 8 bit format. / This format is unsupported and cannot be played back."

Some of the regions that were fine previously stopped playing and I've lost the tracks that I recorded on Saturday.

After recording I bounced a project to send my friend a rough mix, but when I got home and checked it on different speakers, I decided to tweak it a bit. That's when I noticed some of the files were gone. How could this happen?

I've located corrupted audio files on my disk and the couldn't be played with iTunes.

Logic Pro X: 10.3.3

Macbook 15 inch with touch bar and Touch ID on High Sierra: 10.13.2

FileVault was turned on – I turned it off since.

P.S. Maybe there was a software update in between bouncing and me reopening the project.

MacBook Pro TouchBar and Touch ID, macOS High Sierra (10.13.2), Logic Pro X: 10.3.3

Posted on Dec 18, 2017 11:37 PM

Best reply

marc585

Level 1

4 points

Posted on Dec 20, 2017 5:08 PM

I just opened a project recording Nov 29th and had the same problem - logic found 8 bit audio and can't read them. The recording was a string quartet -- this could be very expensive....

I was not using file vault.

marc

View in context

26 replies

May 3, 2018 11:42 AM in response to Rainburst

I'm pretty sure it is a problem with the formatting of the drive on which the project is running when it is saved.

I recently purchased a Samsung T5 SSD portable and started using it to run my Logic Projects. Suddenly I started getting this problem. The drive was formatted to ExFat.

I backed everything up on the drive and I just reformatted it as HFS (Mac Journaled), after which I moved everything back onto the drive.

While this didn't fix the already-corrupted files, it does seem to have stopped happening now. I hope this helps somebody!

Rainburst Author

Level 1

12 points

Dec 19, 2017 5:36 AM in response to Rainburst

I have contacted Apple support and uploaded files for the investigation. I will update the post if new details are uncovered

Pancenter

Level 6

14,668 points

Dec 21, 2017 4:47 AM in response to marc585

Marc

Have you checked your recording and/or system disk for errors. As I recall Logic displays the 8-bit file message when it can't read the audio file header.

Pancenter

Level 6

14,668 points

Dec 22, 2017 8:59 PM in response to Pancenter

Just checking to make sure you received the file I sent back.

Pancenter

Level 6

14,668 points

Jan 3, 2018 9:34 AM in response to Rainburst

Your situation sounds like a possible hardware failure. You said the file I edited and sent back was still distorted, yet it was perfectly clear on both my Mac & PC. That sounds like hardware.

Rainburst Author

Level 1

12 points

Feb 5, 2018 8:29 AM in response to Rainburst

Seems like this problem was fixed in 10.4 though I couldn't find details in update notes.

Works perfectly so far.

Rainburst Author

Level 1

12 points

Feb 6, 2018 5:40 AM in response to casey_hurd

I will.

Feb 18, 2018 1:33 PM in response to Rainburst

Any update on this? Has Logic corrupted any files yet since updating? Thanks!

Rainburst Author

Level 1

12 points

Feb 19, 2018 7:04 AM in response to casey_hurd

I wasn't able to reproduce it on my system

Rainburst Author

Level 1

12 points

Feb 19, 2018 7:05 AM in response to volker171

Hi volker171, thanks for sharing your experience! What version of Logic are you using?

Feb 21, 2018 6:27 PM in response to Pancenter

Pancenter, thanks for the offer. I'll give it a shot and take you up on it ;-)
Couldn't seem to spot a way to write you a personal message, or is that not possible in this forum..?

Cheers volker

Logic Pro X found audio files in 8 bit format