Fix a master that failed
A master can stop in two places: on the upload page, before the file is sent, or on the job page, after mastering starts. Either way the page says why. Find the message below to see what to do.
The upload page refuses the file
The upload page checks the file before sending it. If it can't take it, a line appears under Browse files and nothing is uploaded. For example, a 13-minute track reads This track is 13:00 long. The limit is 12 minutes.
The page takes WAV, AIFF, FLAC or MP3, up to 1 GB, at 44.1 kHz to 96 kHz, mono or stereo, up to 12 minutes long (6 minutes above 48 kHz). Export the mix again within those limits, then add it.
The job page says Not delivered
If mastering stops, the job page's status reads Failed and Not delivered gives the reason. When the problem is in the file, the button reads Upload a different track; when it is on our side, it reads Try again.
Every message, and what to do
| The job page says | What to do |
|---|---|
| We couldn't read this file as WAV, AIFF, FLAC or MP3. | Press Upload a different track, fix the file and upload it again. The same file fails the same way every time. |
| Sample rate must be between 44.1 kHz and 96 kHz. | Press Upload a different track, fix the file and upload it again. The same file fails the same way every time. |
| Tracks can be up to 12 minutes long, or 6 minutes above 48 kHz. Export at 48 kHz or trim the track, then upload it again. | Press Upload a different track, fix the file and upload it again. The same file fails the same way every time. |
| Files over 1 GB aren't supported. | Press Upload a different track, fix the file and upload it again. The same file fails the same way every time. |
| This file can't be mastered: its audio is damaged, silent, or shorter than 2 seconds. | Press Upload a different track, fix the file and upload it again. The same file fails the same way every time. |
| Our reference master is unavailable right now. Try again in a few minutes. | Press Try again on the job page. If it fails again, tell us with Send feedback in the sidebar. |
| The master didn't pass our quality checks, so we didn't deliver it. Try again — and if it repeats, we're already looking at it. | Press Try again on the job page. If it fails again, tell us with Send feedback in the sidebar. |
| Something went wrong while mastering this track. Try again. | Press Try again on the job page. If it fails again, tell us with Send feedback in the sidebar. |
| Our mastering engine stopped before finishing this track, on every attempt. This is on us — try again shortly. | Press Try again on the job page. If it fails again, tell us with Send feedback in the sidebar. |
Back to Master a track.