I have a cd given to me that was recorded at the wrong speed

How do I slow it up a notch?

Pancenter wrote:
Mike Connelly wrote:
My guess would be that they had a file at 48k and put it on CD without sample rate converting it. I would try doing a pitch and time change based on the 44.1/48 ratio and see if that is right.
Ummmm, you can't burn a Redbook audio CD at 48. I'm not sure you can burn any kind of valid audio CD at 48. If these are files on a data CD, then yep, it could definitely be a sample rate problem.
pancenter-
Sorry I wasn't clear. I meant that it's possible that the files may have originally been at 48 and when they went to burn a CD, instead of sample rate converting, the 48k files were just read as 44.1 files and burned without converting (which would change the tempo and pitch). Doesn't happen often, but I've seen where headers were ignored by an app and just assumed instead, resulting in wrong playback speed/pitch.
Although from the original post, that may not be what he's asking, the recording may be technically fine but he just wants it slower.

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