Speed of Imported Audio Slowed

[willmo04]

Hello all.
Im currently trying to do a drum cover of a song with my electronic drum kit.
I found a drumless track online and downloaded it.
Did file>import>audio
Selected the file.
Opened the options to convert it.
Made sure SRC was selected to convert from 41kHz to 48kHz (current session SR)
I also matched my session bit depth to the imported audio's bit depth (but also tried it without doing that).
The audio doesn't line up with the midi drums I recorded.
It slows down over time.
I do not have any tempo changes in the session.
The midi has lined up fine with some other files.
Sometimes it works, sometimes it doesn't.
Any thoughts are appreciated!

[Top Jimmy]

It sounds to me like the tempo of the audio file isn’t the exact same tempo as your session. Do you know how to change the tempo of the session to match the audio?


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[Darryl Ramm]

^^^ What Jimmy says. And maybe there are tempo changes in that audio you downloaded.

In general you cannot rely on two things that are presumably the same tempo/beat to just line up. Not unless they are MIDI/VI tracks with proper clocking as needed. Thankfully lots of music is not such a robotic thing.

You can try fine tuning the tempo of your stuff, or move your MIDI around manually if needed or maybe use elastic audio on the audio tracks you have downloaded (please less robot, try the earlier options).

[willmo04]

I do! Also, I tried creating another session with the sample rate to match the file and it did the same thing. I imported the original of that song (not the drumless track) and it worked just fine. It may just be something with that file specifically.

[Darryl Ramm]

Then you can compare the drumless and original tracks side by side in Pro Tools and see what the difference is.

The most common mistake out there is files just reporting they are one sample rate when they are the other. The common thing then would be 44.1 vs 48 and you would hear the pitch shift, or maybe somebody goofed and also pitch corrected the file, or if the tempo really varies then somebody elastic audio'ed or vari-speed rerecorded that track. These sorts of problems are effectively always input file sample rate type issues not due to the DAW.

[willmo04]

That’s a very good point. I’ll give that a shot when I get the chance. Thank you very much!