Audio Clip - Tempo automate sync issue

[wereMole88]

Hello,

I'm trying to automate my projects BPM to match a drum track recording. I currently have 8 drumtracks and an mp3 backing track. The drummer played to the backing track so everything is synced.

I wanted to mess around within Reason a bit with this material - so I'm trying to automate the BPM manually so that for example a player can play with the recording. The problem arises when I try to stretch the audio. All the drum tracks stretch synchronised but the backing track goes out of sync.

Everything is stretch disabled - I don't understand why the backing track is stretched disproportionally over the grid. I manually cutted all the audio takes and backing track so the clips are exactly the same length.

Before stretch: recording and backing tracks start at the same bar. It's a little to the left of the play position marker.



After stretch: backing track now starts earlier than the recording tracks. Tracks start at the play position marker.

[deeplink]

Right click the backing track and select bounce to new recordings

[wereMole88]

Thanks - I will try!

[wereMole88]

Bad luck - same problem persists

[deeplink]

I think I saw your (or another user) post a similar question on Reddit sometime ago.

I'm genuinely interested in providing some useful feedback, would you mind sharing the project file as a link so I can take a look?

[wereMole88]

Absolutely - I'll try to share it today. Thanks for the help.

https://www.reddit.com/r/reasoners/comm ... ing_audio/

This guy has the same issue - its not me however.

[wereMole88]

https://ufile.io/hqmdfntx

Here is the project -

[Jolla]

you need to make sure that the timestretch is enabled on all clips.

[wereMole88]

They move synchronised then yes - but aren't they just going to speed up/slow down with the transport BPM when automating/fitting it to the tracks.

Maybe I understand it wrong but I have to disable stretch of the audio clips in order to fit reasons' BPM to (imperfect) audio tracks BPM.

[wereMole88]

SOLVED! - I exported all the audio tracks to disc without tempo information. Then imported them all back in a new project. It all scales properly now.

Apparently what went wrong is that during the recorded I imported the backing track - disabled stretch and then set BPM from 120 -> 140 (to accomdate the drummer with a click). So the backup track was at a different BPM than the recordings.

But thanks for taking the time to help me out