Synchronizing Tracktion to sloppy timing

[No_Use]

I have a multitrack recording from a band's song which they didn't play to a metronome and so has some tempo changes.
What is the best way to synchronize T2's project tempo to it for remixing?

[IIRs]

I've not had to do that, but this is what I'd try if I ever did:

Take your kick drum track (or drum sub-mix, whatever) and split it into sections. How big the sections are will depend on how much the timing varies.. obviously if there are any sudden changes you will need a split to coincide with that. (Zoom right in so you can split right before the downbeat.. if you screw up you can slip-edit using the clear triangles on the top bar)

now press the 'timecode' button, and make sure 'remap clip positions when tempo is changed' is turned OFF.

For each split clip, position the cursor at the very start and insert a tempo change. Now select the clip, and press the 'auto-tempo' button:



repeat until you have a complete tempo-map of the track..

[ornitholestes]

Excellent tip. I tried to figure out how to do this kind of thing before and just gave up. I can see how this would really do the job. Thanks for that!

Mike

[valley]

be careful when doing this with MIDI clips, as Tracktion will scale the MIDI clip after the tempo change, irrespective of the "remap clip positions" settings.

After the resize you will likely need to reset the clip content offsets, and restretch the clip.

[semiquaver]

thanks valley great tip!

[No_Use]

Yes, I've been fiddling around like this before, only got stuck because I didn't insert a tempo change right before the clip so everytime the tempo for the whole project changed which was useless...

Also I tried another thing:
Imported the Audio Tracks to Cubase, tapped the beats to it on my Midi-Keyboard (recorded the notes) and used the comfortable "extract tempo from Midi" function (wish T2 had something similar or a graphical way to adjust tempo changes) and reimported the Midi-File back to tracktion.
Tracktion took over the tempo-changes!
However trying to insert another tempo-change tracktion gave me a "this project already has too many tempo changes" message. Weird, but since everything had been synchronized no matter.

[IIRs]

Tracktion also has a tap-tempo feature in case you didn't realise: you could use this to set an initial tempo, then insert a tempo change each time you hear it start to slip and tap away again..

[semiquaver]

is there a way to lock midi clips to preserve realtime performance so that the contents *dont* change when you insert a tempo change? If not this would be very usefull for tempo mapping - particularly music for picture...

[valley]

not easily - I raised this as a semi-bug a few days back.

To get out of trouble you can work around it by creating a region of your edit that is in another tempo zone. Set that tempo of the new region to match you current region. Move your clip into it, change the tempo of the are you are working on, then move the clip back.