To make sure to be able to edit the details, turn off snap to grid mode and zoom in real close when making the edits. Depending on how close the starting point of your audio file was to the first downbeat of the music in it, you might have to do some fine editing in order to make sure it lines up and plays completely in sync.

Import the audio file into your project.

Open the other project in 120 BPM that you were working on. Now you may have started your song at one tempo and decided that somewhere along the way, you needed to change it and make it a little bit faster or a little.

It is here that you can type in different BPM values, thus altering the tempo for your entire session. This will bring up your Tempo Change window.

Exit your project and return to your profile page. A new Pro Tools session defaults to a tempo of 120 BPM, but you can change it by double-clicking on the red triangle in your Tempo ruler.

Next, export the individual audio track.

A popup appears, asking if you want to adjust your audio data to match the new tempo.

Import your audio file and change the tempo to 120 BPM.

Start a new blank project and set the tempo to 140 BPM.Say you have a file in 140 BPM that you want to slow down to match a project that is in 120 BPM. In the meantime, you can follow the steps below as a workaround. If you want to change the region to a specific BPM, we, unfortunately, don’t have a button/function yet for that. If you want it to snap, make sure to zoom in when adjusting the region to get more accuracy.

NOTE: Make sure to turn on/off snap to grid depending on if you want to drag the region to snap or be dragged more smoothly. This can be done as many times as you need. Press the pointer and drag forwards/backward the region to increase/decrease the tempo.Press and hold Alt/Option, you will see a two-way arrow.Hover over the bottom right side of the region.Time stretch can be used to change the tempo of individual regions to non-specific tempo (BPM).

How to change tempo in pro tools 10