# Finding song tempo in Reaper First make sure timebase in Project Settings is set to "Time" rather than "Beats." Split a section of audio that spans at least a measure. Use tab to scroll through transients and split where you want. Press t to set [[Time selections in Reaper|Time selection]] to this item length. Then right click the ruler and create measure from time selection (new time signature).[^1] This can be done to make a tempo map if the tempo drifts throughout the song. The easier method is to just drop the tracks into Melodyne and have it tell me. [How To Find the BPM Of A Song In Reaper - YouTube](https://www.youtube.com/watch?v=vhb8Grj4-WE) [^1]: [Detecting Tempo Of Audio In REAPER](http://audiogeekzine.com/2010/11/detecting-tempo-of-audio-in-reaper/)