Re - How to find out BPM (Tempo) of an audio clip.
Method 1: Lorneyb2 method above is best, just check 'enable looping'. Here are 2 more.
Method 2: Download the free MixMeister Bpm Analyzer. You must give a current email address.
MixMeister BPM Analyzer is a free program to determine the exact BPM (beats per minute) of any song.
Install and run BpmAnlyz.exe, drag clip into MixMeister, and it will display the exact BPM.
http://www.mixmeister.com/bpmanalyzer Exerpt from above website: "BPM Analyzer allows you to:
Calculate extremely accurate BPM counts for any song
Drag and drop music files from Windows Explorer
Display and sort files by Title, Artist, or BPM
Update ID3 tags in your music files with exact BPM information
Easily print BPM reports for your entire music collection
Export BPM counts for use in other programs
Free to use and distribute for non-commercial purposes"
Method 3: Manual calculation:
Trim the audio clip to omit silence at start and end of clip.
Groove Clip properties - auto stretching - enable looping - displays the no. of beats. Eg. 16 beats
and tab General - seconds - displays the length of the clip (in seconds). Eg. 7.5 sec
BPM is the no. of beats divided by the length (in minutes). Eg. 16 / (7.5 / 60) = 128 BPM