finding tempo after importing wav file

Audacity Help Forum Windows
1

I have a wav file that we imported into audacity 2.x on our Windows 7 Enterprise OS.
My question is:
How do I make a click track from the imported file?
I know how to set the tempo on the file but when I create a click track it does not sync properly.
Is there a way to analyze the imported wav file and create a click track from the analyzed file?
So again, imported a wav file, need to create a click track that is in sync with the file.



Thanks so much.
Rich

2

If the music has a constant tempo,
zoom in on a beat and add a label at the exact start of the beat. http://manual.audacityteam.org/o/man/label_tracks.html
Count a number of beats further on (for accuracy, the more the better) and place another label precisely at the start of that beat.
Set the time units to hh:mm:ss+milliseconds in the Selection Toolbar. http://manual.audacityteam.org/o/man/selection_toolbar.html
Select from the first label to the second label by clicking and dragging across the waveform. If you need to adjust the end position of the selection, hold down the shift key when you click.
Set the Selection Toolbar to show “Length”.

The number of beats per second is:
divide by

To get the tempo in beats per minute, multiply by 60.

3

So that would be no, there’s no button that tells you BPM.
You can do it with a stopwatch and a calculator, but the Labels are much more accurate.
The problem is if you have a song with a strong back-beat. The extra rhythm effects can fake out BPM counters. You, on the other hand, are pretty good at figuring out where the real beats are.

Koz

4

Actually, there is a very cool way to automatically find not only the BPM, but also the actual tempo beats for your imported sound file. You need to install the Queen Mary, University of London, Vamp plugin from vamp-plugins.org. To get the BPM as an annotation, use Tempo and Beat Tracker: Tempo… plugin. The Tempo and Beat Tracker: Beats… shows you more of a real-time view of the BPM with a beat-by-beat BPM variation. Another useful BPM analysis tool is the Bar and Beats: Beat Count… This one actually gives you the 1, 2, 3, 4 counts for your imported music. Very cool. Hope this helps.