[linux-audio-dev] Some help with my BPM algorithm?

[Alfons Adriaensen]

On Tue, Mar 23, 2004 at 08:45:15AM +0000, Steve Harris wrote:

> I think therers also a wavelets function that can do correlation of audio
> more effeciently than a linear search, but I might have just dreampt it :)

Filter, take amplitude, downsample, FFT, power spectrum, inverse FFT.
This gives the autocorrelation. Select the highest peak.

-- 
FA