WORLD -- extract fundamental frequency and spectral envelope from audio

Useful Tools and Components
1

http://ml.cs.yamanashi.ac.jp/world/english/index.html

This is a good algorithm. I've been using it. Linking it in case it is of interest to the community..

This is freely available for non-commercial use.

π

2

Thanks - I've been using the YIN algorithm successfully,  be interesting to see how this compares.