Older blog entries for danstowell (starting at number 50)

Bird sound analysis with MPTK: chirp vs gabor

I'm just back from a great two-week research visit to INRIA in Rennes. The fruit of our labour will be a new release of the Matching Pursuit ToolKit with some whizzy extra features and polish. In my previous blog entry I showed how we can use Matching Pursuit to detect patterns in spectrograms - now I want to show you a quick example of how these techniques can give you a clearer, more meaningful representation of sounds such as birdsong.

On my way home one day I got a nice recording of a chiff-chaff, so we'll use that as our example. (I also put the longer audio on Xeno Canto as XC125867.)