Hi, I've been studying miremotion a little bit and in that context also mirfluctuation. It seem to me that you are using the peak value of the summary (the plain sum) of mirfluctuation as input for miremotion. However, this value does not seem to be normalized, i.e. it seems to heavily depend on the length of the audio fed into it. In my tests, long audio pieces seem to consistently produce higher peak (summarized) fluctuation values. If that's really the case, miremotion results should also heavily depend on the audio length, which is probably not desired. Am I missing something crucial here? Thank you. -hendrik tagtraum industries incorporated 724 Nash Drive Raleigh, NC 27608 USA http://www.tagtraum.com/ http://www.beatunes.com/