RE: [linux-audio-dev] Re: Speech analysis

Much of the latest speech recognition innovations use neural network technology with back propogation for training and learning. They can be trained to recognize a wide range of voice types and can detect works strung together into normal speech. The input to the neural net is a formant analysis using fft to create the harmonic pattern. With proper arrangment it will even accomodate variances in the speed of speech as well as whether the voice is male or female. It can also return a signal of the inflections made by the speaker. It is an item that has been studied for years in the computer science realm and there is no quick solution to do it well.