Echocompensation and noise suppression for speech recognition applications

This contribution deals with the role and the performance of echocompensation and noise suppression, when used in combination with speech recognition systems. For two applications of interest (speech control in car or via telephone) there are quite significant differences to classical echocompensation and noise suppression for telephone conferences. It will be pointed out, how the systems are structured, what performance can be achieved and how realtime solutions are looking like.