A real time acoustic echo canceller implemented on the Motorola DSP56307

This paper presents the implementation of a complete acoustic echo cancellation system working in real time. This system has implemented functional blocks that help the system to be stable under all the possible states of the hands free telephone communication. Subjective listening tests results, shows that the system has a good performance (four in a scale from 1-5) for all the effects under study, like loss of convergence, inability to follow change in acoustics and howling.