Front-end audio processing for hands-free speech communication

Speaker: Christian Schuldt, Limes Audio

Abstract: 

In hands-free speech communication front-ends such as, e.g., conference phones, the microphone generally picks a desired speech signal that has been degraded by reverberation caused by the room, together with disturbing background noise and significant echo from the loudspeaker. Hence, there are three major problems that needs to be tackled: reverberation, noise and echo. This presentation will address ways of dealing with these problems, and the focus will be on practical signal processing aspects.