Abstract / truncated to 115 words (read the full abstract)

Hands-free speech communication devices, typically equipped with multiple microphones and loudspeakers, are used for a wide variety of applications, such as teleconferencing, in-car communication and personal assistants. In addition to capturing the desired speech from the user, the microphones pick up undesired interferences such as background noise and acoustic echo due to the acoustic coupling between the loudspeakers and the microphones. These interferences typically degrade speech quality and intelligibility, and negatively affect the performance of automatic speech recognition systems. Acoustic echo control systems typically employ a combination of acoustic echo cancellation (AEC) and residual echo suppression (RES). An AEC system uses adaptive filters to compensate for the acoustic echo paths between the loudspeakers and the ... toggle 7 keywords

acoustic echo cancellation – residual echo suppression – tap selection schemes – partial update adaptive filters – dynamic effort allocation scheme – output error – equation error

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