PARTICIPANT CONTROLLED SPATIAL AEC

摘要

Methods and systems are provided for speaker separated spatial acoustic echo cancellation (AEC). A new approach is provided to combat the non-identifiability issue in multiple loudspeaker arrangements with shared echo cancellation processing. By associating echo channels with actual speakers (e.g., participants, talkers, users, individuals, etc.) rather than loudspeakers, the methods and techniques provided allow for continued use of mono AEC. Also provided is a straightforward speaker detection scheme for identifying different speakers in a stereo loudspeaker environment.

主权项

1. A method for acoustic echo cancellation comprising:
determining an active participant in an audio conference, wherein the active participant is one of a plurality of participants in the audio conference; identifying a corresponding echo channel specific to the active participant; converting at least one audio signal of the active participant received at a near-end of a communication path into a mono signal; and performing echo cancellation on the converted mono signal based on the corresponding echo channel specific to the active participant.