APPARATUS, METHODS AND COMPUTER PROGRAMS FOR PERFORMING ACOUSTIC ECHO CANCELLATION

APPARATUS, METHODS AND COMPUTER PROGRAMS FOR PERFORMING ACOUSTIC ECHO CANCELLATION

An AEC system can implement different updating techniques for echo cancellation. A Block Maximum Likelihood updating technique updates filter coefficients typically at integer multiples of a block size. A Proportional - Incremental Maximum Likelihood updating technique applies proportional weighting...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JALALI, Shirin, NUZMAN, Carl
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An AEC system can implement different updating techniques for echo cancellation. A Block Maximum Likelihood updating technique updates filter coefficients typically at integer multiples of a block size. A Proportional - Incremental Maximum Likelihood updating technique applies proportional weighting to the updates of filter coefficients. A Multisource Incremental Maximum Likelihood updating technique uses separate control parameters associated with each of multiple loudspeakers. Combinations of these may be used, and one or more of these can be selected and implemented in real-time.