AUDIO PROCESSING SYSTEM FOR TELECONFERENCING SYSTEM

AUDIO PROCESSING SYSTEM FOR TELECONFERENCING SYSTEM

An audio processing system for use in teleconferencing systems having high and low transmission delays. The audio processing system utilizes complementary comb filters in combination with auxiliary echo suppressors, a frequency scaler, expander/gates and automatic level controlling devices to substa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DESMARAIS, JOSEPH, JOHN, SHTIRMER, GENNADY, ADDEO, ERIC, JOHN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:An audio processing system for use in teleconferencing systems having high and low transmission delays. The audio processing system utilizes complementary comb filters in combination with auxiliary echo suppressors, a frequency scaler, expander/gates and automatic level controlling devices to substantially improve acoustic stability margin and reduce far-end talker echo.