An Echo-Canceler in an Unknown Environment Using a Single Microphone
نویسندگان
چکیده
منابع مشابه
An Echo Canceler for Workstation Audio
Remote conferencing using desktop workstations is becoming commonplace. Typical audio conferencing hardware consists of a room loudspeaker (often built into the workstation) and a stand-alone microphone. Because there can be strong coupling between the loudspeaker and mike, undesirable echo signals can result. We propose to eliminate these signals using well understood echo cancellation algorit...
متن کاملAn Adaptive Acoustic Echo Canceler for Hands-Free Teleconferencing
of the transmitted acoustic energy impinging on the Porayath, R., Doherty, J. F., and Russell, S. F., An Adaplistening apparatus, which are transmitted back as tive Acoustic Echo Canceler for Hands-Free Teleconferencdelayed replicas of the speaker’s voice. The nature ing, Digital Signal Processing 6 (1996), 29–36. of the acoustic echo patterns can change rapidly due to variations in the environ...
متن کاملRealtime Performance of Acoustic Echo Canceler and Postfilter for Residual Echo Suppression in the Car Environment
Introduction There is a strong acoustic coupling between loudspeaker and microphone of car hands-free telephones. A power coupling factor between -10 dB and 10 dB must be expected. The exact value depends on the desired loudspeaker volume in the presence of background noise and on the installation of loudspeaker and microphone in the car. The impulse response of this electroacoustic loop has a ...
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چکیده ندارد.
A hybrid mono/stereo acoustic echo canceler
In many applications, such as teleconferencing, multimedia workstations, televideo gaming, etc., stereo sound is already, or will soon be, implemented to give spatial realism that mono systems cannot offer. In such hands-free systems, stereophonic acoustic echo cancelers are absolutely necessary for full-duplex communication. In this paper, we propose a new acoustic echo canceler (AEC) based on...
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ژورنال
عنوان ژورنال: Transactions of the Society of Instrument and Control Engineers
سال: 1994
ISSN: 0453-4654
DOI: 10.9746/sicetr1965.30.460