DocumentCode
1709230
Title
20-kHz frequency-range acoustic echo canceller for high-quality TV conferencing
Author
Fukui, Masahiro ; Nakagawa, Akira ; Shimauchi, Suehiro ; Haneda, Yoichi ; Kataoka, Akitoshi
Author_Institution
NTT Cyber Space Labs., NTT Corp., Tokyo
fYear
2009
Firstpage
1
Lastpage
2
Abstract
This paper presents an overview of a new sub-band acoustic echo canceller for the 100 Hz-20 kHz frequency band that we have developed. It consists mainly of adaptive digital filter and echo reduction processes to eliminate an echo signal. The experimental results indicate that the new echo canceller suppresses the echo signal at least over 35 dB and delivers natural near-end speech sound even during double-talk situations.
Keywords
adaptive filters; digital filters; echo suppression; teleconferencing; videotelephony; TV conferencing; acoustic echo canceller; adaptive digital filter; echo reduction; frequency 100 Hz to 20 kHz; videotelephony; Band pass filters; Digital filters; Echo cancellers; Erbium; Frequency; Signal processing; Space technology; Speech analysis; Switches; TV;
fLanguage
English
Publisher
ieee
Conference_Titel
Consumer Electronics, 2009. ICCE '09. Digest of Technical Papers International Conference on
Conference_Location
Las Vegas, NV
Print_ISBN
978-1-4244-4701-5
Electronic_ISBN
978-1-4244-2559-4
Type
conf
DOI
10.1109/ICCE.2009.5012205
Filename
5012205
Link To Document