Title :
A new echo canceller realized by high performance digital signal processor
Author :
Oikawa, Hiroshi ; Minami, Shigenobu ; Saeki, Takashi
Author_Institution :
Customer Equipment Div., NTT, Tokyo, Japan
Abstract :
A multi-echo-path echo canceller (MEP-EC) is described, which works well together with a microphone selection unit. Echo cancellation performance was measured in a teleconference room, and 28-dB echo cancellation was obtained. The echo cancellers were implemented in an acoustic echo canceller system, ACII, for teleconferencing.<>
Keywords :
digital signal processing chips; echo suppression; teleconferencing; ACII; acoustic echo canceller system; digital signal processor; echo canceller; microphone selection unit; multi-echo-path echo canceller; teleconference room; Acoustic noise; Digital signal processing; Digital signal processors; Echo cancellers; Loudspeakers; Microphones; Noise level; Noise reduction; Tail; Teleconferencing;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo, Finland
DOI :
10.1109/ISCAS.1988.15173
