Method and apparatus for erasing acoustic echo

Autor: Okuno Takatoshi, Mikio Tohyama, Hirofumi Yanagawa
Rok vydání: 2000
Předmět:
Zdroj: The Journal of the Acoustical Society of America. 108:476
ISSN: 0001-4966
DOI: 10.1121/1.429551
Popis: An acoustic echo erasing apparatus which generates a pseudo-echo component from an audio reception signal (a vector x 1 ) using an adaptive filter, and removes the pseudo-echo component from an audio transmission signal (a vector y). The apparatus extracts a feedback component depending only on the audio reception signal from the audio transmission signal, and passes the audio reception signal through the adaptive filter to generate the pseudo-echo component while setting a transfer characteristic of the adaptive filter in accordance with the feedback component.
Databáze: OpenAIRE