ÇѱÛÁ¦¸ñ(Korean Title) |
µ¿½ÃÅëÈ ¹× ÁÖº¯ ÀâÀ½À» °í·ÁÇÑ ÇÚÁîÇÁ¸® ȯ°æÀÇ ¹ÝÇâÁ¦°Å±â |
¿µ¹®Á¦¸ñ(English Title) |
An Acoustic Echo Canceler for Hands-Free Telephony, Considering Double Talk and Environment Noise |
ÀúÀÚ(Author) |
±èÇöÅÂ
ÀÌÂùÈñ
¹ÚÀå½Ä
Hyun-tae Kim
Chan-Hee Lee
Jang-sik Park
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 13 NO. 02 PP. 0471 ~ 0474 (2009. 10) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ÇÚÁîÇÁ¸® ÀüÈÅë½ÅÀ» À§ÇÑ µ¿½ÃÅëÈ(double-talk) ¹× ÀâÀ½¿¡ °°ÇÇÑ ¹ÝÇâÁ¦°Å ½Ã½ºÅÛÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ¹ÝÇâÁ¦°Å ½Ã½ºÅÛÀº µ¿½ÃÅëÈ »óȲÀ» ÆǺ°Çϱâ À§ÇØ ¸¶ÀÌÅ© ÀԷ½ÅÈ£¿Í ÃßÁ¤ÇÑ ¸¶ÀÌÅ© ÀԷ½ÅÈ£ÀÇ ºÐ»êÀ» ±â¹ÝÀ¸·Î ÇÑ µ¿½ÃÅëÈ °ËÃâ ¾Ë°í¸®ÁòÀ» »ç¿ëÇÏ°í ¹ÝÇâ °æ·Î ÃßÁ¤À» À§ÇÑ ÀûÀÀ ÇÊÅÍ´Â ÀÜ¿©¹ÝÇâ ¿ÀÂ÷ Àü·Â°ú AP ¾Ë°í¸®ÁòÀÇ Åõ¿µÂ÷¼ö¸¦ °öÇÏ¿© ÀÔ·Â ½ÅÈ£ÀÇ ÀÚ±â°øºÐ»ê Çà·Ä¿¡ ´õÇØ Á¤±ÔȽÃŲ ¾Ë°í¸®ÁòÀ» Àû¿ëÇÑ´Ù. ÄÄÇ»ÅÍ ½Ã¹Ä·¹À̼ÇÀ» ÅëÇÑ µ¿½ÃÅëÈ ¹× ÁÖº¯ ÀâÀ½ÀÌ Å« ÇÚÁîÇÁ¸® ȯ°æ¿¡¼ Á¦¾ÈÇÏ´Â ¹æ¹ýÀÌ AIC(acoustic interference cancellation) Ãø¸é¿¡¼ ¿ì¼öÇÔÀ» º¸ÀδÙ.
|
¿µ¹®³»¿ë (English Abstract) |
In this paper, we propose a double talk and noise robust acoustic echo canceler for hands-free telephony applications. The proposed system includes a double-talk detection method that detects the double-talk durations, which uses covariance between microphone input signa and estimated microphone input signal. And proposed adaptive algorithm for estimating acoustic echo path, uses normalized auto-covariance matrix of input signal with multiplication of residual error power and projection order of AP(affine projeciton) algorithm. It is confirmed that the proposed algorithm shows better performance from acoustic interference cancellation (AIC) viewpoint in double talk and noisy environments.
|
Å°¿öµå(Keyword) |
µ¿½ÃÅëÈ °ËÃâ
À½Çâ ¹ÝÇâ Á¦°Å
»óÈ£»ó°ü °è¼ö
AIC(acoustic interference cancellation)
|
ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
|