Teleconferencing acoustic echo cancellation using adaptive Hammerstein block structure
T. Oezge Oezdin, Rifat Hacioglu, None None
proceeding (Uluslararası, Hakemli) | Yazar(lar): T. Oezge Oezdin, Rifat Hacioglu, None None | Yıl: 2007 | Dergi/Kurum: 2007 IEEE 15TH SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS, VOLS 1-3 | İndeks: WOS.ISTP | DOI: 10.1109/siu.2007.4298711 — Özet: Acoustic echo in voice transmission systems severely degrades the s
Acoustic echo in voice transmission systems severely degrades the speech quality and the speech intelligibility of speech signal due to it is formed through picking up sounds from the loudspeaker by speaker microphone. The dynamic strucure of the acoustic echo system contains cascade connection of an electro-acoustic static nonlinear system and a dynamic linear system. Hence linear models can not be successful solution to echo problem. In this paper, acoustic echo problem is mentioned and an algorithm that adapts the parameters of nonlinear Hammerstein system (cascade connection of a static nonlinearity and a dynamic linear system) is suggested.