Title :
A computational efficient method for bandwidth extension of a conference phone
Author :
Lindstr?¶m, F. ; Dahl, M. ; Claesson, I.
Author_Institution :
Res. & Dev., Konftel Technol. AB, Umea, Sweden
Abstract :
This paper presents a computational efficient method for extension of the bandwidth of a conference phone. The virtue of the proposed method is that it allows an improvement in quality, i.e. increased bandwidth, at virtually no extra computational cost. Frequency analysis in combination with subjective tests showed that the proposed method extends the bandwidth without introducing any artifacts.
Keywords :
loudspeakers; speech processing; teleconferencing; telephone sets; bandwidth extension; computational efficient method; conference phone; frequency analysis; loudspeaker spectrograms; subjective tests; Attenuation; Bandwidth; Computational efficiency; Frequency; ISDN; Loudspeakers; Real time systems; Signal processing; Speech; Testing;
Conference_Titel :
Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on
Print_ISBN :
0-7803-7721-4
DOI :
10.1109/ICCE.2003.1218909
