DocumentCode
2654683
Title
Speech-codec detection by spectral harmonic-plus-noise decomposition
Author
Scholz, Kirstin ; Leutelt, Lutz ; Heute, Ulrich
Author_Institution
Inst. for Circuits & Syst. Theor., Kiel Univ., Germany
Volume
2
fYear
2004
fDate
7-10 Nov. 2004
Firstpage
2295
Abstract
This paper presents a new method for speech-codec detection providing reliable information about the perceived quality of a telephone link. Our specific decomposition of the short-time speech-spectrum into a harmonic and a noise component reveals codec-specific distortions of the speech signal. In conjunction with an appropriate classifier, we thus can identify five different codecs with an error rate of less than 8%.
Keywords
harmonic analysis; signal classification; signal detection; speech coding; telephone networks; error rate; short-time speech-spectrum; signal classification; spectral harmonic-plus-noise decomposition; speech signal codec-specific distortions; speech-codec detection; telephone link; Circuits and systems; Noise shaping; Power harmonic filters; Reliability engineering; Shape; Speech analysis; Speech codecs; Speech enhancement; Telephony; World Wide Web;
fLanguage
English
Publisher
ieee
Conference_Titel
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN
0-7803-8622-1
Type
conf
DOI
10.1109/ACSSC.2004.1399577
Filename
1399577
Link To Document