Title :
Design the correction factors to improve the perfrmance of G.729B voice activity detector
Author :
Farsi, Hassan ; Mozaffarian, Mohammad Amin
Author_Institution :
Dept. of Electr. Eng., Univ. of Birjand, Birjand, Iran
Abstract :
Discontinuous transmission based on speech/pause detection represents a valid solution to improve the spectral efficiency of new-generation wireless communication systems. One of the modern standards that used in speech processing systems as voice activity detector (VAD) is ITU-T G.729B. In this paper, we try to improve the performance of this standard in low SNRs by minimum changes. This modification continued by new coefficients named correction factors. We compare the results of our proposed method in various types of noises by other standards.
Keywords :
radio networks; signal detection; speech processing; standards; ITU-T G.729B VAD; SNR; correction factor; discontinuous transmission; new-generation wireless communication system; spectral efficiency; speech processing system; speech-pause detection; voice activity detector; Bandwidth; Detectors; Light rail systems; Linear predictive coding; Noise shaping; Parametric statistics; Shape measurement; Signal to noise ratio; Speech enhancement; Working environment noise; Correction Factors; Low SNRs; Periodicity Estimation; True Envelope LPC; Voice Activity Detection;
Conference_Titel :
Computer Science and Information Technology, 2009. ICCSIT 2009. 2nd IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4519-6
Electronic_ISBN :
978-1-4244-4520-2
DOI :
10.1109/ICCSIT.2009.5234636
