Title :
A New Segment Quantization Using Lempel–Ziv Algorithm and Its Application to Quantization of Line Spectral Frequencies
Author :
Kohata, Minoru ; Suzuki, Motoyuki ; Ito, Akinori ; Makino, Shozo
Author_Institution :
Dept. of Inf. & Network Sci., Chiba Inst. of Technol., Narashino
fDate :
4/1/2007 12:00:00 AM
Abstract :
A new segment quantization method using the Lempel-Ziv algorithm is proposed, and it is applied to quantize line spectral frequency parameters in speech codec. The proposed segment quantizer can save four bits per frame, compared with the ITU-T G.729 speech codec (18 bits/frame), without degradation of subjective or objective speech quality
Keywords :
speech codecs; speech coding; Lempel-Ziv algorithm; line spectral frequencies quantization; segment quantization; speech codec; speech quality; Acoustic distortion; Bit rate; Frequency; Indium tin oxide; Parametric statistics; Signal processing algorithms; Speech codecs; Speech coding; Speech processing; Vector quantization; Lempel–Ziv (LZ) coding; segment quantization (SQ); speech coding; vector quantization (VQ);
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2007.894090
