Title :
Design of a sub-band coder for low-bit rate using fixed and variable band coding schemes
Author_Institution :
Univ. of West Indies, St. Augustine
Abstract :
This paper presents a noninteger sampling method for sub-band coding that exploits the advantages of modifying the centre frequency of the sub-bands according to the dynamic movement of the vocal tract, The above method uses fixed or variable bandwidths, and is based on a new linear phase bandpass filter with a variable cut-off frequency
Keywords :
band-pass filters; delay circuits; encoding; signal sampling; fixed band coding schemes; linear phase bandpass filter; low-bit rate; noninteger sampling method; sub-band coder; variable band coding schemes; variable cut-off frequency; vocal tract; Band pass filters; Bandwidth; Cutoff frequency; Decoding; Delay; Finite impulse response filter; Hardware; Mirrors; Sampling methods; Speech coding;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1994. IECON '94., 20th International Conference on
Conference_Location :
Bologna
Print_ISBN :
0-7803-1328-3
DOI :
10.1109/IECON.1994.398108
