Title :
Wideband speech codec at 64kb/s using an advanced digital signal processor "DSSP-1"
Author :
Kanayama, Yukiharu ; Ono, Sadayasu
Author_Institution :
NTT Optical Network Systems Laboratories, Japan
Abstract :
A 7 kHz-band speech CODEC using an advanced digital signal processor is developed. The coding algorithm for this CODEC requires greater processing power due to its complexity and high sampling rate. A high-performance digital signal processor VLSI, "DSSP-1", is applied to this CODEC. Arithmetic word-length, arithmetic operation speed, and memory capacity required for this CODEC is evaluated. DSSP-1 can satisfy these requirements; this CODEC has been built with two DSSP-1 chips and several memory chips.
Keywords :
Arithmetic; Decision support systems; Digital signal processing chips; Digital signal processors; Signal processing; Signal processing algorithms; Speech codecs; Speech coding; Very large scale integration; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '86.
DOI :
10.1109/ICASSP.1986.1168621
