Paper Info
Title
An 64-80-96 kbit/s scalable wideband speech coding candidate for ITU-T G.711-WB standardization
Abstract
This article presents a bitrate- and bandwidth-scalable coder submitted as a candidate to the qualification phase of ITU-T embedded G.711 wideband (G.711-WB) standardization. The encoder operates on 5 ms frames and bitrate can be set on a frame basis at either 64, 80 or 96 kbit/s. The input signal, which is by default sampled at 16 kHz, is split in two bands. The low band (0-4000 Hz) is coded by a low-complexity embedded Pulse Code Modulation (PCM) coder at 8-10 bits/sample, including noise feedback at the encoder and PCM-specific post-filtering at the decoder. The high-band (4000-8000 Hz) is coded by a time-domain aliasing cancellation (TDAC) coder derived from ITU-T G.729. 1. Frame emsures are concealed using a low-complexity split-band algorithm derived from ITU-T G.722 Appendix IV. The proposed coder passed all requirements of the G.711WB qualification phase. We summarize and discuss formal ITU-T test results.
Year
DOI
Venue
2008
10.1109/ICASSP.2008.4518731
ICASSP
Keywords
Field
DocType
code standards,computational complexity,pulse code modulation,speech coding,standardisation,ITU-T G.711-WB standardization,bandwidth-scalable coder,bit rate 64 kbit/s,bit rate 80 kbit/s,bit rate 96 kbit/s,bitrate-scalable coder,low-complexity embedded pulse code modulation,low-complexity split-band algorithm,scalable wideband speech coding,time-domain aliasing cancellation coder,G.711,ITU,Speech coding,standardization
Speech coding,Dictionary coder,Computer science,Artificial intelligence,Computer hardware,Wideband,Pulse-code modulation,Pattern recognition,Speech recognition,Aliasing,Encoder,Computational complexity theory,Scalability
Conference
ISSN
Citations 
PageRank 
1520-6149
2
0.60
References 
Authors
2
3
Name
Order
Citations
PageRank
Balázs Kövesi1579.57
Stéphane Ragot2739.92
Alain Le Guyader3124.22