IEICE TRANSACTIONS on Communications
Voice Activity Detection and Transmission Error Control for Digital Cordless Telephone System
Summary :
Personal Handy Phone (PHP), the Japanese digital cordless telephone system is being developed. The 32kbits/s ADPCM (Adaptive Differential Pulse Code Modulation) codec has been standardized for PHP. This paper describes firstly, the advanced algorithms of a Voice Activity Detection (VAD) function that reduces power dissipation of a digital cordless telephone terminal, secondly, a comfort noise generator operates in conjunction with the VAD and finally, a transmission error control based on the use of the prediction coefficients generated in the ADPCM codec. These proposed algorithms function in the low signal-to-noise ratio (SNR) environment of personal radio communications. The quality of the reconstructed speech after the process is influenced by the VAD decision errors (false detection when no voice is present, or no detection when voice is present) , the similarity of the generated comfort noise to the actual background noise, and the transmission quality. The simulation results of the performance achieved by these algorithms are shown and required loading of the computation are also given.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E77-B No.7 pp.948-955
- Publication Date
- 1994/07/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
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Seishi SASAKI, Ichiro MATSUMOTO, Osamu WATANABE, Kenzo URABE, "Voice Activity Detection and Transmission Error Control for Digital Cordless Telephone System" in IEICE TRANSACTIONS on Communications,
vol. E77-B, no. 7, pp. 948-955, July 1994, doi: .
Abstract: Personal Handy Phone (PHP), the Japanese digital cordless telephone system is being developed. The 32kbits/s ADPCM (Adaptive Differential Pulse Code Modulation) codec has been standardized for PHP. This paper describes firstly, the advanced algorithms of a Voice Activity Detection (VAD) function that reduces power dissipation of a digital cordless telephone terminal, secondly, a comfort noise generator operates in conjunction with the VAD and finally, a transmission error control based on the use of the prediction coefficients generated in the ADPCM codec. These proposed algorithms function in the low signal-to-noise ratio (SNR) environment of personal radio communications. The quality of the reconstructed speech after the process is influenced by the VAD decision errors (false detection when no voice is present, or no detection when voice is present) , the similarity of the generated comfort noise to the actual background noise, and the transmission quality. The simulation results of the performance achieved by these algorithms are shown and required loading of the computation are also given.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e77-b_7_948/_p
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@ARTICLE{e77-b_7_948,
author={Seishi SASAKI, Ichiro MATSUMOTO, Osamu WATANABE, Kenzo URABE, },
journal={IEICE TRANSACTIONS on Communications},
title={Voice Activity Detection and Transmission Error Control for Digital Cordless Telephone System},
year={1994},
volume={E77-B},
number={7},
pages={948-955},
abstract={Personal Handy Phone (PHP), the Japanese digital cordless telephone system is being developed. The 32kbits/s ADPCM (Adaptive Differential Pulse Code Modulation) codec has been standardized for PHP. This paper describes firstly, the advanced algorithms of a Voice Activity Detection (VAD) function that reduces power dissipation of a digital cordless telephone terminal, secondly, a comfort noise generator operates in conjunction with the VAD and finally, a transmission error control based on the use of the prediction coefficients generated in the ADPCM codec. These proposed algorithms function in the low signal-to-noise ratio (SNR) environment of personal radio communications. The quality of the reconstructed speech after the process is influenced by the VAD decision errors (false detection when no voice is present, or no detection when voice is present) , the similarity of the generated comfort noise to the actual background noise, and the transmission quality. The simulation results of the performance achieved by these algorithms are shown and required loading of the computation are also given.},
keywords={},
doi={},
ISSN={},
month={July},}
Copy
TY - JOUR
TI - Voice Activity Detection and Transmission Error Control for Digital Cordless Telephone System
T2 - IEICE TRANSACTIONS on Communications
SP - 948
EP - 955
AU - Seishi SASAKI
AU - Ichiro MATSUMOTO
AU - Osamu WATANABE
AU - Kenzo URABE
PY - 1994
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E77-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 1994
AB - Personal Handy Phone (PHP), the Japanese digital cordless telephone system is being developed. The 32kbits/s ADPCM (Adaptive Differential Pulse Code Modulation) codec has been standardized for PHP. This paper describes firstly, the advanced algorithms of a Voice Activity Detection (VAD) function that reduces power dissipation of a digital cordless telephone terminal, secondly, a comfort noise generator operates in conjunction with the VAD and finally, a transmission error control based on the use of the prediction coefficients generated in the ADPCM codec. These proposed algorithms function in the low signal-to-noise ratio (SNR) environment of personal radio communications. The quality of the reconstructed speech after the process is influenced by the VAD decision errors (false detection when no voice is present, or no detection when voice is present) , the similarity of the generated comfort noise to the actual background noise, and the transmission quality. The simulation results of the performance achieved by these algorithms are shown and required loading of the computation are also given.
ER -
English
