Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Kohei Iseda"'
Autor:
Nobuhito Ohte, Naoko Tokuchi, Izuki Endo, Natsuko I. Kobayashi, Mizue Ohashi, Masashi Murakami, Kohei Iseda, Atsushi Hirose, Keitaro Tanoi
Publikováno v:
Journal of Environmental Radioactivity. 149:176-185
Since the Fukushima Dai-ichi Nuclear Power Plant accident in March 2011, large areas of the forests around Fukushima have become highly contaminated by radioactive nuclides. To predict the future dynamics of radioactive cesium ((137)Cs) in the forest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d93b04506ef85bdaee39eb1d945244f
https://doi.org/10.1016/j.jenvrad.2015.07.027
https://doi.org/10.1016/j.jenvrad.2015.07.027
Autor:
Takahiro Suzuki, Kohei Iseda, Masashi Murakami, Nobuyoshi Ishii, Nobuhito Ohte, Keitaro Tanoi
Publikováno v:
Agricultural Implications of the Fukushima Nuclear Accident ISBN: 9784431543275
A massive amount of radioactive substances, including cesium-137 (137Cs), emitted from the disabled nuclear power plant has deposited on the forested areas in the northeastern region of Honshu Island, Japan after the Fukushima Daiichi nuclear power p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::143aeb9491e4cf5157a7da169df418c3
https://doi.org/10.1007/978-4-431-54328-2_16
https://doi.org/10.1007/978-4-431-54328-2_16
Publikováno v:
ICASSP
This paper describes an implementation of a new 16 kbps speech codec using commercially available DSPs and its performance. The coding algorithm chosen here is ADPCM with Multi-Quantizer (ADPCM-MQ) which selects the optimum ADPCM coder frame by frame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d125243e9f4666493fcb9af31027e9f5
https://doi.org/10.1109/icassp.1987.1169513
https://doi.org/10.1109/icassp.1987.1169513
Publikováno v:
ICASSP
Adaptive differential PCM (ADPCM) is an effective coding scheme to simplify the hardware and shorten the processing delay to realize a high-efficiency speech codec. The ADPCM with Multi-Quantizer (ADPCM-MQ) coding has been proposed as one of the high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b1432ac17e95b39c4604916c4cbbc96
https://doi.org/10.1109/icassp.1986.1169248
https://doi.org/10.1109/icassp.1986.1169248
Publikováno v:
IEEE Global Telecommunications Conference and Exhibition. Communications for the Information Age.
Discusses an implementation of an experimental variable bit rate codec (VRC) based on adaptive differential pulse code modulation with a multiquantizer (ADPCM-MQ) that processes speech signals at 16 kb/s to 48 kb/s. The authors propose a method for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4118b065781555ff0d4b34cac78e0e4
https://doi.org/10.1109/glocom.1988.26001
https://doi.org/10.1109/glocom.1988.26001
Publikováno v:
ICASSP
A new 8 kbps speech coding algorithm called TC-MQ (time domain compression ADPCM-MQ) is proposed. It is based on time scale modification and sub-band coding with the aid of ADPCM with a multiquantizer. For time scale modification, the decimation/inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0093a25b56a0fa604c6b101cc83a005
https://doi.org/10.1109/icassp.1988.196564
https://doi.org/10.1109/icassp.1988.196564
Autor:
Shigeyuki Unagami, Kohei Iseda, Koji Okazaki, Fumio Amano, Yoshinori Tanaka, Tomohiko Taniguchi, Yasuji Ohta
Publikováno v:
The Journal of the Acoustical Society of America. 94:3537-3537
Several encoders perform a local decoding of a speech signal and extract excitation information and vocal tract information from a speech signal for an encoding operation. The transmission rate ratio between the excitation information and the vocal t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ffe709d783abb426fdcc161ae315c61
https://doi.org/10.1121/1.407127
https://doi.org/10.1121/1.407127
Publikováno v:
The Journal of the Acoustical Society of America. 94:3040-3040
Disclosed is a voice coding/decoding system having a transmitting part for transmitting a coded signal of an input voice signal at a bit rate lower than a predetermined transmission bit rate and a receiving part for receiving and decoding the coded s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b764dda08552eea58b6dce342a5548d
https://doi.org/10.1121/1.408228
https://doi.org/10.1121/1.408228
Publikováno v:
The Journal of the Acoustical Society of America. 94:1181-1181
A voice detection apparatus comprises a signal power calculation part (11) for calculating a signal power of an input voice signal for each frame of the input voice signal, a zero crossing counting part (12) for counting a number of polarity inversio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a5c58cb06c691e9ca1465d1a67d41cd
https://doi.org/10.1121/1.406908
https://doi.org/10.1121/1.406908
Publikováno v:
IEEE Journal on Selected Areas in Communications. 6:410-424
A speech coding algorithm with low complexity and a short processing delay is introduced. The proposed algorithm is ADPCM (adaptive digital pulse code modulation) with a multiquantizer (ADPCM-MQ). The input signal is processed in parallel by multiple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e44e76f35a24946e0777b532728956e
https://doi.org/10.1109/49.616
https://doi.org/10.1109/49.616