Hiroyuki Ehara

According to our database, Hiroyuki Ehara authored at least 19 papers between 2000 and 2015.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2015

Low bit rate high-quality MDCT audio coding of the 3GPP EVS standard.

Srikanth Nagisetty, Zongxian Liu, Takuya Kawashima, Hiroyuki Ehara, Xuan Zhou, Bin Wang, Zexin Liu, Lei Miao, Jon Gibbs, Lasse Laaksonen, Venkatraman Atti, Vivek Rajendran, Venkatesh Krishnan, Hosang Sung, Kihyun Choo

Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Overview of the EVS codec architecture.

Martin Dietz, Markus Multrus, Vaclav Eksler, Vladimir Malenovsky, Erik Norvell, Harald Pobloth, Lei Miao, Zhe Wang, Lasse Laaksonen, Adriana Vasilache, Yutaka Kamamoto, Kei Kikuiri, Stéphane Ragot, Julien Faure, Hiroyuki Ehara, Vivek Rajendran, Venkatraman Atti, Hosang Sung, Eunmi Oh, Hao Yuan, Changbao Zhu

Proceedings of the 2015 IEEE International Conference on Acoustics, 2015

Super-wideband fine spectrum quantization for low-rate high-quality MDCT coding mode of the 3GPP EVS codec.

Srikanth Nagisetty, Takuya Kawashima, Hiroyuki Ehara, Lasse Laaksonen, Hosang Sung, Kihyun Choo

Proceedings of the 2015 IEEE Global Conference on Signal and Information Processing, 2015

2013

Study and Practice on Information Technology in an Educational Field Using a Cloud Service and SNS.

Ritsuko Watanabe, Hiroyuki Ehara, Eiji Aoki

Proceedings of the Seventh International Conference on Complex, 2013

2011

Low Bit-Rate High-Quality Audio Encoding and Low Complexity Bandwidth Extension Technologies for ITU-T G.718/G.718-SWB.

Tomofumi Yamanashi, Masahiro Oshikiri, Hiroyuki Ehara

Proceedings of IEEE International Conference on Communications, 2011

2008

Decoder Initializing Technique for Improving Frame-Erasure Resilience of a CELP Speech Codec.

Hiroyuki Ehara, Koji Yoshida

IEEE Trans. Multim., 2008

ITU-T EV-VBR: A robust 8-32 kbit/s scalable coder for error prone telecommunications channels.

Tommy Vaillancourt, Milan Jelinek, Ali Erdem Ertan, Jacek Stachurski, Anssi Rämö, Lasse Laaksonen, Jon Gibbs, Udar Mittal, Stefan Bruhn, Volodya Grancharov, Masahiro Oshikiri, Hiroyuki Ehara, Dejun Zhang, Fuwei Ma, David Virette, Stéphane Ragot

Proceedings of the 2008 16th European Signal Processing Conference, 2008

2007

Predictive vector quantization of wideband LSF using narrowband LSF for bandwidth scalable coders.

Hiroyuki Ehara, Toshiyuki Morii, Koji Yoshida

Speech Commun., 2007

An 8-32 kbit/s scalable wideband coder extended with MDCT-based bandwidth extension on top of a 6.8 kbit/s narrowband CELP coder.

Masahiro Oshikiri, Hiroyuki Ehara, Toshiyuki Morii, Tomofumi Yamanashi, Kaoru Satoh, Koji Yoshida

Proceedings of the 8th Annual Conference of the International Speech Communication Association, 2007

ITU-T G.729.1: AN 8-32 Kbit/S Scalable Coder Interoperable with G.729 for Wideband Telephony and Voice Over IP.

Stéphane Ragot, Balázs Kövesi, Romain Trilling, David Virette, Nicolas Duc, Dominique Massaloux, Stéphane Proust, Bernd Geiser, Martin Gartner, Stefan Schandl, Hervé Taddei, Yang Gao, Eyal Shlomot, Hiroyuki Ehara, Koji Yoshida, Tommy Vaillancourt, Redwan Salami, Mi Suk Lee, Do-Young Kim

Proceedings of the IEEE International Conference on Acoustics, 2007

An 8-12 Kbit/S Embedded CELP Coder Interoperable with ITU-T G.729 CIDER: First Stage of the New G.729.1 Standard.

Dominique Massaloux, Romain Trilling, Claude Lamblin, Stéphane Ragot, Hiroyuki Ehara, Mi Suk Lee, Do-Young Kim, Bruno Bessette

Proceedings of the IEEE International Conference on Acoustics, 2007

2005

An energy extrapolation-based concealment algorithm for an erased excitation signal.

Hiroyuki Ehara, Koji Yoshida

IEEE Signal Process. Lett., 2005

Design of bandwidth scalable LSF quantization using interframe and intraframe prediction.

Hiroyuki Ehara, Toshiyuki Morii, Masahiro Oshikiri, Koji Yoshida, Kouichi Honma

Proceedings of the 9th European Conference on Speech Communication and Technology, 2005

Predictive VQ for Bandwidth Scalable LSP Quantization.

Hiroyuki Ehara, Toshiyuki Morii, Masahiro Oshikiri, Koji Yoshida

Proceedings of the 2005 IEEE International Conference on Acoustics, 2005

2004

Design of a Robust LSP Quantizer for a High-Quality 4-kbit/s CELP Speech Coder.

Yusuke Hiwasaki, Kazunori Mano, Kazutoshi Yasunaga, Toshiyuki Morii, Hiroyuki Ehara, Takao Kaneko

IEICE Trans. Inf. Syst., 2004

Noise Post-Processing for Low Bit-Rate CELP Coders.

Hiroyuki Ehara, Kazutoshi Yasunaga, Koji Yoshida, Yusuke Hiwasaki, Kazunori Mano, Takao Kaneko

IEICE Trans. Inf. Syst., 2004

Efficient spectrum coding for super-wideband speech and its application to 7/10/15 kHz bandwidth scalable coders.

Masahiro Oshikiri, Hiroyuki Ehara, Koji Yoshida

Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

2001

A candidate for the ITU-T 4 kbit/s speech coding standard.

Jes Thyssen, Yang Gao, Adil Benyassine, Eyal Shlomot, Carlo Murgia, Huan-yu Su, Kazunori Mano, Yusuke Hiwasaki, Hiroyuki Ehara, Kazutoshi Yasunaga, Claude Lamblin, Balázs Kövesi, Joachim Stegmann, Hong-Goo Kang

Proceedings of the IEEE International Conference on Acoustics, 2001

2000

Dispersed-pulse codebook and its application to a 4 kb/s speech coder.

Kazutoshi Yasunaga, Hiroyuki Ehara, Koji Yoshida, Toshiyuki Morii

Proceedings of the IEEE International Conference on Acoustics, 2000