Hiroyuki Ehara

20 papers A 2Misc 6Journal 5Unranked 7

Year	Rank	Type	Title / Venue / Authors
2025	Misc	`conf`	3GPP IVAS Codec - Perspectives on Development, Testing and Standardization. ICASSP Stefan Bruhn, Tomas Toftgård, S. Döhla, H.-Y. Su, L. Laaksonen, T. Moriya, Stéphane Ragot, Hiroyuki Ehara, M. Szczerba, Imre Varga, A. Schevciw, Milan Jelinek
2015	Misc	`conf`	Low bit rate high-quality MDCT audio coding of the 3GPP EVS standard. ICASSP 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
2015	Misc	`conf`	Overview of the EVS codec architecture. ICASSP 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
2015	—	`conf`	Super-wideband fine spectrum quantization for low-rate high-quality MDCT coding mode of the 3GPP EVS codec. GlobalSIP Srikanth Nagisetty, Takuya Kawashima, Hiroyuki Ehara, Lasse Laaksonen, Hosang Sung, Kihyun Choo
2013	Misc	`conf`	Study and Practice on Information Technology in an Educational Field Using a Cloud Service and SNS. CISIS Ritsuko Watanabe, Hiroyuki Ehara, Eiji Aoki
2011	—	`conf`	Low Bit-Rate High-Quality Audio Encoding and Low Complexity Bandwidth Extension Technologies for ITU-T G.718/G.718-SWB. ICC Tomofumi Yamanashi, Masahiro Oshikiri, Hiroyuki Ehara
2008	J	`jnl`	Decoder Initializing Technique for Improving Frame-Erasure Resilience of a CELP Speech Codec. IEEE Trans. Multim. Hiroyuki Ehara, Koji Yoshida
2008	—	`conf`	ITU-T EV-VBR: A robust 8-32 kbit/s scalable coder for error prone telecommunications channels. EUSIPCO 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
2007	—	`conf`	An 8-12 Kbit/S Embedded CELP Coder Interoperable with ITU-T G.729 CIDER: First Stage of the New G.729.1 Standard. ICASSP (4) Dominique Massaloux, Romain Trilling, Claude Lamblin, Stéphane Ragot, Hiroyuki Ehara, Mi Suk Lee, Do-Young Kim, Bruno Bessette
2007	A	`conf`	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. INTERSPEECH Masahiro Oshikiri, Hiroyuki Ehara, Toshiyuki Morii, Tomofumi Yamanashi, Kaoru Satoh, Koji Yoshida
2007	—	`conf`	ITU-T G.729.1: AN 8-32 Kbit/S Scalable Coder Interoperable with G.729 for Wideband Telephony and Voice Over IP. ICASSP (4) 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
2007	J	`jnl`	Predictive vector quantization of wideband LSF using narrowband LSF for bandwidth scalable coders. Speech Commun. Hiroyuki Ehara, Toshiyuki Morii, Koji Yoshida
2005	J	`jnl`	An energy extrapolation-based concealment algorithm for an erased excitation signal. IEEE Signal Process. Lett. Hiroyuki Ehara, Koji Yoshida
2005	A	`conf`	Design of bandwidth scalable LSF quantization using interframe and intraframe prediction. INTERSPEECH Hiroyuki Ehara, Toshiyuki Morii, Masahiro Oshikiri, Koji Yoshida, Kouichi Honma
2005	—	`conf`	Predictive VQ for Bandwidth Scalable LSP Quantization. ICASSP (1) Hiroyuki Ehara, Toshiyuki Morii, Masahiro Oshikiri, Koji Yoshida
2004	J	`jnl`	Design of a Robust LSP Quantizer for a High-Quality 4-kbit/s CELP Speech Coder. IEICE Trans. Inf. Syst. Yusuke Hiwasaki, Kazunori Mano, Kazutoshi Yasunaga, Toshiyuki Morii, Hiroyuki Ehara, Takao Kaneko
2004	—	`conf`	Efficient spectrum coding for super-wideband speech and its application to 7/10/15 kHz bandwidth scalable coders. ICASSP (1) Masahiro Oshikiri, Hiroyuki Ehara, Koji Yoshida
2004	J	`jnl`	Noise Post-Processing for Low Bit-Rate CELP Coders. IEICE Trans. Inf. Syst. Hiroyuki Ehara, Kazutoshi Yasunaga, Koji Yoshida, Yusuke Hiwasaki, Kazunori Mano, Takao Kaneko
2001	Misc	`conf`	A candidate for the ITU-T 4 kbit/s speech coding standard. ICASSP 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
2000	Misc	`conf`	Dispersed-pulse codebook and its application to a 4 kb/s speech coder. ICASSP Kazutoshi Yasunaga, Hiroyuki Ehara, Koji Yoshida, Toshiyuki Morii