| 2001 | ICASSP | Efficient mixture Gaussian synthesis for decision tree based state tying. | Tsuneo Kato, Shingo Kuroiwa, Tohru Shimizu, Norio Higuchi |
| 2001 | Interspeech | Rapid CODEC adaptation for cellular phone speech recognition. | Masaki Naito, Shingo Kuroiwa, Tsuneo Kato, Tohru Shimizu, Norio Higuchi |
| 2001 | LCN | Voice Quality Evaluation of IP-Based Voice Stream Multiplexing Schemes. | Hideaki Yamada, Norio Higuchi |
| 2000 | Interspeech | A design method of speech corpus for text-to-speech synthesis taking account of prosody. | Hisashi Kawai, Seiichi Yamamoto, Norio Higuchi, Tohru Shimizu |
| 2000 | Interspeech | Determination of threshold for speaker verification using speaker adaptation gain in likelihood during training. | Toshiaki Uchibe, Shingo Kuroiwa, Norio Higuchi |
| 1998 | Interspeech | Recognition of connected digit speech in Japanese collected over the telephone network. | Hisashi Kawai, Norio Higuchi |
| 1997 | ICASSP | Fast and robust joint estimation of vocal tract and voice source parameters. | Wen Ding, Nick Campbell, Norio Higuchi, Hideki Kasuya |
| 1997 | Interspeech | Factors affecting perceived quality and intelligibility in the CHATR concatenative speech synthesiser. | Nick Campbell, Yoshiharu Itoh, Wen Ding, Norio Higuchi |
| 1997 | Interspeech | Use of pitch pattern improvement in the CHATR speech synthesis system. | Ken Fujisawa, Toshio Hirai, Norio Higuchi |
| 1997 | Interspeech | Effect of speaker familiarity and background noise on acoustic features used in speaker identification. | Satoshi Kitagawa, Makoto Hashimoto, Norio Higuchi |
| 1996 | Interspeech | Training data selection for voice conversion using speaker selection and vector field smoothing. | Makoto Hashimoto, Norio Higuchi |
| 1995 | ICASSP | Stochastic modeling of pause insertion using context-free grammar. | Shigeru Fujio, Yoshinori Sagisaka, Norio Higuchi |
| 1995 | Interspeech | Spectral mapping for voice conversion using speaker selection and vector field smoothing. | Makoto Hashimoto, Norio Higuchi |
| 1995 | Interspeech | Analysis of acoustic features affecting speaker identification. | Norio Higuchi, Makoto Hashimoto |
| 1995 | Interspeech | Automatic detection of major phrase boundaries using statistical properties of superpositional F0 control model parameters. | Toshio Hirai, Norio Higuchi, Yoshinori Sagisaka |
| 1995 | Interspeech | Sub-phonemic optimal path search for concatenative speech synthesis. | Yoshiharu Itoh, Makoto Hashimoto, Norio Higuchi |
| 1994 | ICASSP | Development of a text-to-speech system for Japanese based on waveform splicing. | Hisashi Kawai, Norio Higuchi, Tohru Shimizu, Seiichi Yamamoto |
| 1994 | Interspeech | Prediction of prosodic phrase boundaries using stochastic context-free grammar. | Shigeru Fujio, Yoshinori Sagisaka, Norio Higuchi |
| 1994 | Interspeech | A speech and language database for speech translation research. | Tsuyoshi Morimoto, Noriyoshi Uratani, Toshiyuki Takezawa, Osamu Furuse, Yasuhiro Sobashima, Hitoshi Iida, Atsushi Nakamura, Yoshinori Sagisaka, Norio Higuchi, Yasuhiro Yamazaki |
| 1990 | Interspeech | Improvement of the synthetic speech quality of the formant-type speech synthesizer and its subjective evaluation. | Norio Higuchi, Hisashi Kawai, Tohru Shimizu, Seiichi Yamamoto |
| 1990 | Interspeech | The linguistic processing module for Japanese text-to-speech system. | Tohru Shimizu, Norio Higuchi, Hisashi Kawai, Seiichi Yamamoto |
| 1990 | Interspeech | Extension number guidance system. | Fumihiro Yato, Kazuki Katagisi, Norio Higuchi |
| 1986 | ICASSP | Speaker-adpatation methods using selective linear prediction. | Norio Higuchi, Fumihiro Yato |
| 1986 | ICASSP | Speech understanding system using knowledge engineering techniques. | Fumihiro Yato, Tohru Asami, Norio Higuchi |