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Featured researches published by Akira Morita.


IEEE Transactions on Broadcasting | 1987

Subjective Evaluation of Multi-Channel Stereophony for HDTV

Kongo Ohgushi; Setsu Komiyama; Kohichi Kurozumi; Akira Morita; Junichi Ujihara; Kiyoshi Tsujimoto

In order to develop sound systems for HDTV, experiments were carried out with seven sound reproduction systems to assess their sensation of reality, sound spaciousness and other qualities. The results suggest that (1) it is desirable to use four sound signals in order to reproduce a better sensation of reality, (2) it is desirable to use three sound signals in front of observers and one sound signal at the rear of observers in order to maintain a better correspondence between the picture direction and the sound localization.


Archive | 2002

Chip microphone and method of making same

Toshifumi Tajima; Toshiyuki Nishiguchi; Nobuo Saito; Akira Morita


Archive | 1989

STEREOPHONIC SOUND REPRODUCING METHOD

Setsu Komiyama; Koichi Kurozumi; Akira Morita; Katsumi Nakabayashi


The Journal of The Acoustical Society of Japan (e) | 1992

Distance control of sound images by a two-dimensional loudspeaker array

Setsu Komiyama; Akira Morita; Kohichi Kurozumi; Katsumi Nakabayashi


Audio Engineering Society Conference: 9th International Conference: Television Sound Today and Tomorrow | 1991

Distance Control System for a Sound Image

Setsu Komiyama; Akira Morita; Kohichi Kurozumi; Katsumi Nakabayashi


Archive | 1999

Microphone system for collecting sound according to separate sound-source integrated with video camera

Shin-ichi Chiba; Masakazu Iwaki; Setsu Komiyama; Akira Morita; Fumio Okano; 晋一 千葉; 摂 小宮山; 文男 岡野; 正和 岩城; 章 盛田


Archive | 2001

Mixing system having function of inspecting microphone line

Shin-ichi Chiba; Masakazu Iwaki; Akira Morita; 晋一 千葉; 正和 岩城; 章 盛田


Journal of The Audio Engineering Society | 2016

Development of Shotgun Microphone with Extra-Long Leaky Acoustic Tube

Yo Sasaki; Toshiyuki Nishiguchi; Kazuho Ono; Takeshi Ishii; Yutaka Chiba; Akira Morita


PROCEEDINGS OF THE ITE CONVENTION PROCEEDINGS OF THE 2003 ITE ANNUAL CONVENTION | 2003

Ultra-small high-performance silicon microphone

Toshifumi Tajima; Toshiyuki Nishiguchi; Nobuo Saito; Kenkichi Tanioka; Shin-ichi Chiba; Akira Morita; Masahide Abe; Masayoshi Esashi


Journal of The Audio Engineering Society | 2000

A Selective Sound Receiving Microphone System Using Blind Source Separation

Masakazu Iwaki; Setsu Komiyama; Akira Morita; Eiichi Miyasaka

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