About KOMORI TOMOYASU
About IMAI ATSUSHI
About SEIYAMA NOBUMASA
About TAKO REIKO
About TAKAGI TOORU
About NHKエンジニアリングシステム
About NHK技研R&D
About elderly person
About background sound
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About Broadcasting in general
About Auditory sense and voice models
About Biometry
About 高齢者
About 番組
About 背景音
About 調整装置