Near-sound-field propagation based on individual beam-steering for carrier and sideband waves with parametric array loudspeaker

M Nakayama, R Konabe, T Fukumori… - 2016 Asia-Pacific …, 2016 - ieeexplore.ieee.org
It is very important to provide a personal audible space (audio spot) to listeners. Near-sound-
field propagation with a large scale system has been proposed to realize it. In addition, the …

A study on acoustic beam steering with parametric loudspeaker based on individual delay-filtering for carrier and sideband waves

M Nakayama, T Nishiura, R Okuno… - 2014 IEEE Asia Pacific …, 2014 - ieeexplore.ieee.org
Parametric loudspeaker can form an acoustic beam with sharper directivity by using multiple
small ultrasonic transducers. In recent years, acoustic beam steering methods based on …

パラメトリックアレースピーカを用いたキャリア波と複数側帯波の独立遅延制御による近距離音響再生

小辺亮介, 生藤大典, 福森隆寛, 中山雅人… - … 情報通信学会論文誌 A, 2016 - search.ieice.org
パラメトリックスピーカは超指向性を有し, 特定のエリアや人物のみに音波を伝播可能である.
パラメトリックスピーカから放射する変調した超音波 (振幅変調波) にはキャリア波と側帯波が存在し …