...The sensation of having a sound image inside your head, which can easily occur when listening to sound through earphones, is called in-head localization. dbX systemThis is one of the most representative NR systems. It is a compander that compresses the signal level on the input side for all bands and expands and restores it on the output side, with a compression ratio of 1:2 and a noise reduction effect of over 30dB. *Some of the terminology that refers to the "dbX system" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,イアホンで音を聴く場合などに起こりやすい頭のなかに音像があるように感ずることを頭内定位という。 dbX方式dbX system代表的なNRシステムの一つである。全帯域について入力側で信号レベルを圧縮し,出力側で伸長して復元するコンパンダーであり,圧縮比を1:2にとり30dB以上の雑音低減効果がある。… ※「dbX system」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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