...The Dolby method has the advantage that the breathing phenomenon of noise is difficult to detect, but it is necessary to set the correct levels during compression and expansion. HowlingThis is the phenomenon in which the sound emitted from a speaker is picked up by a microphone or a record player pickup, amplified, and oscillated. To prevent howling, it is effective to use a directional microphone to move closer to the sound source, to make the speaker more directional so that the sound from the speaker is less likely to reach the microphone, or to make the room sound-absorbing. ... *Some of the terminology explanations that mention "howling" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ドルビー方式は雑音の息づき現象が検知されにくい長所をもつが,圧縮時と伸長時の正しいレベル設定が必要である。 ハウリングhowlingスピーカーから出た音が,マイクやレコードプレーヤーのピックアップなどに拾われて増幅されて発振する現象をいう。ハウリングを防ぐには,指向性マイクを使って音源に近づけたり,スピーカーに指向性をつけてマイクにスピーカーからの音が入りにくくしたり,部屋を吸音性にすると効果がある。… ※「howling」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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