...In the case of record players, measures are taken to keep them away from the speakers or to place anti-vibration equipment under the player to insulate it from vibrations from the floor. Hum noiseNoise that is the output of commercial power frequency components or their harmonic components. It can be caused by electromagnetic induction or by insufficient smoothing capacity of the power supply's rectifier circuit. *Some terminology explanations that mention "hum noise" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…レコードプレーヤーの場合は,スピーカーから離したり,プレーヤーの下に床からの振動を絶縁する防振器具をおく対策がとられている。 ハム雑音hum noise商用電源周波数成分,またはその高調波成分が出力からでてくる雑音。電磁誘導によるものと電源の整流回路の平滑能力不足によるものとがある。… ※「hum noise」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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