voltage-ratio box 中文意思是什麼

voltage-ratio box 解釋
電壓比盒
  • voltage : n. 【電學】電壓，電壓量，伏特數。 the working voltage （電氣的）耐壓限度。
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  • box : n 1 箱，櫃，匣，盒；罩殼；錢櫃；〈美口〉保險箱；郵箱，信箱；〈英國〉禮盒；禮物（旅行用）衣箱。2 ...
  1. Again call the the ratio, namely the electric voltage of the enlarger s exportation signal with at the same time output s voice ratio for electric voltage, usually use the decibel number to mean. the equipments s letter the ratio is more our output of high enunciation is more little. by any large, letter the ratio is more big, and the elucidation is in the in the signal a the quantity for more smallly, voice returning putting is more high, otherwise contrary. letter the ratio should be generally not lower than 70 dbs, high the letter of the true box the ratio should attain 110 dbs are above

    又稱為訊噪比，即放大器的輸出信號的電壓與同時輸出的噪聲電壓的比，常常用分貝數表示。設備的信噪比越高表明它產生的雜音越少。一般來說，信噪比越大，說明混在信號里的噪聲越小，聲音回放的音質量越高，否則相反。
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