You are trying to decide between two new stereo amplifiers. One is rated at 120
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per channel.
In terms of
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, how much louder will the more powerful amplifier be when both are producing sound at their maximum levels?
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=
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sound wave
2009-12-10 12:01 pm
回答 (1)
2009-12-10 5:09 pm
✔ 最佳答案
Difference in loudness = 10.log[160/Io] - 10.log[120/Io] dBwhere Io is the threshold of hearing
hence, difference = 10.log[160/120] dB
= 1.25 dB
收錄日期: 2021-04-29 17:36:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091210000051KK00254