Phon
The phon is a unit of loudness level for pure tones. Its purpose is to compensate for the effect of frequency on the perceived loudness of tones. The phon was proposed in DIN 45631 and ISO 532 B by S. S. Stevens.
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词汇 | phon |
分类 | 英语词汇 英语翻译词典 |
释义 |
phon
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