Molding of a passive sound-proof ear piece
Traditional earplugs block noise by sealing off the ear canal when inserted. Although this reduces the overall quantity of noise, it also causes its quality to deteriorate as well. This is due to uneven attenuation across the entire frequency range where certain frequencies are attenuated more than...
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| 格式: | Final Year Project |
| 語言: | English |
| 出版: |
2016
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| 在線閱讀: | http://hdl.handle.net/10356/67124 |
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| 機構: | Nanyang Technological University |
| 語言: | English |