Spectrum Correction of Acoustic Horns by Cross-Sectional Area Modification
碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === Abstract Acoustic horns usually are used to increase the directivity of the acoustic field, or to adjust the natural frequencies of the instruments to which they are attached. The quality of all acoustic horns, however, depends upon their acoustic impedance...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/09064097282580629696 |