Video camera microphone with zoom variable acoustic focus
作者： Lynn D. Dann , Earl E. Rapp
DOI: 10.1121/1.400629
关键词:
摘要: In a video camera having zoom lens and microphone pickup for recording sound associated with the images, acoustic focus (or acceptance angle) of is varied between uni-directional omni-directional in synchronism control order to correlate optical field view optimum coordination picture sound.
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lens.org 参考文章(3)
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Hosoe K, Ogiso M, Itani T, Takahashi K, Camera and microphone combination having a variable directional characteristic in accordance with a zoom lens control ,(1973)