A shotgun microphone having sharper directivity than a conventional microphone has been studied to capture distant sound clearly. The directivity of the shotgun microphone is known to become sharper with a longer leaky acoustic tube. Thus, we developed a prototype microphone that uses a 1-m-long leaky acoustic tube, which is longer than the conventional one. We also conducted a numerical simulation based on an acoustical distribution constant circuit to develop such a shotgun microphone. The measurement results of the prototype microphone were in fairly good agreement with the simulation results, and they showed that the directivity is very narrow.

Authors: Sasaki, Yo; Nishiguchi, Toshiyuki; Ono, Kazuho; Ishii, Takeshi; Chiba, Yutaka; Morita, Akira
Affiliations: NHK Science & Technology Research Laboratories, Kinuta, Setagaya-ku, Tokyo, Japan; Sanken Microphone Co. Ltd., Tokyo, Japan(See document for exact affiliation information.)
AES Convention: 141 (September 2016) Paper Number: 9639
Publication Date: September 20, 2016 Import into BibTeX
Subject: Applications in Audio
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=18443

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:   /conv/141/9639.pdf

Start a discussion about this paper!