AES E-Library

A Configurable Microphone Array with Acoustically Transparent Omnidirectional Elements

An acoustically transparent, configurable microphone array with omnidirectional elements, designed for room acoustics analysis and synthesis, and archaeological acoustics applications, is presented. Omnidirectional microphone elements with 2 mm-diameter capsules and 1 mm-diameter wire mounts produce a nearly acoustically transparent array, and provide a simplified mathematical framework for processing measured signals. The wire mounts are fitted onto a 1.6 cm-diameter tube forming the microphone stand, with the microphones arranged above the tube so that acoustic energy can propagate freely across the array. The wire microphone mounts have some flexibility, and the array may be configured. Detachable arms with small speakers are used to estimate the element positions with an accuracy better than the 2 mm microphone diameter.

Authors: Abel, Jonathan S.; Bryan, Nicholas J.; Skare, Travis; Kolar, Miriam; Huang, Patty; Mostowfi, Darius; Smith III, Julius O.
Affiliations: CCRMA, Stanford University, Stanford, CA, USA; Countryman Associates, Inc., Menlo Park, CA, USA(See document for exact affiliation information.)
AES Convention:127 (October 2009) Paper Number:7953 Import into BibTeX
Subject:Arrays

Click to purchase paper 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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 127Papers)   /127/7953.pdf

Start a discussion about this paper!