This paper describes a technique for designing a collection of beamformers, a "beamformer bank," that approximately produces a constant-amplitude panning law. Useful in multichannel recording scenarios, a point source will appear with energy above a specified sidelobe level in at most two adjacent beams, and the beam sum will approximate the source signal. A non-parametric design method is described in which a specified sidelobe level determines beam width as a function of arrival direction and frequency, leading directly to the number and placement of beams at every frequency. Simulation results using several microphone array configurations are reported to verify the performance of proposed technique.

Authors: Abel, Jonathan S.; Hur, Yoomi; Park, Young-cheol; Youn, Dae Hee
Affiliations: Stanford University, Stanford, CA, USA; Yonsei University, Seoul, Korea; Yonsei University, Wonju, Korea(See document for exact affiliation information.)
AES Convention: 129 (November 2010) Paper Number: 8280
Publication Date: November 4, 2010
Subject: Spatial Sound Processing

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.