Wave propagation theory relevant to array design is summarised. Broad-fire and End-fire array types are considered with regard to array element directivity and point source behaviour in particular. Factors including the aperture limit, spatial aliasing, truncation effects and driver directivity control techniques are considered and strategies summarised. A novel approach to driver design allowing flexible control over directivity at manufacture is then explored and a prototype reported on. It is verified that the aperture limit can be exceeded. The implications for array design and reciprocal capture approaches are considered. Patent applications apply to aspects of this work.

Author: Huon, Graeme
Affiliation: HuonLabs Pty. Ltd., Melbourne, Australia
AES Conference: 52nd International Conference: Sound Field Control - Engineering and Perception (September 2013)
Paper Number: 2-3
Publication Date: September 2, 2013
Subject: Spatial Field Control Theory and Applications

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.