AES E-Library

Performance Analysis of Digital Loudspeaker Arrays

An analysis of digital loudspeaker arrays shows that the ways in which bits are mapped to the drivers influence the quality of the audio result. Specifically, a “bit-summed” rather than the traditional “bit-mapped” strategy greatly reduces the number of times drivers make binary transitions per period of the input frequency. Detailed simulations compare the results for a 32-loudspeaker array with a similar configuration with analog excitation of the drivers. Ideally, drivers in digital arrays should be very small and span a small area, but that sets limits on the low-frequency response.

Authors: Pedersen, Bo Rohde; Kontomichos, Fotios; Mourjopoulos, John
Affiliations: Department of Software and Electronics, Aalborg University, Esbjerg Denmark; Audio and Acoustic Technology Group, Wire Communications Laboratory, Electrical Engineering and Computer Engineering Department, University of Patras, Patras, 26500 Greece(See document for exact affiliation information.)
JAES Volume 56 Issue 9 pp. 667-683; September 2008 Import into BibTeX

Click to purchase paper or login as an AES member. If your company or school subscribes to the AES Journal then you can look for this paper in the institutional version of the Online Journal. 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 JAES56)   /jaes56/9/pg667.pdf

Start a discussion about this paper!