Loudspeaker Arrays driven by digital bitstreams are direct digital-signal to acoustic transducers, usually comprising of a digital signal processing module driving actuators. Current research efforts are focusing on topologies directly driven by multi-bit digital bitstreams. In this work, the above investigations are extended to the case of using 1-bit signals such as Sigma-Delta for driving such topologies, using time and frequency domain analysis. Simulation results will be presented for idealized actuators. Finally, an optimized architecture for such a loudspeaker will be proposed, based on this analysis.

Authors: Tatlas, Nicolas-Alexander; Mourjopoulos, John N.
Affiliation: Audiogroup, Electrical Engineering and Computer Engineering Department, University of Patras, Patras, Greece
AES Convention: 116 (May 2004) Paper Number: 6036
Publication Date: May 1, 2004
Session Subject: Signal Processing; Audio in Broadcasting

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.