AES E-Library

AES E-Library

Sound directivity control using striped panel loudspeaker

Document Thumbnail

The sound radiation properties of a striped panel loudspeaker are modified in this study. The panel loudspeaker is based on Electromechanical film (EMFi) and consists of 14 individual sound radiating areas in form of narrow stripes. Each stripe can be driven individually so that the panel radiation pattern can be modified and it can be used as a directivity-controlled sound source in audio applications. The performance of the panel was analyzed using an acoustical boundary element method (BEM) model. For real-time directivity control, an algorithm was developed to process the input signals to gain appropriate radiation patterns. The measurements carried out in anechoic conditions were used to verify that the striped EMFi panel operates according to the simulations and that it produces the desired directivity pattern.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member 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 $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society