AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

Practical Implementation of Personal Audio in a Mobile Device

When a loudspeaker of a mobile device is used in a public space, the side effects are the lack of personal privacy and annoying other people. There is, therefore, a need to reduce radiated power while preserving the sound pressure at the listener’s ears. Superdirective beamforming is one approach. A finite-element (FE) model of the two-source line array positioned on the mobile phone-sized baffle is defined and then used to investigate the effect of a finite-sized baffle on the directional pattern of the piston sources. Based on these results, a two-source personal audio system was implemented in real-time, and the results validated the predictions of the FE model. At frequencies where accurate transfer response measurements are achievable, the personal audio system performs as predicted by offline simulations.

Authors:
Affiliations:
JAES Volume 61 Issue 5 pp. 290-300; May 2013
Publication Date:

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:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society