Journal Forum

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
1 comment

The Measurement and Calibration of Sound Reproducing Systems - July 2015

Access Journal Forum

AES E-Library

Modeling Nonlinearity of Air with Volterra Kernels for Use in a Parametric Array Loudspeaker

Document Thumbnail

The use of a parametric array in air as a directional audio loudspeaker has been reported in previous literature and the self-demodulation phenomenon is well-understood to seriously distort the generated audible sound as a result of inter-modulation distortion. We propose to model the nonlinear interaction in air using a second-order Volterra kernel at the Rayleigh distance within which sound intensity and parametric conversion efficiency are assumed to be high. Results first obtained from Burgers' equation-based numerical simulations and actual measurements are then used in the nonlinear system identification process.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper 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 $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