Design of Parametric Loudspeaker and Receiver System

Zi Yu Chen; Xin Wei Zhang

doi:10.4028/www.scientific.net/AMR.909.222

Paper Titles

Automatic Lubrication System for Minimizing Friction of Driving Parts for Large-Sized Commercial Vehicle
p.198

HXD₃/HXD_3C Electric Locomotive's Potential Transformer Fault Analysis and Countermeasures
p.204

Design of Multifunction GPS/GPRS Vehicle Terminal
p.210

Development of Virtual Repair Training System of Transmission
p.216

Design of Parametric Loudspeaker and Receiver System
p.222

A Novel Coordination and Control Approach for Manufacturing System
p.231

Multistage Inventory Control Research of Engineering Ships' Spare Parts
p.236

Research on Automatic Leveling System of Railway Rescue Crane
p.241

Remote Monitoring and Control System for Electrical Haulage Shearer
p.247

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 909Design of Parametric Loudspeaker and Receiver...

Design of Parametric Loudspeaker and Receiver System

Abstract:

Parametric loudspeaker systems have been widely used for projecting highly directional audible sound to a specified area. However, the demodulated signal from parametric loudspeaker suffers from high distortion since the nonlinear interaction among primary waves also generate harmonics. In order to reduce distortion, signal acquisition and digital signal processing techniques can be applied at the receiver. In this paper, a parametric loudspeaker and receiver system is designed to reduce distortion using median filtering and mean filtering at the receiver. Compared to conventional systems, the demodulated signal using proposed techniques exhibits lower distortion.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 909)

Pages:

222-227

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.909.222

Citation:

Cite this paper

Online since:

March 2014

Authors:

Zi Yu Chen*, Xin Wei Zhang

Keywords:

Directional Sound, Distortion Reduction, Parametric Loudspeaker

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] P.J. Westervelt: Parametric acoustic array, J. Acoust. Soc. Am. Vol. 35(1963), p.535–537.

Google Scholar

[2] C. Shi, and W. Gan: Development of Parametric Loudspeaker, Potentials, IEEE Vol. 29(2010), pp.20-24.

Google Scholar

[3] W. Gan, P. Ji, E.L. Tan, and J. Yang: Distortion analysis and reduction for the parametric array, Audio Engineering Society Convention 124. Audio Engineering Society (2008).

Google Scholar

[4] Tan, E., P. Ji and W. Gan: On preprocessing techniques for band limited parametric loudspeakers, Applied Acoustics Vol. 71(2010), pp.486-492.

DOI: 10.1016/j.apacoust.2009.11.006

Google Scholar

[5] J. James and J.O. Norris: HSS white paper, American Technology Corporation, San Diego, California, USA (2005).

Google Scholar

[6] K.C. Lee and W. Gan: Bandwidth-efficient recursive pth-order equalization for correcting baseband distortion in parametric loudspeakers, Audio, Speech, and Language Processing, IEEE Transactions on Vol. 14(2006), pp.706-710.

DOI: 10.1109/tsa.2005.855830

Google Scholar

[7] Information on http: /en. wikipedia. org/wiki/Median_filter.

Google Scholar

[8] Information on http: /homepages. inf. ed. ac. uk/rbf/HIPR2/mean. htm.

Google Scholar