Development of an acoustic filter for parametric loudspeaker using phononic crystals

• Published in: Ultrasonics Vol. 67; pp. 160 - 167
• Main Authors: Ji, Peifeng, Hu, Wenlin, Yang, Jun
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.04.2016
• Subjects: Arrays; Beams (radiation); Computer simulation; Crystals; Directivity; Gaussian-beam expansion technique; Loudspeakers; Parametric loudspeaker; Phononic crystals; Sound filters; Spurious sound; Transmission loss; Phononic crystals; Parametric loudspeaker; Gaussian-beam expansion technique; Spurious sound

•An acoustic filter is prototyped in parametric loudspeaker using phononic crystals.•A match of transmission loss is obtained between simulation and experimental results.•A frequency dependence from parametric array effect is detected with proposed filter.•The proposed filter has proved to be effect...