Abstract
By utilizing the nonlinear acoustic behavior in air, parametric loudspeaker has a unique feature in reproducing high-directivity sound with a small aperture. With our recently developed acoustic filter using phononic crystals to eliminate spurious sound, a preliminary experimental study of parameters' effects on parametric loudspeaker is carried out in this study, including the aperture effect and the sideband effect of the single sideband amplitude modulation (SSB-AM) method to the frequency response of the demodulated difference-frequency sound. Three different apertures are considered, and both the upper SSB-AM and the lower SSB-AM are investigated, which helps us to enhance the design of parametric loudspeaker.
| Original language | English |
|---|---|
| Title of host publication | 2016 IEEE International Ultrasonics Symposium, IUS 2016 |
| Publisher | IEEE Computer Society |
| ISBN (Electronic) | 9781467398978 |
| DOIs | |
| Publication status | Published - Nov 1 2016 |
| Externally published | Yes |
| Event | 2016 IEEE International Ultrasonics Symposium, IUS 2016 - Tours, France Duration: Sept 18 2016 → Sept 21 2016 |
Publication series
| Name | IEEE International Ultrasonics Symposium, IUS |
|---|---|
| Volume | 2016-November |
| ISSN (Print) | 1948-5719 |
| ISSN (Electronic) | 1948-5727 |
Conference
| Conference | 2016 IEEE International Ultrasonics Symposium, IUS 2016 |
|---|---|
| Country/Territory | France |
| City | Tours |
| Period | 9/18/16 → 9/21/16 |
Bibliographical note
Publisher Copyright:© 2016 IEEE.
ASJC Scopus Subject Areas
- Acoustics and Ultrasonics
Keywords
- Difference-frequency sound
- Gaussian-beam expansion technique
- Parametric loudspeaker
- Phononic crystals
- Spurious sound