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An acoustic dual filter in the audio frequencies with two local resonant systems.
- Source :
-
Applied Physics Letters . 8/4/2014, Vol. 105 Issue 5, p1-5. 5p. 4 Diagrams, 1 Chart, 3 Graphs. - Publication Year :
- 2014
-
Abstract
- We report an acoustic dual filter to realize the sound regulation in the audio frequency range, in which resonant vibrations of two membrane-air and metal-elastomer systems generate two sound transmission peaks and a sound blocking below 3000 Hz. The local vibrational profiles manifest that the transmission peak at lower frequency is mainly dependent on the resonant vibration of the membrane-air system, and the coupling vibrations of two systems generate the blocking frequency and transmission peak at higher frequency. Importantly, two transmission peaks can be controlled independently. It is feasible to realize the acoustic device in sound shield and dual filters. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 105
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 97464012
- Full Text :
- https://doi.org/10.1063/1.4892462