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Updated: Apr 15, 2026

Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
Published on: December 2, 2011
An acoustic filter based on layered structure
Jianguo Ma, Michael B Steer1, Xiaoning Jiang2
1Department of Electrical and Computer Engineering, North Carolina State University , Raleigh, North Carolina 27695, USA.
Abstract:
Acoustic filters (AFs) are key components to control wave propagation in multi-frequency systems. We present a design which selectively achieves acoustic filtering with a stop band and passive amplification at the high- and low-frequencies, respectively. Measurement results from the prototypes closely match the design predictions. The AF suppresses the high frequency aliasing echo by 14.5 dB and amplifies the low frequency transmission by 8.0 dB, increasing an axial resolution from 416 to 86 μm in imaging. The AF design approach is proved to be effective in multi-frequency systems.
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