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Updated: Apr 20, 2026
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Microparticle Manipulation by Standing Surface Acoustic Waves with Dual-frequency Excitations
Published on: August 21, 2018
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3D simulation of an audible ultrasonic electrolarynx using difference waves
1School of Engineering & Applied Science, The George Washington University, Washington, DC, United States of America.
Plos One
|November 18, 2014
Summary
This study presents a novel electrolarynx for post-laryngectomy speech. It utilizes vibro-acoustic interference to create a fundamental frequency, addressing drawbacks of current devices.
Area of Science:
- Medical Devices
- Acoustics
- Speech Therapy
Background:
- Total laryngectomy necessitates alternative speech methods.
- Current vibrating electrolarynxes have limitations like hand use and sound quality.
- Implanted prosthetics are an option but not universally accessible.
Purpose of the Study:
- To introduce a novel electrolarynx design.
- To overcome limitations of existing handheld vibrating electrolarynxes.
- To explore vibro-acoustic interference for speech sound generation.
Main Methods:
- Development of a novel electrolarynx concept.
- Utilizing vibro-acoustic interference of dual ultrasonic waves.
- 3D simulation to demonstrate device principles.
Main Results:
- The proposed device generates an audible fundamental frequency.
- The design aims to reduce sound leakage and free up a hand.
- 3D simulation validates the vibro-acoustic interference principle.
Conclusions:
- The novel electrolarynx shows promise for improved speech rehabilitation.
- This technology could offer a more effective alternative to traditional devices.
- Further development and testing are warranted for clinical application.
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