A Surface Vibration Electromagnetic Speech Sensor
Abstract
Abstract-As researchers continue to improve speech in noisy II environments, more interest is being placed on sensors with modalities that can be fused with traditional acoustic sensors. The standard literature has shown that electromagnetic sensors can be used to detect glottal motion. Also, accelerometers placed on the throat and nasal areas have been used to detect skin surface vibrations corresponding to speech and that data has II been used for noise reduction. The Georgia Tech Research Institute (GTRI) is transitioning a 24 GHz radar technology originally used for non-contact vital signs monitoring to a technology able to measure surface motion on the order of 1< microns, which can detect skin surface vibrations corresponding to speech. The radar has been shown to measure the same motion as accelerometers using electromagnetic waves. This paper describes the theory and preliminary work in developing a d surface vibration electromagnetic speech sensor to be used for noise reduction in conjunction with acoustic sensors.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 12, 2002
- Accession Number
- ADP014016
Entities
People
- Eugene F. Greneker
- Ittichote Chuckpaiwong
- Jonathan L. Geisheimer
- Scott A. Billington
Organizations
- Georgia Tech Research Corporation