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Title: Low Bandwidth Vocoding using EM Sensor and Acoustic Signal Processing

Low-power EM radar-like sensors have made it possible to measure properties of the human speech production system in real-time, without acoustic interference [1]. By combining these data with the corresponding acoustic signal, we've demonstrated an almost 10-fold bandwidth reduction in speech compression, compared to a standard 2.4 kbps LPC10 protocol used in the STU-III (Secure Terminal Unit, third generation) telephone. This paper describes a potential EM sensor/acoustic based vocoder implementation.
Authors:
; ;
Publication Date:
OSTI Identifier:
15005926
Report Number(s):
UCRL-JC-145934
TRN: US0400241
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Institute of Electrical and Electronics Engineers International Conference on Acoustics, Speech and Signal Processing 2002, Orlando, FL (US), 05/13/2002--05/17/2002; Other Information: PBD: 25 Oct 2001
Research Org:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org:
US Department of Energy (US)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ACOUSTICS; COMPRESSION; ENGINEERS; IMPLEMENTATION; PROCESSING; PRODUCTION; SPEECH