Title
An assessment of speech related information contained in GEMS signals
Abstract
As the essence of communication speech intelligibility, rather than more general speech quality, can be of paramount importance when communications systems operate in high noise environments. This paper considers applications where the acoustic signal is degraded by noise so as to be effectively lost and applications where it is simply not available. With such applications in mind we report experiments to assess the use of non-acoustic general electromagnetic motion sensors (GEMS). Whilst GEMS signals are essentially immune to background noise they are incomprehensible to the human listener. We show that GEMS signals nonetheless contain meaningful speech information within a usable bandwidth in the region of 1 to 2 kHz and report the first comparison of GEMS signals to acoustic signals in the context of automatic speech recognition (ASR). For a small, isolated digit ASR task in a speaker-dependent mode results show word accuracies of 77% are achieved using GEMS signals alone.
Year
Venue
Keywords
2008
Lausanne
acoustic signal processing,speech intelligibility,speech recognition,gems signals,acoustic signal,automatic speech recognition,background noise,bandwidth 1 khz to 2 khz,communication speech intelligibility system,high noise environments,human listener,isolated digit asr task,nonacoustic general electromagnetic motion sensors,speaker-dependent mode,speech quality,speech related information assessment,usable bandwidth
Field
DocType
ISSN
USable,Speech processing,Background noise,Voice activity detection,Computer science,Communications system,Speech recognition,Bandwidth (signal processing),Speech technology,Intelligibility (communication)
Conference
2219-5491
Citations 
PageRank 
References 
0
0.34
7
Authors
4
Name
Order
Citations
PageRank
Keith A. Jellyman100.34
Wei Ming Liu2233.89
Mason, J.S.D.31309.14
nicholas evans459454.41