Auditory speech preprocessors

Conference · Sun Jan 01 00:00:00 EST 1989

DOI:https://doi.org/10.3115/100964.100989· OSTI ID:6292739

Zweig, G

A nonlinear transmission line model of the cochlea (Zweig 1988) is proposed as the basis for a novel speech preprocessor. Sounds of different intensities, such as voiced and unvoiced speech, are preprocessed in radically different ways. The Q's of the preprocessor's nonlinear filters vary with input amplitude, higher Q's (longer integration times) corresponding to quieter sounds. Like the cochlea, the preprocessor acts as a ''subthreshold laser'' that traps and amplifies low level signals, thereby aiding in their detection and analysis. 17 refs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6292739
• Report Number(s): LA-UR-89-939; CONF-890291-1; ON: DE89009280
• Resource Relation: Conference: DARPA speech and natural language workshop, Philadelphia, PA, USA, 21 Feb 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
AUDITORY ORGANS
MATHEMATICAL MODELS
SPEECH
PROCESSING
ACOUSTICS
COMMUNICATIONS
DIFFERENTIAL EQUATIONS
NATURAL LANGUAGE
NONLINEAR PROBLEMS
ONE-DIMENSIONAL CALCULATIONS
SOUND WAVES
VERTEBRATES
ANIMALS
BODY
EQUATIONS
ORGANS
PROGRAMMING LANGUAGES
SENSE ORGANS
550000* - Biomedical Sciences
Basic Studies
990230 - Mathematics & Mathematical Models- (1987-1989)