skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Speech coding, reconstruction and recognition using acoustics and electromagnetic waves

Patent ·
OSTI ID:871425
 [1];  [2]
  1. Berkeley, CA
  2. Danville, CA
+ Show Author Affiliations

The use of EM radiation in conjunction with simultaneously recorded acoustic speech information enables a complete mathematical coding of acoustic speech. The methods include the forming of a feature vector for each pitch period of voiced speech and the forming of feature vectors for each time frame of unvoiced, as well as for combined voiced and unvoiced speech. The methods include how to deconvolve the speech excitation function from the acoustic speech output to describe the transfer function each time frame. The formation of feature vectors defining all acoustic speech units over well defined time frames can be used for purposes of speech coding, speech compression, speaker identification, language-of-speech identification, speech recognition, speech synthesis, speech translation, speech telephony, and speech teaching.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
DOE Contract Number:
W-7405-ENG-48
Assignee:
Regents of University of California (Oakland, CA)
Patent Number(s):
US 5729694
OSTI ID:
871425
Country of Publication:
United States
Language:
English

References (8)

Review of text‐to‐speech conversion for English journal September 1987
A new inverse‐filtering technique for deriving the glottal air flow waveform during voicing journal June 1973
A model of articulatory dynamics and control journal January 1976
An experimental field trial of a large vocabulary speaker independent recognition system conference August 2002
Technologies for multimedia communications journal April 1994
Speech Analysis Synthesis and Perception book January 1965
A hybrid time-frequency domain articulatory speech synthesizer journal July 1987
The inverse problem for the vocal tract: Numerical methods, acoustical experiments, and speech synthesis journal March 1983

Similar Records

Related Subjects

speech
coding
reconstruction
recognition
acoustics
electromagnetic
waves
radiation
conjunction
simultaneously
recorded
acoustic
information
enables
complete
mathematical
methods
forming
feature
vector
pitch
period
voiced
vectors
time
frame
unvoiced
combined
deconvolve
excitation
function
output
describe
transfer
formation
defining
units
defined
frames
purposes
compression
speaker
identification
language-of-speech
synthesis
translation
telephony
teaching
acoustic speech
magnetic wave
transfer function
electromagnetic waves
time frame
electromagnetic wave
speech coding
speech information
information enables
/705/704/