MX9706033A - Deteccion de actividad de voz. - Google Patents

Deteccion de actividad de voz.

Info

Publication number
MX9706033A
MX9706033A MX9706033A MX9706033A MX9706033A MX 9706033 A MX9706033 A MX 9706033A MX 9706033 A MX9706033 A MX 9706033A MX 9706033 A MX9706033 A MX 9706033A MX 9706033 A MX9706033 A MX 9706033A
Authority
MX
Mexico
Prior art keywords
input
speech
voice activity
output
input signal
Prior art date
Application number
MX9706033A
Other languages
English (en)
Other versions
MXPA97006033A (es
Inventor
James Anthony Bridges
Original Assignee
British Telecomm
Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Telecomm, Company filed Critical British Telecomm
Publication of MX9706033A publication Critical patent/MX9706033A/es
Publication of MXPA97006033A publication Critical patent/MXPA97006033A/es

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Quality & Reliability (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Telephonic Communication Services (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Un detector de actividad de voz que comprende una entrada para recibir una señal de discurso de salida transmitida desde un sistema de discurso a un usuario y una entrada para recibir una señal de entrada desde el usuario. Ambas señales de salida y de entrada están divididas en marcos limitados por tiempo, se proporcionan los medios para calcular un aspecto de cada marco de la señal de entrada y para formar una funcion del aspecto calculado y un umbral. Con base en la funcion, se determina si la señal de entrada incluye o no discurso. Se proporcionan medios para determinar la pérdida de regreso de eco durante una señal de discurso de salida desde el sistema de discurso interactivo y para controlar el umbral dependiendo de la pérdida de regreso de eco medida.
MXPA/A/1997/006033A 1995-02-15 1997-08-07 Deteccion de actividad de voz MXPA97006033A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP95300975 1995-02-15
EP95300975.0 1995-02-15
PCT/GB1996/000344 WO1996025733A1 (en) 1995-02-15 1996-02-15 Voice activity detection

Publications (2)

Publication Number Publication Date
MX9706033A true MX9706033A (es) 1997-11-29
MXPA97006033A MXPA97006033A (es) 1998-07-03

Family

ID=

Also Published As

Publication number Publication date
US5978763A (en) 1999-11-02
AU4672196A (en) 1996-09-04
NO973756L (no) 1997-10-15
EP0809841B1 (en) 2001-04-11
KR19980701943A (ko) 1998-06-25
DE69612480D1 (de) 2001-05-17
AU707896B2 (en) 1999-07-22
CN1174623A (zh) 1998-02-25
NO973756D0 (no) 1997-08-14
NZ301329A (en) 1998-02-26
DE69612480T2 (de) 2001-10-11
CA2212658C (en) 2002-01-22
FI973329L (fi) 1997-08-14
CA2212658A1 (en) 1996-08-22
JPH11500277A (ja) 1999-01-06
EP0809841A1 (en) 1997-12-03
HK1005520A1 (en) 1999-01-15
FI973329A7 (fi) 1997-08-14
FI973329A0 (fi) 1997-08-14
ES2157420T3 (es) 2001-08-16
WO1996025733A1 (en) 1996-08-22

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Legal Events

Date Code Title Description
FA Abandonment or withdrawal