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Memorias de investigación
Artículos en revistas:
Robust Speech Detection for Noisy Environments
Año:2011
Áreas de investigación
  • Tecnología electrónica y de las comunicaciones,
  • Ingeniería eléctrica, electrónica y automática
Datos
Descripción
This presents a robust voice activity detector (V AD) based on Hidden Markov Models (HMM) in stationary and non-stationary noise environments: inside motor vehicles (like cars or planes) or inside buDdings close to high traffic places (like in a control tower for air tramc control (ATC». In these environments, there is a high stationary noise level caused by vehicle motors and additionally, there could be people speaking at certain distance from the main speaker producing non-stationary noise. The V AD presented herein Is characterized by a new front-end and a noise level adaptation process that increases significantly the V AD robustness for different signal to noise ratios (SNRs). The feature vector used by the V AD includes the most relevant Mel Frequency Cepstral Coefficients (MFCC), normalized log energy, and delta log energy. The proposed V AD has been evaluated and compared to other weD-known V ADs using three databases containing different noise conditions: speech in clean environments (SNRs > 20 dB), speech recorded in stationary noise environments (inside or close to motor vehicles), and finally, speech in non-stationary environments (including noise from bars, television, and far-field speakers). In the three cases, the detection error obtained with the proposed V AD is the lowest for all SNRs compared to Acero's V AD
Internacional
Si
JCR del ISI
Si
Título de la revista
Ieee Aerospace And Electronic Systems Magazine
ISSN
0885-8985
Factor de impacto JCR
0,179
Información de impacto
Volumen
26
DOI
Número de revista
11
Desde la página
16
Hasta la página
23
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Oscar Varela (Indra)
  • Autor: Ruben San Segundo Hernandez (UPM)
  • Autor: Luis Alfonso Hernandez Gomez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Aplicaciones del Procesado de Señal (GAPS)
  • Departamento: Señales, Sistemas y Radiocomunicaciones
  • Departamento: Ingeniería Electrónica
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