Observatorio de I+D+i UPM

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
10.1109/MAES.2011.6070277
Número de revista
11
Desde la página
16
Hasta la página
23
Mes
NOVIEMBRE
Ranking
Q4
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 Tecnología del Habla
  • Departamento: Señales, Sistemas y Radiocomunicaciones
  • Departamento: Ingeniería Electrónica
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