Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Robust Speech Detection for Noisy Environments
Year:2011
Research Areas
  • Electronic technology and of the communications,
  • Electric engineers, electronic and automatic (eil)
Information
Abstract
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
International
Si
JCR
Si
Title
Ieee Aerospace And Electronic Systems Magazine
ISBN
0885-8985
Impact factor JCR
0,179
Impact info
Volume
26
Journal number
11
From page
16
To page
23
Month
SIN MES
Ranking
Participants
  • Autor: Oscar Varela (Indra)
  • Autor: Ruben San Segundo Hernandez (UPM)
  • Autor: Luis Alfonso Hernandez Gomez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Aplicaciones del Procesado de Señal (GAPS)
  • Departamento: Señales, Sistemas y Radiocomunicaciones
  • Departamento: Ingeniería Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)