Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
A cepstrum domain HMM-based speech enhancement method applied to nonstationary noise
Ansvarlig organisasjon
2005 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert) Published
Abstract [en]

This paper presents a Hidden Markov Model (HMM)-based speech enhancement method, aiming at reducing non-stationary noise from speech signals. The system is based on the assumption that the speech and the noise are additive and uncorrelated. Cepstral features are used to extract statistical information from both the speech and the noise. A-priori statistical information is collected from long training sequences into ergodic hidden Markov models. Given the ergodic models for the speech and the noise, a compensated speech-noise model is created by means of parallel model combination, using a log-normal approximation. During the compensation. the mean of every mixture in the speech and noise model is stored. The stored means are then used in the enhancement process to create the most likely speech and noise power spectral distributions using the forward algorithm combined with mixture probability. The distributions are used to generate a Wiener filter for every observation. The paper includes a performance evaluation of the speech enhancer for stationary as well as non-stationary noise environment.

sted, utgiver, år, opplag, sider
Coolangatta, AUSTRALIA: Springer , 2005.
Emneord [en]
HMM, PMC, speech enhancement, log-normal
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-8377ISI: 000226081100001Lokal ID: oai:bth.se:forskinfo39C65686A7F30199C12574FA00468720ISBN: 0-387-22847-0 (tryckt)OAI: oai:DiVA.org:bth-8377DiVA, id: diva2:836090
Konferanse
7th International Symposium on Digital Signal Processing for Communication, Systems, DEC, 2003
Merknad
SIGNAL PROCESSING FOR TELECOMMUNICATIONS AND MULTIMEDIA Book Series: MULTIMEDIA SYSTEMS AND APPLICATIONS (SERIES) Vol. 27Tilgjengelig fra: 2012-09-18 Laget: 2008-11-07 Sist oppdatert: 2015-06-30bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Personposter BETA

Nilsson, MikaelDahl, MattiasClaesson, Ingvar

Søk i DiVA

Av forfatter/redaktør
Nilsson, MikaelDahl, MattiasClaesson, Ingvar

Søk utenfor DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric

isbn
urn-nbn
Totalt: 67 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf