A low complexity double-talk detector based on the signal envelope - Publikacja - MOST Wiedzy

Wyszukiwarka

A low complexity double-talk detector based on the signal envelope

Abstrakt

A new algorithm for double-talk detection, intended for use in the acoustic echo canceller for voice communication applications, is proposed. The communication system developed by the authors required the use of a double-talk detection algorithm with low complexity and good accuracy. The authors propose an approach to doubletalk detection based on the signal envelopes. For each of three signals: the far-end speech, the microphone signal and the echo estimate, an envelope is detected. Next, using these envelopes, a detection function is determined and compared to the threshold. Additionally, a dynamic threshold is introduced in order to improve the accuracy of the algorithm. The results of the simulations presented in the paper proved that the accuracy of double-talk detection obtained using the proposed algorithm is higher than in the Geigel algorithm and comparable to the correlation-based methods, while the computational complexity of the proposed method remains at an acceptable level. The double-talk detection algorithm presented here may be used in voice communication systems having limited resources, allowing for accurate double-talk detection and, as a consequence, efficient acoustic echo cancellation.

Cytowania

  • 1 2

    CrossRef

  • 1 0

    Web of Science

  • 1 4

    Scopus

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie z listy filadelfijskiej
Opublikowano w:
SIGNAL PROCESSING nr 88, strony 2856 - 2862,
ISSN: 0165-1684
Język:
angielski
Rok wydania:
2008
Opis bibliograficzny:
Szwoch G., Czyżewski A., Kulesza M.: A low complexity double-talk detector based on the signal envelope// SIGNAL PROCESSING. -Vol. 88., nr. iss. 11 (2008), s.2856-2862
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.sigpro.2008.05.013
Weryfikacja:
Politechnika Gdańska

wyświetlono 32 razy

Publikacje, które mogą cię zainteresować

Meta Tagi