Simultaneous Echo Cancellation and Car Noise Suppression Employing a Microphone Array
Responsible organisation
1997 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]
This paper presents a method to simultaneously perform 20 dB acoustic echo cancellation and 15-20 dB speech enhancement using an adaptive microphone array combined with spectral subtraction. Primarily intended for handsfree telephones in automobiles, the microphone array system simultaneously emphasizes the near-end talker and suppresses the handsfree loudspeaker and the broadband car noise. The array system is based on a fast and efficient on-site calibration and can be used in other situations such as conventional speaker phones.
Place, publisher, year, edition, pages
Munich, Germany: IEEE Comput. Soc. Press , 1997.
Keywords [en]
acoustic noise, acoustic signal processing, acoustic transducer arrays, adaptive signal processing, array signal processing, automobiles, calibration, direction-of-arrival estimation, echo suppression, microphones, noise abatement, radiotelephony, speech enhancement, telephony
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9559ISI: A1997BH95E00061Local ID: oai:bth.se:forskinfoC73718A4940CDD81C1256C6A004866EAISBN: 0-8186-7919-0 (print)OAI: oai:DiVA.org:bth-9559DiVA, id: diva2:837434
Conference
IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP-97, Invited paper
2012-09-182002-11-072025-09-30Bibliographically approved