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Low-complexity feature-mapped speech bandwidth extension
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2006 (Engelska)Ingår i: IEEE Transactions on Audio, Speech, and Language Processing, ISSN 1558-7916, E-ISSN 1558-7924, s. 577-588Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Today's telecommunications systems use a limited audio signal bandwidth. A typical bandwidth is 0.3-3.4 kHz, but recently it has been suggested that mobile phone networks will facilitate an audio signal bandwidth of 50 Hz-7 kHz. This is suggested since an increased bandwidth will increase the sound quality of the speech signals. Since only few telephones initially will have this facility, a method extending the conventional narrow frequency-band speech signal into a wide-band speech signal utilizing the receiving telephone only is suggested. This will give the impression of a wide-band speech signal. The proposed speech bandwidth extension method is based on models of speech acoustics and fundamentals of human hearing. The extension maps each speech feature separately. Care has been taken to deal with implementation aspects, such as noisy speech signals, speech signal delays, computational complexity, and processing memory usage.

Ort, förlag, år, upplaga, sidor
PISCATAWAY: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2006. s. 577-588
Nyckelord [en]
speech analysis, speech enhancement, speech synthesis
Nationell ämneskategori
Signalbehandling
Identifikatorer
URN: urn:nbn:se:bth-8158DOI: 10.1109/TSA.2005.855837ISI: 000235615000019Lokalt ID: oai:bth.se:forskinfo3CB98D78194F7D96C12575B000210E73OAI: oai:DiVA.org:bth-8158DiVA, id: diva2:835847
Tillgänglig från: 2012-09-18 Skapad: 2009-05-08 Senast uppdaterad: 2017-12-04Bibliografiskt granskad

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Claesson, Ingvar

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Claesson, Ingvar
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IEEE Transactions on Audio, Speech, and Language Processing
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