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Least Squares Design of Nonuniform Filter Banks with evaluation Seech Enhancement
Responsible organisation
2003 (English)Conference paper, (Refereed) Published
Abstract [en]

This paper presents a method for least squares design of nonuniform filter banks for application in subband signal processing. Design objectives aim to optimize the filter bank frequency response while minimizing subband and output aliasing. Aliasing is minimized although magnitude and phase changes affect the aliasing terms. Filter banks with increasing bandwidth are designed with the proposed method and evaluated in speech enhancement using a spectral subtraction algorithm. When using a nonuniform frequency resolution approximating that of the human auditory system it is shown that an increased noise reduction and SNR improvement is achieved while maintaining the speech quality for a fixed number of frequency-bands.

Place, publisher, year, edition, pages
HONG KONG, PEOPLES R CHINA: IEEE , 2003.
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9644ISI: 000185463700028Local ID: oai:bth.se:forskinfoB3FD8123611E9856C1256D4F0015AAC6ISBN: 0-7803-7663-3 (print)OAI: oai:DiVA.org:bth-9644DiVA: diva2:837547
Conference
IEEE International Conference on Acoustics, Speech, and Signal Processing
Available from: 2012-09-18 Created: 2003-06-24 Last updated: 2015-06-30Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • Other locale
More languages
Output format
  • html
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