Publications-Detail
Low Delay Filter for Adaptive Noise Reduction
- Authors:
- Löllmann, H. W. , Vary, P.
- Book Title:
- Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC)
- Organization:
- Technische Universiteit Eindhoven
- Pages:
- p.p. 205-208
- Address:
- Eindhoven, The Netherlands
- Date:
- Sep. 2005
- Language:
- English
Abstract
A filter structure is proposed which has a significantly lower signal delay than common frequency-domain filtering by means of an analysis-synthesis filter-bank (AS FB). The recently published filter-bank equalizer (FBE) is a filter(-bank) with a lower signal delay compared to the corresponding AS FB. In this contribution, the signal delay of the FBE is further reduced by approximating the time-domain filter of the FBE by a filter of lower degree. The proposed low delay filter (LDF) achieves a higher amount of noise reduction than an AS FB or FBE with the same signal delay.Download
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