Universiti Teknologi Malaysia Institutional Repository

Minimum phase whitening filter to speech beamforming technique

Jeong, Jin Soo (2013) Minimum phase whitening filter to speech beamforming technique. In: Proceedings of the 2013 IEEE 8th Conference on Industrial Electronics and Applications, ICIEA 2013.

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Official URL: http://dx.doi.org/10.1109/ICIEA.2013.6566583


This paper presents application of minimum phase whitening filter for speech enhancement technique to two-microphone beamforming structure. The method uses switching technique for updating the estimate alternately between frontend minimum phase whitening filter during speech plus noise period and rear-end adaptive finite impulse response (FIR) filter during noise alone period. For application of speech beamforming technique, innovations-based minimum phase whitening filter is applied in front of sum and subtract (SS) function with the use of one sample delay filter in rear-end primary input. A test result shows that the proposed approach by alternately switching minimum phase whitening filter and adaptive FIR filter provides an improved performance of 5.9dB and 18.03dB in signal-to-noise ratio (SNR) in stationary noise and non-stationary noise, respectively than adaptive Griffiths and Jim (G-J) beamformer by alternately switching two adaptive FIR filters.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:beamforming
Subjects:Q Science > QH Natural history
Divisions:Biosciences and Medical Engineering
ID Code:51168
Deposited By: Haliza Zainal
Deposited On:27 Jan 2016 09:53
Last Modified:17 Sep 2017 16:09

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