Speech dereverberation enhancement

Khalifa, Othman Omran and Hasmad, Safiyah and Abdul Malik, Noreha (2020) Speech dereverberation enhancement. In: The 12th National Technical Seminar on Unmanned System Technology 2020 (NUSYS’20), 24th- 25th November 2020, Kuala Lumpur. (Unpublished)

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Abstract

Reverberation is the process of multi-path propagation of a sound from its source to a receiver. It is a blind problem where the source signal is un-known and non-stationary as well as the acoustic channel also unknown and time-varying. Therefore, the effect of reverberation on speech causes sound distant and spectrally distorted and can also reduce intelligibility. Derever-beration is therefore an important speech enhancement. However, different methods were proposed to reduce the noise with keeping the original signal as natural as possible. In this paper, a method was proposed using Wiener fil-ter approach to enhance the reverberated speech signals. The mechanism and the theories of the Wiener filter on how to enhance the speech is fully ex-plained. In addition, Discrete Fourier Transformation, linear spectrum nor-malization, correlation algorithms are explained in detail. The techniques of Wiener filter has been implemented and the desired results of enhanced speech have been obtained successfully.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	4119/85619
Uncontrolled Keywords:	Speech enhancement, Dereverberation, Noise reduction, Wiener filter.
Subjects:	T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering
Depositing User:	Prof. Dr Othman O. Khalifa
Date Deposited:	04 Dec 2020 15:00
Last Modified:	04 Dec 2020 15:00
URI:	http://irep.iium.edu.my/id/eprint/85619

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