DocumentCode
2301873
Title
An improved soft threshold method for DCT speech enhancement
Author
Ngoc Le, Phu ; Ambikairajah, Eliathamby ; Choi, Eric
Author_Institution
Sch. of Electr. Eng. & Telecommun., The New South Wales Univ., Sydney, NSW
fYear
2008
fDate
4-6 June 2008
Firstpage
268
Lastpage
271
Abstract
An improved soft threshold method for speech enhancement in the discrete cosine transform (DCT) domain is proposed in this paper. Rather than apply a threshold only to noise-dominant frames, as per traditional DCT-based approaches, our proposed approach also applies the threshold process appropriately in signal-dominant frames. Experimental results show a quality improvement with our proposed method compared to traditional soft threshold methods.
Keywords
discrete cosine transforms; speech enhancement; DCT domain; discrete cosine transform; noise-dominant frames; signal-dominant frames; soft threshold method; speech enhancement; Additive white noise; Australia; Availability; Background noise; Communications technology; Discrete cosine transforms; Fourier transforms; Gaussian noise; Signal processing; Speech enhancement; DCT; soft threshold; speech enhancement;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications and Electronics, 2008. ICCE 2008. Second International Conference on
Conference_Location
Hoi an
Print_ISBN
978-1-4244-2425-2
Electronic_ISBN
978-1-4244-2426-9
Type
conf
DOI
10.1109/CCE.2008.4578970
Filename
4578970
Link To Document