Presentation 2005-05-19
On Improvement of Voice Quality in Noise Cancelers Based on Spectrum Suppression Approach
Hirokazu Suzuki, Kenji Nakayama, Akihiro Hirano,
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Abstract(in English) In this paper, some methods, which improve voice quality and suppress musical noise in noise cancellers based on spectrum suppression approach, have been discussed. First, in order to suppress musical noise, the spectrum is weighted so as to suppress the high frequency components, which are dominant in the musical noise. Second, in order to improve voice quality, the original noisy voice is added to the voice after noise cancellation. These methods have been simulated and compared to the conventional methods. The simulation results show the proposed methods can improve the voice quality and suppress the musical noise. However, the method adding the original noisy voice requires more proper threshold control.
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Paper # EA2005-6,SIP2005-11
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Committee SIP
Conference Date 2005/5/12(1days)
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Language JPN
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Title (in English) On Improvement of Voice Quality in Noise Cancelers Based on Spectrum Suppression Approach
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1st Author's Name Hirokazu Suzuki
1st Author's Affiliation Division of Electronics and Computer Science Graduate School of Natural Science and Technology, Kanazawa Univ.()
2nd Author's Name Kenji Nakayama
2nd Author's Affiliation Division of Electrical Engineering and Computer Science Graduate School of Natural Science and Technology, Kanazawa Univ.
3rd Author's Name Akihiro Hirano
3rd Author's Affiliation Division of Electrical Engineering and Computer Science Graduate School of Natural Science and Technology, Kanazawa Univ.
Date 2005-05-19
Paper # EA2005-6,SIP2005-11
Volume (vol) vol.105
Number (no) 55
Page pp.pp.-
#Pages 6
Date of Issue