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http://dx.doi.org/10.7776/ASK.2013.32.3.269

Restoration for Speech Records Managed by the National Archives of Korea  

Oh, Sejin (Yonsei University)
Kang, Hong-Goo (Yonsei University)
Publication Information
The Journal of the Acoustical Society of Korea / v.32, no.3, 2013 , pp. 269-278 More about this Journal
Abstract
The speech recording of the National Archives of Korea contains very important traces which represent modern times of Korea. But the way to be recorded by analogue is easily contaminated as time goes by. So it has to be digitalized for management and services. Consequently, restoration method of distorted speech is needed. We propose the four classes for each distortion kind and apply restoration algorithms for the cases of speech level, stationary noise and abrupt noise. As a result, speech volume adjusts to -26 dBov for only on the speech region and SNR improves above 10dB. Especially, conventional way to remove the noise is almost impossible because we need to listen to all of them but it can be more effective by adaptation of auto restoration algorithm.
Keywords
Speech signal processing; Archives; Noise; Stationary; Abrupt; Impulsive;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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