Yevgeny Beiderman, Yaniv Azani, Yoni Cohen, Chen Nisankoren, M. Teicher, V. Micó, Javier García, Z. Zalevsky
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Cleaning and Quality Classification of Optically Recorded Voice Signals
A newly developed optical technology for remote recording of voice signal was recently demonstrated. In this paper we present a signal processing approach for improving the quality of the recording and then for classifying the characteristics of the recording done using this system. In both cases the proposed signal processing operations are applied over the spectrogram of the optically recorded signals.
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