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This paper deals with design and implementation of a Czech database of emotion samples in the form of short sound records and the tool evaluating database samples by applying subjective methods. In order to create the database of emotion samples, it was necessary to extract sound records of broadcasting from three radio and one television channel. Emotion database was created after manual analyzis...
This paper describes synthesized speech intelligibility testing using DRT (Diagnostic Rhyme Test) and SUS (Semantically Unpredictable Sentences) for Serbian language. The description of a program for creating semantically unpredictable sentences for five basic sentence structures in Serbian language, called SUSmaker, is also given. An overview of AlfaNum speech synthesizer evaluation results is presented...
SPam over Internet Telephony (SPIT) had been become a very serious issue in recent years. The threat is going to spin out from the well known email spam problem by bot nets being reprogrammed to initiate not just spam emails but also Voice over IP (VoIP) calls. Preventing SPIT is a new problem, because many well-established methods for blocking email spam cannot be applied. Though the need for SPIT...
In this paper, we propose a robust STBC transmission scheme to combat the timing synchronization errors over frequency-selective multiple-access channels. First, the equivalent channel model in the presence of timing synchronization errors is derived and we find that the synchronization errors result in an equivalent channel model with larger number of correlated channel taps. Based on this correlated...
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