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Analysis of Parameters of the Speech Signal Loudness of Professional Television Announcers

The paper analyses speech loudness of professional announcers, who do large percentage of television audio signals. Over 100 files of speech signals recorded with same equipment were analysed. For each file authors calculated loudness and true peak, according to ITU-R BS 1770 and EBU R128 and RMS. There were criteria adopted for classification of records, and results were statistically analysed. Analysis showed that loudness of speech signal depends on gender of speakers, intonation and type of programme material, and also that files of greater loudness may not always have higher peak value to files of lower loudness. It was noted there was a significant overlap among the short-term loudness and RMS values calculated with the same time constant.

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