|Title:||Energy normalization in automatic speech recognition||Journal:||Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)||Volume:||5246 LNAI||First page:||341||Last page:||347||Conference:||11th International Conference on Text, Speech and Dialogue, TSD 2008; Brno; Czech Republic; 8 September 2008 through 12 September 2008||Issue Date:||7-Oct-2008||Rank:||M23||ISBN:||978-3-540-87390-2||ISSN:||0302-9743||DOI:||10.1007/978-3-540-87391-4_44||Abstract:||
In this paper a novel method for energy normalization is presented. The objective of this method is to remove unwanted energy variations caused by different microphone gains, various loudness levels across speakers, as well as changes of single speaker loudness level over time. The solution presented here is based on principles used in automatic gain control. The use of this method results in relative improvement of the performances of an automatic speech recognition system by 26 %.
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