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Measuring acoustic reduction in feature space
Rodríguez Fonollosa, José Adrián; Schulz, Henrik
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla
Modelling varying speaking style remains a challenge to sta te of the art speech recognition and synthesis systems. Vowel a nd consonant reduction have been identified as correlative to speaking st yle variation, but still lack a common measurement. The reduction phenomen aare often observed without consideration of coarticulation an dassimilation e ! ects, and as a result of speaking rate variability. We present an analy- sis of acoustic reduction in Mel Frequency cepstral coe " cie nts (MFCC) feature space of phonemes, estimate duration and determine the degree of correlation between duration reduction and feature spac ereduction for two di ! erent speaking styles present in broadcast news a nd conversa- tional recordings. We analyse the feature space reduction o fconsonants and vowels in context in a syllable environment
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la parla i del senyal acústic
Automatic speech recognition
Reconeixement automàtic de la parla

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