Our paper analyzed relevant acoustic parameters of people's speech samples and the results that compared with English standard pronunciation with methods of experimental phonetics by phonetic analysis software and statistical analysis software. Then we summarized phonetic pronunciation errors of college students through the analysis of English pronunciation of vowels, we found that college students' English pronunciation are easy occur tongue position and lip shape errors during pronounce vowels. Based on analysis of pronunciation errors, we put forward targeted voice training for college students' English pronunciation, eventually increased the students learning interest, and improved the teaching of English phonetics.
Abstract. This paper uses phonetic analysis software Praat to extract the fundamental frequency values and energy values of Beethoven's Piano Sonata Op.110, and examines the acoustic characteristics of Beethoven's later piano sonatas. The research shows: fundamental frequency values of Piano Sonata Op.110's three movements range between 80Hz-600Hz, energy intensity values range between 40dB-80dB, and the theme and emotion the composer expressed in each movement and the playing strength will have a certain effect on the changes in the movement's fundamental frequency and energy.
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