The paper makes a quantitative analysis and comparison on the continuous speech emotion of Lhasa Tibetan in the four basic emotional patterns (happy, surprise, sad, neutral) pitch, energy and time length by experimental phonetics and the linear statistical research methods, found that there is a positive correlation between the Lhasa Tibetan emotional speech and pitch, energy and duration ,etc. And the pitch, energy and duration of negative emotion acoustic parameters are bigger than positive emotion, on this basis, drawing the Lhasa Tibetan speech emotion acoustic feature patterns. Compared with the Chinese language and the Tibetan, even though both have the tone prosodic features, they also have significant differences in the acoustic characteristics of the speech emotion.

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.