Design of the Violin Performance Evaluation System Based on Mobile Terminal Technology
نویسندگان
چکیده
In order to solve the problem that violin performance evaluation is too subjective, this paper proposes a system based on mobile terminal technology. Violin sound mainly includes two indicators such as pronunciation quality and distance transmission ability. LabVIEW 8.2 used collect data, fast Fourier transform (FFT) analyze time-domain signal in frequency domain, process of discussed depth. Using statistical methods test data transmission, parameter model representing ability proposed, finally WeChat applet control recording display. The results show production accompanied by weakening octave peaks development overtone peaks. stable stage marked stability each peak peak. head initially presents simple excitation response, with only one near three cycles. Its maximum peak/dominant ratio coefficient k = 0.36; back entry complex response has about nine cycles, 0.735. Then enter quasi-stable whose waveform similar typical A-string empty string pull later stage, peak/main proportional 0.39 rising section start, 0.2 loudest section, 0.26 section. Conclusion. established new instrumented method, which provides way thinking for improving quantifiable future.
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ژورنال
عنوان ژورنال: Mathematical Problems in Engineering
سال: 2022
ISSN: ['1026-7077', '1563-5147', '1024-123X']
DOI: https://doi.org/10.1155/2022/8269007