Key points are not available for this paper at this time.
The spectrogram analysis technology via computer application makes voice visualized, realizes the integrated teaching mode of "mouth to ear- nose", and improves the teaching quality of vocal music.The technology gives a dynamic map of singing respiration and singing organs, and the singing process is specified by the harmony search algorithm. This technology solves problems of shallow breathing, slurred speech and incorrect use of resonant cavity. The spectrogram analysis visualizes vocal music teaching, improves students' abilities of singing, practice and innovation.
Liu et al. (Tue,) studied this question.