Music Sense Analysis of Bel Canto Audio and Bel Canto Teaching Based on LSTM Mixed Model

Table 1

Audio characteristics.

Characteristics of audio frequency	Classification of features
Maximum, mean, variance	Advanced statistical features (HSFs)
MFCC, zero crossing rate, spectral centroid, spectral bandwidth,spectral attenuation, spectral flux, chroma characteristics	Low-level descriptive features (LLDs)