Research on Music Emotion Intelligent Recognition and Classification Algorithm in Music Performance System

Table 1

The corresponding relationship between acoustic features and music emotion.

Acoustic features	Pronunciation	Tone quality	Speech speed	Intensity	Mean pitch	Pitch range
Happy	Normal	Breathing sound, chirping sound	Fast or slow	High	Very high	Very wide
Hate	Normal	Mumble, chest voice	Extremely fast	Low	Extremely low	Slightly wider
Anger	Tight	Breathing sound	Slightly faster	High	Extremely high	Very wide
Sadness	Vague	Resonance sound	Slightly slower	Low	Slightly lower	Slightly narrow
Fear	Clear	Shrill voice	Very fast	Normal	Extremely high	Very wide