Perceptive indicators
Acoustic perception and sound quality

The purpose of these indicators is to represent certain basic [36] sound dimensions: sound level, frequency balance, temporal regularity, etc. They are largely derived from the work of psychoacousticians such as Eberhardt Zwicker. They are largely derived from the work of psychoacousticians such as Eberhardt Zwicker, whose work is summarized in [23] . Without going into too much detail, we'll outline the most commonly used indicators here.