Abstract: As users pay more attention to the acoustic comfort of household appliances, the research and application of sound quality evaluation in the household appliances industry are becoming more and more extensive. Taking the noise of refrigerator products as the research object, collecting the sound samples of several sets of samples, and carrying out the subjective evaluation of the sound quality. After the data processing, combined with the objective evaluation results, the sound quality model of the refrigerator noise under different working conditions was established. The results show that the main objective factors affecting the sound quality of refrigerators are loudness, tonality, roughness and sharpness.

Key words: Sound quality, Refrigerator, Objective parameters, Model