Abstract: With consumers concerning about the sound quality of a refrigerator, the refrigerator compression sound quality, one of the main noise sources is more and more taken seriously by the compressor manufacturer. In this paper, a refrigerator compressor is chosen as the research object, the sound quality analysis method is used, and the customer's most concerned sound "buzz" and "shrill" is subjectively evaluation and objectively tested. And the relationship is established between the subjective and objective results. The research has shown that certain subjective feeling can be characterized through objective acoustic quality index, this result lays foundation for the rapid assessment and improve of the sound quality in the future.

Key words: Sound quality, Compressor noise, Correlation analysis, Subjective acoustic evaluation, Objective quality indicators