Subjective and Objective Evaluation of Compressor Sound Quality and Correlation Research

The compressor for air-conditioner was tested in noise at site.Subjective evaluation of the sound quality preference was carried out with rank marking.A-weighted sound level、loudness and sharpness were calculated out as objective evaluation labels of the sound quality.The correlation analysis and linear regression analysis were carried out between the subjective and objective results.The prediction model was proposed for subjective preference.The research results indicate that the compressor sound quality is mainly affected by A-weighted sound level、loudness and sharpness.