From psychoacoustic point of view, sound quality assessment of laser printers becomes important work for the customer satisfaction. According to previous research, the sound quality of a laser printer has been assessed by psychoacoustic parameters such as loudness, sharpness, roughness, fluctuation strength and tonality. Among these parameters, tonality has low correlation with subjective assessment of operating sound generated from a laser print while other parameters have reasonable correlation. This paper proposes new tonality, "it is called AVSP tonality," having high correlation with subjective assessment. In addition to this work, sound quality index is also developed by combining these parameters for the objective assessment of overall sound quality on laser printers. Finally, this sound quality index is applied to the improvement of sound quality of a sampled laser printer. (C) 2013 Institute of Noise Control Engineering.
