Perceptual cepstrum distance and sound quality evaluation with multitone

Relationship between perceptual cepstrum distance and sound quality evaluation of audio system is studied with multitone.Subjective validation experiment shows that the perceptual cepstrum distance can correctly reflect the influence of frequency response of the audio system on sound quality.When proper signal sources are used,the correlation coefficient between objective and subjective results all exceed 0.84,with the highest one being 0.964.