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Request for comments of audio features for quality difference, thanks very much

Dear all,
Different audio contents may be given the different qualities, even at the same bitrate when coded. I am looking for the audio features which can be used to express the difference between the different contents. For example, in subjective video quality assessment, the spatial complex and the temporal motion activity can be used in selecting the video samples. So, are there the similar and comparatively simple audio features?
Your comments will be highly appreciated, thank you very much.
Best Regards,