Reiss took a stab at settling the argument with a meta-analysis — a study of studies — on whether people can really perceive better-than-CD quality sound. He analysed data from 18 studies, including more than 400 participants and nearly 13,000 listening tests. Overall, listeners picked out the better-than-CD-quality track 52.3 percent of the time. Statistically significant, if not all that impressive.