EIA/NRSC DAR systems subjective tests. I. Audio codec quality

The method, results and conclusions of subjective tests of the basic audio quality of nine digital audio radio (DAR) systems are presented. These systems were proposed to the EIA/NRSC committees for standardization in the USA. The subjective audio tests were carried out at the Communications Research Centre in Ottawa, Canada for the Electronics Industries Association (EIA). Clear comparative results were obtained. The discussion focuses on the subjective merits of the various systems in relation to bit rate considerations.