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Subjective Evaluation of High Resolution Audio under In-Car Listening Environments

High resolution audio (HRA) becomes increasingly popular both for music production and the consumers. It enables to record a music performance in a wide-band and precise digital audio format. It is, however, unclear in its perceptual advantage under some listening environments. In this study listening tests were carried out inside cars where 34 participants listened to the same music in four different audio formats. The participants chose an audio format with better quality in paired comparison among 192 kHz/24 bits PCM, 48 kHz/16 bits PCM, and two kinds of lossy-compressed MPEG audio formats. The participants, who are familiar with HRA and live music performance, could significantly discriminate among the audio formats.

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AES - Audio Engineering Society