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The Science and Technology of Music


Research Project: Discrimination thresholds for compressed (mp3) audio

Back to Research Field: Music Perception and Cognition

Discrimination thresholds for compressed (mp3) audio

  Research Project Information
Runtime: Jan 03, 2006 until Dec 29, 2020
Student staff: Valorie Salimpoor (McGill, Psychology); Mary Sutherland (McGill, Psychology)
Funding: Bell Canada Enterprises; James McGill Professor Program; Natural Sciences and Engineering Council of Canada (NSERC); Canada Foundation for Innovation (CFI)

The aim of this study was to compare the quality of three variations of digital music compression with an uncompressed CD-quality file. Two experiments were designed to assess participants' judgments of the quality of the various degrees of compression. The first experiment was intended to establish whether participants can distinguish between the different qualities of the digital audio files (DAF). The second experiment has been designed to explore which DAF people prefer listening to.