Perceptual low bit-rate audio coding schemes cannot be evaluated with the traditional method of measuring the difference between input signal and output signal. A valid measure is the severity of differences between input and output that are audible to human listeners, measurement of which requires well-conducted subjective testing. Test sensitivity is improved through the use of "critical" audio program. Selection of such audio material has in the past been done by subjective listening. An objective method of selecting critical material could offer many advantages, including faster and simpler selection of new materials, the ability to evaluate a much larger number of potential materials, and the potential of much better critical materials as a larger portion of available music is explored. The use of perceptual models for selection of critical materials has been investigated. Prediction of criticality was found to be inadequate with the models used.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.29771 |
| Date | January 1996 |
| Creators | McKinnie, Douglas J. |
| Contributors | Woszczyk, Wieslaw (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Music (Faculty of Music.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001810179, proquestno: MQ70552, Theses scanned by UMI/ProQuest. |
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