Tourniquet Mirage, a piece for orchestra and processed sound, is based on the recitation of a poem of the same name. Recitations are recorded and altered electronically through granulation and phase vocoding. Granular synthesis cuts audio up into "short sound grains" and combines them into a sequence of grains to form a longer final output. Phase vocoding uses Fourier analysis to analyze audio and represent it as a series of amplitudes, phases, and frequencies. The phase vocoder then uses this information to manipulate the audio without altering the overall structure of the waveform. / The processed sound part is closely linked to the music in the orchestra. This is as a result of developing the pitch-material of the orchestra by spectrally analyzing the processed audio. At certain times, the relationship between the electronics part and the sound of the orchestra is blurred. To accomplish this, the related formal sections of the orchestra are situated in a canonic relationship with respect to the processed-sound part. The thesis is in two parts: an analysis and an orchestral score.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.83162 |
| Date | January 2003 |
| Creators | Christensen, Justin |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| 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: 002024886, proquestno: AAIMR12781, Theses scanned by UMI/ProQuest. |
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