I. Ocean II. Fog III. Harbour IV. Dragon
The source materials, one sequence for each movement, are recordings of Canadian West Coast environmental sound, namely (in order) ocean waves on the west coast of Vancouver Island, boathorns in Vancouver harbour on New Year's Eve, Vancouver harbour ambience with seagulls, and the Dragon Dance in Vancouver's Chinatown celebrating the Chinese New Year. All sounds are heard at their original pitch.
Pacific is available
on the Cambridge Street Records CD Pacific Rim. Three of its movements exist in
versions featuring live performers or graphic images, namely Pacific Fog, Ocean and
the latter two being available on a DVD video
and can be seen here.
B. Truax, "Composing with Time-Shifted Environmental Sound," Leonardo Music Journal, 2(1), 1992, 37-40.
The work was realized using the composer's PODX system which incorporates the DMX-1000 Digital Signal Processor controlled by a PDP Micro-11 computer. The principal signal processing technique involves time stretching of the sampled environmental sound with software for real-time granular synthesis developed by the composer in the School for the Contemporary Arts at Simon Fraser University. Sound densities ranging up to 2000 events/second were recorded on 8-track tape and mixed down in the Sonic Research Studio at SFU.