Vol. 40 No. 4 (2012)

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Editorial

President’s message

Christian Giguère

1-2

Technical Articles

Departures from the acoustical parameters in the intonation of South Indian Musical Intervals

M. M. Komaragiri

3-12
Spectrogram analysis of circumferential modes propagating around the cicular cylindrical shell immersed in water

M. Laaboubi, A. Dliou, R. Latif, E. Aassif, G. Maze

13-22
Acoustics of suspended ceilings and speech privacy

H. S. Seddeq

23-28
Perception of natural vowels by monolingual Canadian-English, Mexican-Spanish, and Penninsular-Spanish listeners

G. S. Morrison

29-40
Scale-model investigation of the effects of surface absorption and nearby foliage on noise-barier performance

S. Daltrop, M. Hodgson

41-48
Acoustics Standards Activity in Canada - 2012

Tim Kelsall

49-50

Proceedings of the Acoustics Week in Canada

Mapping Perceptual Distances between Sibilant and Palatal Fricatives

Corey Telfer

51-52
Extending the Capability of the Complex Effective Depth Approximation

David J. Thomson, Gary H. Brooke

53-54