Vol. 19 No. 4 (1991)

Topics: small enclosures; architectural acoustics; acoustic radiation; acoustic sources; electroacoustics; vibration control; noise control; underwater acoustics; hearing and noise exposure; speech production; speech perception; auditory processing; speech synthesis; applied speech technology; speech recognition

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Editorial

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1-4

Proceedings of the Acoustics Week in Canada

Comparison of computational methods for rectangular silencer insertion loss prediction

R. Ramakrishnan, R. Stevens, B. Howe

5-6
BAGPIPES-a program for analyzing acoustic transmission in ductwork

P. Fuchshuber, A. Craggs

7-8
PC. CIRCLE. Circular duct silencer performance prediction software

R. Ramakrishnan, N. Ball

9-10
Effect of the bulkhead fixing on the noise inside the airplane cabin

L. Cheng, J. Nicols

11-12
Optimum positioning of duct silencers in sound-rated construction

M.Q. Wu, T. Paige, D.L. Allen

13-13
Acoustic pulsations in reciprocating machinery

B.C. Howes, S.D. Greenfield, C.K. Schuh

15-16
Simulation of the orifice gauge line effect in pulsating flow

W.M. Jungowski, G. Petela

17-18
Reverberation chamber measurement of theatre chair absorption

J.S. Bradley

19-20
Modern acoustic measurements on Canadian stages

J.P.M. O'Keefe, M. Bracken

21-22
A comparison of subjective speech intelligibility tests in reverberant environments

K. Kruger, K. Gough, P. Hill

23-24
Modern and ancient theatres, symphony halls, recording for large places-use of the Rasti index and initial reverberation time to analyze architectural acoustics problems

J.-G. Migneron, C. Martel

25-26
Acoustic Strategy: Public Works Canada

G.E. Clunis

27-28
Numerical methods for solving acoustic radiation problems

L.J.J. Cremers, K.R. Fyfe

29-30
Vibro-acoustic behavior of a plane radiator in the case of impact excitation

D. Trentin, F. Laville

31-32
Simulation of the acoustic radiation emitted by vibrating structures

J. Nicolas, A. Berry, D. Trentin, F. Laville

33-34
Acoustic augmentation of the entrainment coefficient of axisymmetric free air jets

P.J. Vermeulen, P. Rainville, V. Ramesh, Keung Yu Wai

35-36
Experiments on active power minimisation

M.E. Johnson, S.J. Elliott

37-38
Electromagnetic acoustic noise and vibrations of electrical machines; their production and means of reduction

S.P. Verma, A. Balan

39-40
Symphonic bells of `fantastic' proportion

D. Caswell

41-41
Progress on the development of standards for sound intensity measurements

G. Krishnappa

43-43
Electroacoustical research and acoustical calibrations at INMS

G.S.K. Wong

44-44
Consequences of Nyquist theorem for acoustic signals stored in digital format

M. Roland-Mieszkowski, W.R. Young

45-46
Digital generation of the high quality periodic audio signals with the aid of a D/A converter and computer

M. Roland-Mieszkowski

47-48
Rock-drill handle vibration: measurement and hazard assessment

S.E. Keith, A.J. Brammer

49-50
Subsynchronous vibration of an auxiliary turbine

B. Alavi, C. Hugh

51-52
Development of diesel generator isolation systems for low noise and vibration

G.E. Clunis, S.J. Bradley

53-54
Design Optimisation of High Speed Axially Loaded Ball Bearings of a Turbo-Pump

Behzad Alavi

55-56
Computed order tracking applied to vibration analysis of rotating machinery

E.D.S. Munck, K.R. Fyfe

57-58
Development of a polar intensity measurement technique and potential uses

J.-G. Migneron, P. Lemieux

59-60
Suggestions for change to ISO 9614

R.W. Guy, J. Li

61-62
Predicting acoustic radiation from coupled fluid/structure systems: a comparison of two computer codes

L.E. Gilroy, D.P. Brennan

67-68
Vibration and sound radiation of a double-plate system

A. Berry, F. Laville, J. Nicolas, D. Stredulinsky

69-70
Acoustic backscattering from cylinders: near-field corrections

D.M.F. Chapman, F.D. Cotaras

71-72
The effect of sediment layering on ocean bottom reflection loss

F. Desharnais

73-74
Comparison of noise exposure levels between workplaces

A. Behar

75-76
The effects of music technology on hearing: a case study of St. John's bars

S. DeLay, S. Hiscock, T. Koopmans, S. Lenser, E. Rizkalla, D. Tulk

77-78
Electroacoustical and real-ear comparisons of assistive listening devices

P.A. Dobbins, S.M. Douglas

79-80
Signal detection and speech perception with level-dependent hearing protectors

S.M. Abel, N.M. Armstrong, C. Giguere

81-82
Digital hearing aids-the way of the future

M. Roland-Mieszkowski, S.D. Clements

83-84
Update to Noise Control Directive ID 88-1

D. DeGagne, R. Wright

85-86
A proposal for a new federal regulation on noisy toys

T. Leroux, C. Laroche

87-88
Acoustical analysis of nasal resonance patterns in speech

A.P. Rochet, B.L. Rochet

89-90
Developmental aspects of second formant trajectories

M.M. Hodge

91-92
The role of phonetic context in the articulation of semivowels by preschool children

E.B. Slawinski

93-94
Representation of speech signals in the disordered peripheral auditory system

D.G. Jamieson, M.F. Cheesman, S. Krol

95-96
Discrimination of static and dynamic frequency changes by children and young adults

J.F. MacNeil, E.B. Slawinski

97-98
Acoustical cues in /r-w/ discrimination

L.K. Fitzgerald, E.B. Slawinski

99-100
A computer-driven program to improve speech perception and speech production skills

S. Rvachew

101-102
Computer modelling of lexical tone perception

Chen Fangxin, A.J. Rozsypal

103-104
Effect of consonant and vowel context on Mandarin Chinese VOT: production and perception

B.L. Rochet, Fei Yanmei

105-106
A demisyllable-based text-to-speech synthesis system for English

S.J. Eady, P. Ollek, J.R. Woolsey

107-108
Canadian-designed software for speech analysis and synthesis

B.C. Dickson, A.G. Wynrib, R.C. Snell, S.J. Eady, J.A.W. Clayards

109-110
An IMELDA based voice recognition system: a step towards effective voice recognition for persons with severe disabilities

G.E. Birch, D.A. Zwierzynski, C. Lefebvre, D. Starks

111-112
Hierarchical nonstationarity in a class of doubly stochastic models with application to automatic speech recognition

L. Deng

113-114
Exploiting pauses in continuous speech recognition

D. O'Shaughnessy

115-116
A nonlinear analysis for clean and noisy speech

J. Rouat, Chun Liu Yong, S. Lemieux

117-118

Vol. 19 No. 4 (1991)

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Proceedings of the Acoustics Week in Canada

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