Sound Effects: A Look Into The Past*

The following article should be of particular interest to American radio broadcasters and producers. Based upon a visit by the author to Moscow in 1958, it details the methods used by the North American Service of Radio Moscow in producing a wide variety of programs with an extremely small staff. Of special note is the practice of using the program producer as his own tape recording engineer, and the “make and remake”; method of editing programs as they are being recorded.     

Australian and British Media

Outside Interference: The Politics of Australian Broadcasting (South Melbourne: Macmillan Co. of Australia, 1979—A$6.95, paper)

Susan Kippax and John P. Murray's Small Screen, Big Business: The Great Australian TV Robbe (Angus & Robertson Publishers, P.O. Box 290, North Ryde, N.S.W. 2113—A$1.95, paper)

Comparing Theatre and Film: A Contemporary:View, by Jeff Peck (22 pp., A$2.00, paper)

Newspaper Circulation in Australia, 1932-1977, by Murray Coot (33 pp., A$2.50, paper)

Patricia Edgar and Ursula Callus' The Unknown Audience: A Study of Children's Responses to Television Programmes (Media Centre, School of Education, La Trobe University, Bundoora, Vic. 3083, Australia—A$4.00 1 paper)

Children's Television Behaviour by Kevin Sharman (Australian Council for Educational Research, Frederick St., Hawthorn 3122—A$5.00)

Cinema Papers No. 20 and 21 (bimonthly from 664 Victoria St., North Melbourne 3051—A$19.80 per year by air)

The Social and Cultural im acts of Transnational Enter rises by Krishna Kumar (Transnational Corporations Project, Department of Economics, Yniversity of Sydney, Sydney 2006—A$10.00)     

Indicators for arts and cultural policy: A Global perspective

Taking an international view of cultural indicators, this paper is an account of the state of play of indicator development. It reviews the literature on cultural indicators, raising analytical and global coordination issues, and adapts ‘good practice’ ideas from the literature. It is argued that improving cultural indicators is not simply about improving statistical methods: it is also about understanding better the nature of arts activities, improving the articulation of arts policies and considering the complex interrelationships between statistics and policy and the impacts that measurement can have on ‘stakeholders’ in the arts and cultural sectors.     

Single landmark feedback-based time optimal navigation for a differential drive robot

In this paper, we propose a feedback-based control approach to execute the time optimal motion trajectories for a differential drive robot. These trajectories are composed of straight lines and rotations in place. We show that the evolution of the position of a single landmark over time, in a local reference frame, makes it possible to track a prescribed time-optimal robot’s trajectory, based on feedback of the landmark’s position. We also show that the closed-loop system is an exponentially stable one with a nonvanishing perturbation, and that globally uniformly ultimately boundedness of the tracking errors can be achieved. The two main results of this work are: 1) Our approach leverages visual servo control type of methods with tools from optimal control for executing time-optimal trajectories in the state space based on feedback information. 2) The approach is able to work with the minimum number of landmarks–only one–this represents a necessary and sufficientcondition for landmark-based navigation. Experiments in a physical robot, a nonholonomic differential drive system equipped with an omnidirectional laser sensor, are shown, which validate the proposed theoretical modelling.     

Stable bilateral teleoperation with phase transition and haptic feedback

Abstract: In this paper, the bilateral teleoperation with haptic feedback is studied under the phase transition between the constraint and unconstraint motions. The stability of the teleoperation with both force feedback and phase transition is proven by Lyapunov–Krasovskii method and hybrid systems theory. The conditions of the theory results are more general than the others, they are time-varying delays, nonlinear systems, force feedback, and phase transition. By using the admittance control, the application results illustrate the efficiency of the proposed control method.