Acoustics, Information, and Communication: Memorial Volume by Ning Xiang, Gerhard M. Sessler

By Ning Xiang, Gerhard M. Sessler

This e-book explores the lifestyles and medical legacy of Manfred Schroeder via own reflections, medical essays and Schroeder’s personal memoirs. Reflecting the wide variety of Schroeder’s actions, the 1st a part of the e-book comprises 13 articles written via his colleagues and previous scholars. issues mentioned contain his early, pioneering contributions to the certainty of statistical room acoustics and to the dimension of reverberation time; his advent of electronic sign processing tools into acoustics; his use of ray tracing tips on how to learn sound decay in rooms and his achievements in echo and suggestions suppression and in noise aid. different chapters disguise his seminal study in speech processing together with using predictive coding to minimize audio bandwidth which ended in a number of code-excited linear prediction schemes, this present day used broadly for speech coding. a number of chapters talk about Schroeder’s paintings in low-peak issue indications, quantity idea, and maximum-length sequences with key purposes in listening to examine, diffraction gratings, synthetic reverberators and de-correlation strategies for boosting subjective envelopment in encompass sound. well-liked, the articles diversity from actually clinical to conversationally own. In all contributions, the connection among the present learn offered and Manfred Schroeder’s personal fields of curiosity is, in most cases, glaring. the second one a part of the booklet comprises Schroeder’s personal memoirs, written over the ultimate decade of his existence. those reminiscences make clear many elements not just of Schroeder’s existence but in addition on that of lots of his colleagues, associates and contemporaries. They painting political, social and clinical occasions over a interval that extends from pre-war to the current. those memoirs, written in an inimitable and witty variety, are packed with info, pleasing and enjoyable to learn, offering key perception into the lifestyles and paintings of 1 of the best acousticians of the 20 th century.

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Additional info for Acoustics, Information, and Communication: Memorial Volume in Honor of Manfred R. Schroeder (Modern Acoustics and Signal Processing)

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Professor Manfred Schroeder has shown a great interest in this work [see Fig. 2]. This author soon found out [19, 20], however, if the model order is higher than one (double- or multiple-slope cases), initial value estimation becomes too critical to allow convergence. For this reason, the model-based Bayesian method, elaborated in 40 N. Xiang Fig. 3 Experimentally measured Schroeder decay curves at one specific source-receiver configuration. (a) Normalized Schroeder decay curves for a fixed upper limit of integration with its peak-to-noise ratio PNR ¼ 50, 54, and 58 dB, respectively.

A beam tracing method for interactive architectural acoustics. J. Acoust. Soc. Am. 115, 739–756 (2004) 35. : Room acoustic prediction based on a unified treatment of diffuse and specular reflection. J. Acoust. Soc. Am. 100, 899–909 (1996) 30 A. Krokstad et al. 36. : A combined beam tracing and radiant exchange computer model of room acoustics. Appl. Acoust. 38, 161–178 (1993) 37. : Treatment of early and late reflections in a hybrid computer model for room acoustics. J. Acoust. Soc. Am. 92, 2345 (1992) 38.

Sc. in physics from the University of Oslo in 1967. He worked at the ELAB/SINTEF in Trondheim with room acoustics research together with Dr. Krokstad until 1994. Sc. thesis on the ray-tracing technique, which paved the way for the paper by Krokstad, Strøm, and Sørsdal in 1968. Strøm has worked with room acoustical design throughout Norway, including many examples of passive and active variable acoustics installations. Together with Prof. Krokstad, he was the acoustical consultant for the concert hall in Trondheim, Olavshallen, which was opened in 1992.

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