This book explores the life and scientific legacy of Manfred Schroeder through personal reflections, scientific essays and Schroeder"s own memoirs. Reflecting the wide range of Schroeder"s activities, the first part of the book contains thirteen articles written by his colleagues and former students. Topics discussed include his early, pioneering contributions to the understanding of statistical room acoustics and to the measurement of reverberation time; his introduction of digital signal processing methods into acoustics; his use of ray tracing methods to study sound decay in rooms and his achievements in echo and feedback suppression and in noise reduction. Other chapters cover his seminal research in speech processing including the use of predictive coding to reduce audio bandwidth which led to various code-excited linear prediction schemes, today used extensively for speech coding. Several chapters discuss Schroeder"s work in low-peak factor signals, number theory, and maximu
m-length sequences with key applications in hearing research, diffraction gratings, artificial reverberators and de-correlation techniques for enhancing subjective envelopment in surround sound. In style, the articles range from truly scientific to conversationally personal. In all contributions, the relationship between the current research presented and Manfred Schroeder"s own fields of interest is, in general, evident. The second part of the book consists of Schroeder"s own memoirs, written over the final decade of his life. These recollections shed light on many aspects not only of Schroeder"s life but also on that of many of his colleagues, friends and contemporaries. They portray political, social and scientific events over a period that extends from pre-war to the present. These memoirs, written in an inimitable and witty style, are full of information, entertaining and fun to read, providing key insight into the life and work of one of the greatest acousticians of the 20th
century.
PrefacePart I: Scientific ChaptersChapter 1: Spatial Audio and Room Acoustics by Joshua Atkins and James WestChapter 2: The Early History of Ray Tracing in Acoustics by Asbjørn Krokstad, U. Peter Svensson, and Svein StrømChapter 3: Advanced Room-Acoustics Decay Analysis by Ning XiangChapter 4: Estimating the cross-over time within room impulse responses by Guillaume Defrance and Jean-Dominique PolackChapter 5: Are impulse responses Gaussian noises? by Jean-Dominique PolackChapter 6: Recent applications of number-theoretic sequences in audio and acoustics by Ning Xiang, Bosun Xie and Trevor J. CoxChapter 7: Where mathematics and hearing science meet: Low peak factor signals and their role in hearing research by Armin Kohlrausch and Steven van de ParChapter 8: Neurally-based acoustic and visual design by Yoichi Ando and Peter CarianiChapter 9: Manfred R. Schroeder:A personal memoir, Optimizing the reflection phase grating by Peter D"AntonioChapter 10: Manfred R. Schroede
r: Challenge the present and there is a better way by Bishnu S. AtalChapter 11: Transducer Research at Bell Laboratories under Manfred Schroeder by Gerhard M. SesslerChapter 12: Manfred Schroeder and Acoustical Impedance by Roland Kruse and Volker MellertChapter 13: Research on Underwater Acoustics in Göttingen by Dieter GuickingPart II: The Memoirs of Manfred R. SchroederChapter 14: Right TurnsChapter 15: School YearsChapter16: July 1943Chapter 17: RadarChapter 18: Lucky BreaksChapter 19: The University of GöttingenChapter 20: Bell LaboratoriesChapter 21: The KGBChapter 22: Professor of PhysicsChapter 23: The German LanguageChapter 24: Retirement and BeyondChapter 25: The Year 2006Appendix: Bibliography of Manfred R. Schroeder"s PublicationsIndex