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Titlebook: Engineering Acoustics; An Introduction to N Michael M?ser Textbook 20092nd edition Springer-Verlag Berlin Heidelberg 2009 Wave.environment.

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31#
發(fā)表于 2025-3-27 01:00:46 | 只看該作者
Sound absorbers, example, it is necessary to prevent noise emitted by machinery from travelling to areas further away via reflections; one is interested in obtaining a sufficiently high absorption at the walls. On the other hand, the sound for audiences in auditoria like studios or concert halls must be enhanced by
32#
發(fā)表于 2025-3-27 03:22:03 | 只看該作者
Fundamentals of room acoustics,epends on the room volume and the room’s interior design; the reverberation time is short in small rooms and in rooms which have large absorbing surfaces. Large volumes with less absorption have reverberation times which can easily extend to a couple of seconds. During a period of 2?s, for instance,
33#
發(fā)表于 2025-3-27 08:29:23 | 只看該作者
34#
發(fā)表于 2025-3-27 10:46:11 | 只看該作者
35#
發(fā)表于 2025-3-27 14:07:55 | 只看該作者
36#
發(fā)表于 2025-3-27 20:17:30 | 只看該作者
ntrol as well as fundamentals of signal and system theory.No‘Engineering acoustics‘ is a teaching textbook that can serve as a tool for self-study and as a compendium for lectures as well. One of the author‘s goals is not only to describe how the topic develops but also why a specific way is chosen.
37#
發(fā)表于 2025-3-27 23:57:09 | 只看該作者
38#
發(fā)表于 2025-3-28 05:18:48 | 只看該作者
Strategiebereiche der Arbeitsmarktpolitik sound damper channels, walls, elastic bearings. All of these constructions transmit a time-dependent stimulus signal and in the process, change the signal. As transmitters are often referred to as ‘systems,’ this chapter could otherwise be titled ‘The Basics of System Theory’.
39#
發(fā)表于 2025-3-28 06:53:35 | 只看該作者
40#
發(fā)表于 2025-3-28 12:13:20 | 只看該作者
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