Architectural Acoustics Illustrated by Michael Ermann

By Michael Ermann

Unite the technological know-how of sound and the foundations of layout to reinforce any space

Architectural Acoustics Illustrated interprets the quantitative and qualitative content material of acoustics into the picture language of structure. This highly-visual consultant comprises over 350 illustrations that define the physics of sound and the simplest layout practices for proscribing or mitigating noise in structures through the use of the most recent in fabrics and methods. each one bankruptcy contains a precis record of layout guidance to aid hinder errors and oversights, and the Instructor's site deals video animations demonstrating acoustical innovations. Designed as a "first glance" on the interplay of sound and area, the ebook explains the rules of architectural acoustics and their functional purposes, offering a complete consultant for designing with acoustics in mind.

Architectural acoustics is greater than simply live performance halls – it could be sure development placement, department of inside area, external development, or even siting. while addressed early within the layout technique, the ensuing house will be freed from undesirable sound and advertise reliable listening to; if left unaddressed, the issues with the distance may end up in proceedings and expensive post-construction remediation. Architectural Acoustics Illustrated is helping designers resolve such a lot acoustical difficulties upfront, via allowing readers to:

  • Understand the actual technological know-how underlying the habit of sound
  • Consider the interactions of sound and house within the preliminary layout approach
  • Mitigate construction sounds equivalent to these produced by way of HVAC and plumbing with early layout planning
  • Design areas for listening, and include acoustics top practices into each plan

The hugely visible structure of the e-book is helping readers snatch complicated techniques speedy, and thorough dialogue of every concept's real-world program ties the technological know-how without delay into the layout strategy. All layout execs must have a primary knowing of acoustics, and Architectural Acoustics Illustrated is a accomplished, useful advisor in an easy-to-read structure.

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23 Basic Theory Sound Level Data Source Outside Highway at 50 ft (15m) Highway at 200 ft (60m) Primary road at 50 ft (15m) Primary road at 200 ft (60m) Large cooling tower at 50 ft (15m) Small cooling tower at 50 ft (15m) Truck reverse beep Car starting Car alarm Basketball dribble Bus idling Loud car radio Car idling Ambient rain noise Ocean wave, water’s edge Inside Movie theater Slammed door Vacuum Beneath wood stairs Alarm clock buzzer Elementary school cafeteria Hair dryer Toilet flushing Television Acoustic guitar Cell phone ring Faucet Restaurant with music Normal conversation Door closed normally Oven exhaust fan Boiling water Dehumidifier Small heat pump Microwave Noisy refrigerator Office with computers Noisy diffuser Water pipes from adjacent wall dBA Absorption Coefficient (Hz) 63 125 250 500 1000 2000 4000 Hz Hz Hz Hz Hz Hz Hz 78 66 64 51 63 61 94 92 90 87 81 74 69 63 54 78 70 67 63 69 68 82 90 55 90 83 73 81 72 62 78 69 63 57 62 65 78 81 51 91 83 77 81 63 60 75 62 60 48 56 56 77 80 70 82 80 73 67 58 54 73 59 57 42 54 55 76 86 79 79 73 73 62 56 51 75 63 61 47 55 57 94 87 78 82 78 69 61 56 49 69 60 58 45 57 53 66 86 82 81 73 66 57 56 45 62 52 50 38 58 52 63 86 87 77 67 52 53 57 42 103 90 84 83 81 81 81 81 76 74 74 73 69 68 66 64 58 57 54 52 51 48 47 42 125 98 63 84 43 62 80 49 58 62 48 46 71 47 70 43 50 53 60 38 56 55 54 51 113 87 72 91 39 61 76 65 70 75 55 50 69 53 66 43 54 55 59 47 49 52 50 50 100 86 70 83 63 68 71 86 74 79 54 50 66 54 64 55 58 56 55 55 57 51 47 44 95 86 79 78 81 75 75 81 70 71 52 56 66 36 59 63 52 56 49 51 49 45 43 39 90 86 76 74 74 79 77 70 69 67 70 57 66 66 60 61 52 52 47 46 40 42 42 33 92 83 80 75 74 75 74 66 72 62 67 68 60 56 58 51 52 49 47 39 34 37 40 32 89 75 76 73 66 68 75 62 64 54 69 69 52 52 60 46 49 44 41 30 30 30 35 29 Sound Absorption 26 Principles of Absorptive and Reflective Surfaces AV Content Online Architectural Acoustics Illustrated Sound Absorption 27 Absorption Coefficient We use the absorption coefficient (α), a number between zero and one, to describe the sound‐ absorbing quality of a surface and to quantify the proportion of incident sound energy that does not return to the room in the form of a reflection.

Long, M. 2006. Architectural Acoustics. Elsevier. Burlington, MA, pp. 235–284. Mariner, T. ” Noise Control, July 1957. Moore, J. and R. West. ” Journal of the Acoustical Society of America, December 1970. Moulder, R. and J. ” Sound and Vibration, October 1983. Newell, P. 2011. Recording Studio Design. Focal Press. Oxford, pp. 98–110. Purcell, W. ” Sound and Vibration, July 1982. Siekman, W. ” Journal of the Acoustical Society of America, October 1969.

Bats chirp well above the human frequency perception threshold, in frequencies that high can’t be heard by human beings. ) For the entire frequency range of human hearing, wavelengths are at the scale of architecture. This is important because when sound rays impinge on surfaces that are much longer than their wavelengths, they reflect in something approaching a ray; when they impinge upon surfaces that are much smaller than they are, they move right around them, like an ocean wave moving around a swimmer.

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