In This Issue
Noise Engineering
September 1, 2007 Volume 37 Issue 3
Articles In This Issue
  • Saturday, September 1, 2007
    AuthorGeorge C. Maling Jr.

    Editor’s Note

    Noise is a problem in our society, as well as a global environmental problem, that has significant adverse effects on health and the quality of life. Today, there is a substantial gap between the present level of noise and a reasonably quiet environment—in cities, ...

  • Saturday, September 1, 2007
    AuthorWilliam W. Lang and George C. Maling Jr.

    Noise can be controlled at the source, along its path, or at the location of the receiver.

    The Source-Path-Receiver Model
    For a systems approach to the technological issues of noise reduction, the source-path-receiver model, which has been in use for many years, can provide a helpful starting ...

  • Saturday, September 1, 2007
    AuthorRichard H. Lyon and David L. Bowen

    New technologies can lead to quieter mechanisms and materials or unexpected, unpleasant sounds.

    Sounds made by products can be either pleasing or annoying. Sounds are pleasing when expectations are met and the decision to acquire the product is reinforced (e.g., the familiar sound of a car door ...

  • Saturday, September 1, 2007
    AuthorIan A. Waitz, Robert J. Bernhard, and Carl E. Hanson

    Noise is a major driver in the design and operation of transportation systems.

    There are only a few places in the United States where transportation noise is not noticeable.1 Figure 1 shows the results of an analysis estimating the percentage of each county in the United States where highway, ...

  • Saturday, September 1, 2007
    AuthorRobert D. Bruce

    When purchasing equipment, industry leaders often fail to take into account the risk to hearing.

    Millions of workers in the United States are exposed to sound levels that are likely to cause permanent hearing loss, even though many of them wear hearing-protection devices. Many people do not ...