Use of Telephones in Noisy Areas

Satisfactory, difficult and impossible noise levels for telephone use in noisy areas.

Related Topics

• Acoustics

  Room acoustics and acoustic properties. decibel A, B and C calculations. Noise Rating (NR) curves. Sound transmission through walls. Calculate sound pressure, sound intensity and sound attenuation.

Related Documents

• Decibel

  Logarithmic unit used to describe ratios of signal levels - like power or intensity - to a reference level.

• Noise Criterion vs. Noise Rating and dB(A)

  Comparing Noise Criterion (NC, NCB, RNC) to Noise Rating (NR) and dB(A).

• SIL - the Speech Interference Levels

  Background noise frequencies that interferes with speech.

• Sound Power

  Sound power from sources like fans, jet engines, cars, humans and more.

• Sound Pressure

  Sound Pressure is the force of sound on a surface perpendicular to the propagation of sound.

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