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Online Noise Criterion - NC - Calculator

An online Noise Criterion - NC - Calculator

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The calculator below can used to calculate the NC - Noise Criterion:

Sound Pressure Level (dB) - Octave band mid-frequency (Hz)

63 Hz (upper limit 83 dB)

125 Hz (upper limit 79 dB)

250 Hz (upper limit 75 dB)

500 Hz (upper limit 72 dB)

1000 Hz (upper limit 71 dB)

2000 Hz (upper limit 70 dB)

4000 Hz (upper limit 69 dB)

8000 Hz (upper limit 68 dB)

The NC-diagram with the default values above are indicated below:

nc - noise criteria - example

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Related Topics

  • Acoustics Room acoustics, acoustic properties - decibel A, B and C - Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity, attenuation and more ..
  • Noise and Attenuation Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems

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