Noise Criterion - NC - Online Calculator

An online Noise Criterion - NC - Calculator

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)

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The NC-diagram with the default values from above:

nc - noise criteria - example

Related Topics

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

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