Modulated Noise Reference Unit

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MNRU redirects here. It can also refer to the United Revolutionary Nationalist Movement.

Modulated Noise Reference Unit (MNRU) is an ITU standard (ITU P.810).[1] The MNRU is, as the name implies, a noise model that utilizes speech as well as noise as input. The modulated output noise is a result of a combination of the input speech and noise, where the input speech is used to modulate the input noise.[2] MNRU is mainly used in the telecommunication industry. MNRU is also sometimes referred to as Schröder Noise.


  1. ^ [1] ITU-T Recommendation P.810 (02/96), "Modulated noise reference unit (MNRU)"
  2. ^!!PDF-E&type=items