Modulated Noise Reference Unit

"MNRU" redirects here. For another use, see 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.

References

1. http://www.itu.int/rec/T-REC-P.810/en ITU-T Recommendation P.810 (02/96), "Modulated noise reference unit (MNRU)"
2. http://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-P.810-199602-I!!PDF-E&type=items ^{[bare URL PDF]}