Ambient noise


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Related to Ambient noise: background noise

ambient noise

[′am·bē·ənt ′nȯiz]
(acoustics)
The pervasive noise associated with a given environment, being usually a composite of sounds from sources both near and distant.

Ambient noise

The background noise level in a space, which is not identifiable as being from a specific source, such as a nearby piece of equipment.

ambient noise

The all-encompassing, average background noise associated with a given environment, often a composite of sounds from many sources near and far, of many different types, e.g., the general background noise in a neighborhood or in an auditorium.
References in periodicals archive ?
Analysis of Fluctuations in wind dependent Shallow water ambient noise spectrum, Fluctuation and Noise," J.
To document differences in spectra at individual places, two figures present this initial result from two-day experimental measurement of ambient noise.
Once ambient noise levels reach certain amplitude they can possibly cause the hearing threshold for one sound to be raised by the presence of another--the process known as masking (Richardson et al.
While this microphone captures the user's voice, a second microphone on the side facing away from the user targets ambient noise.
Quantity or scope: Measurement and analysis of ambient noise on the websites of SYVADEC
The device also includes many other performance-enhancing improvements, including low power consumption, rechargeable batteries, mechanical exclusion of ambient noise and a suction cup, so that it sticks firmly onto the patient's chest, Cheng said.
The basis of electronic ambient noise cancellation is destructive wave interference between the unwanted noise signal and a "cancellation" signal that is created to be equal in magnitude to the noise signal and opposite in phase to it.
The average ambient noise level in a tested classroom was 47 dBA.
The Noise Mapping England Project is part of the first stage of the development of a National Ambient Noise Strategy.
Here the whirring blades of a swarm of helicopters generate a symphony of ambient noise that alternates between lulling and grating.
In locating a space for a video teleconferencing facility, the most important consideration is the ambient noise level.
Historically, ultrasonic sensors weren't reliable, what with all the air valves and other ambient noise around an assembly plant.

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