background noise

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background noise

A student tries to study while background noise comes from the street.

Definition

Noun: 1. Extraneous or unwanted sound present in an environment: This refers to any ambient, non-essential sounds that are part of an acoustic setting but are not the primary sound of interest. It is often considered a disturbance or interference. 2. A constant or persistent low-level sound: This can describe a continuous, often unnoticed, auditory backdrop to a situation or activity.

Usage
  • Background noise is typically used as a non-count noun. It refers to the general ambient sound, not individual sounds.
  • It is commonly discussed in contexts like audio recording, communication, and environmental acoustics where distinguishing a primary signal from surrounding sound is important.
Examples
  • The background noise of the cafe made it difficult to hear our conversation.
  • Audio engineers use filters to reduce background noise in podcasts.
  • I find the gentle background noise of rain helps me sleep.
  • There was too much background noise on the phone line, so I called her back.
Advanced Usage
  • Signal-to-noise ratio: A technical term often used alongside background noise. It describes the relationship between the desired signal (e.g., a voice) and the level of background noise. A high ratio means the signal is clear; a low ratio means the noise is problematic.
  • Acoustic backdrop: A more descriptive synonym that emphasizes the environmental and constant nature of the sound.
Variants and Related Words
  • Ambient noise: A very close synonym, often used interchangeably. It emphasizes sound that is present in an environment.
  • White noise / Pink noise: Specific types of constant, even background noise often used to mask other disruptive sounds or to aid concentration or sleep.
  • Interference: A broader term that includes background noise but can also refer to non-acoustic disruptions (e.g., radio static, electronic distortion).
Synonyms
  • Ambient sound
  • Hubbub (specifically for noise from a crowd)
  • Hum (specifically for a low, continuous sound)
  • Racket (implies loud, disturbing noise)
Antonyms
  • Silence
  • Quiet
  • Signal (in a technical context, as the desired sound opposed to noise)
Related Phrases
  • Drown out the background noise: To overcome or mask the ambient sound.
    • She turned up the music to drown out the background noise from the street.
  • Fade into the background noise: To become an unnoticed or insignificant part of the general sound environment.
    • After a while, the construction sounds faded into the background noise.
background noise

A student tries to study while background noise comes from the street.

Noun
  1. extraneous noise contaminating sound measurements that cannot be separated from the desired signal

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