Subaudible: meaning, definitions and examples

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subaudible

 

[sʌbˈɔː.də.bəl ]

Definition

Context #1 | Adjective

sound perception

Subaudible refers to sounds that are below the threshold of audibility for the human ear. These sounds cannot be consciously heard but can still influence thoughts and behaviors, often studied in psychology and acoustics.

Synonyms

imperceptible, inaudible, unheard.

Examples of usage

  • The subaudible frequencies were used in the audio experiment.
  • Some advertisements use subaudible messages to persuade viewers.
  • He recorded subaudible tones to test their effects.
  • The subaudible background noise was barely noticeable but impactful.

Interesting Facts

Etymology

  • The word combines 'sub-' meaning 'below' and 'audible', which stems from the Latin 'audire' meaning 'to hear'.
  • It first appeared in English literature around the early 20th century, reflecting advancements in audio technology.

Psychology

  • Some studies suggest that subaudible sounds can influence moods or behaviors without conscious awareness.
  • This phenomenon is often exploited in advertising, where very low sounds are used to subtly attract attention or promote a message.

Science

  • Subaudible frequencies typically refer to sounds below 20 Hz, the lower limit of human hearing, commonly found in nature.
  • Certain animals, such as elephants, use subaudible infrasound for communication over long distances, which humans cannot perceive.

Music

  • Some music genres, like ambient and drone music, often incorporate subaudible frequencies to create an immersive experience.
  • Artists have experimented with subaudible sounds, exploring how they affect the listener’s perception and emotional response.

Technology

  • In audio engineering, subaudible signals are used in techniques like subliminal messaging, where messages are hidden within other sounds.
  • Devices such as subwoofers produce bass sounds that can explore frequencies near the subaudible range, enhancing the listening experience in music and film.