Can a loud inaudible sound drown out audible noise?

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Discussion Overview

The discussion revolves around the question of whether a loud inaudible sound can effectively drown out audible noise. Participants explore the implications of sound perception, the nature of sound waves, and potential interpretations of the original question, considering both theoretical and practical aspects.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants propose that a powerful oscillation at one frequency requires more energy to make the same medium oscillate at another frequency, suggesting that a sufficiently powerful inaudible oscillation could influence audible noise.
  • Others argue that sounds are additive, implying that an inaudible sound cannot drown out an audible one.
  • One participant notes that atmospheric turbulence, which is mostly inaudible, can affect sound propagation, indicating a potential connection to the original question.
  • There is a suggestion that the original question may relate to noise-canceling headphones, though this interpretation is debated.
  • Another participant expresses uncertainty about the interpretation of the original question, suggesting it may involve disrupting sound from a distance rather than two sound sources in close proximity.

Areas of Agreement / Disagreement

Participants do not reach a consensus; multiple competing views remain regarding the nature of sound interaction and the interpretation of the original question.

Contextual Notes

There are limitations in the discussion regarding assumptions about sound propagation, the definitions of inaudible and audible frequencies, and the specific conditions under which sound interactions are considered.

ChromeBit
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To the best of my knowledge: a powerful oscillation at one frequency means more energy is required to make same medium oscillate at another frequency.

Since sound perception works by detection of air oscillation, could a sufficiently powerful oscillation at an inaudible frequency (to humans) hearing drown out any audible noise?
 
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I do think there may be some merit to the OP's input. Even atmospheric turbulence, basically inaudible, can adversely affect the propagation of sound. I have limited expertise in this area, but I think the OP's post deserves further consideration.
 
ChromeBit said:
To the best of my knowledge: a powerful oscillation at one frequency means more energy is required to make same medium oscillate at another frequency.

Since sound perception works by detection of air oscillation, could a sufficiently powerful oscillation at an inaudible frequency (to humans) hearing drown out any audible noise?

Are you asking about noise canceling headphones?
 
anorlunda said:
Are you asking about noise canceling headphones?
The OP needs to respond, but I interpreted the question to be that of trying to quiet a sound that originated from faraway by disrupting the atmosphere between the source and the listener with acoustical sources that are inaudible.
 
Charles Link said:
Even atmospheric turbulence, basically inaudible, can adversely affect the propagation of sound.
Charles Link said:
The OP needs to respond, but I interpreted the question to be that of trying to quiet a sound that originated from faraway by disrupting the atmosphere between the source and the listener with acoustical sources that are inaudible.

I suspect that is the wrong interpretation ... that's just a displacement of the sound wave

yes he does to clarify @ChromeBit ?his OP reads like 2 sound sources side by side ( or at least in close proximity) ...
will the hi level low and inaudible low freq one drown out the audible one ??

Dave
 

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