Sub-bass pattern effects @ 30-70 Hz

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Discussion Overview

The discussion centers around the effects of sub-bass frequencies in the 30-70 Hz range, particularly in relation to visual patterns produced in mediums like water or sand. Participants explore the physical properties of sound waves, their interaction with environments, and the implications for artistic representation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant seeks information on the visual patterns created by sub-bass frequencies in various mediums.
  • Another participant notes that the effects of sub-bass waves on the body could be relevant, suggesting a potential crossover into biological effects.
  • A participant explains that the wavelength of sound waves in the 30-70 Hz range is significant, with a 30 Hz wave having a wavelength of about 36 feet and a 70 Hz wave around 16 feet.
  • It is suggested that the patterns produced by sub-bass waves would depend on the shape and properties of the room, indicating that interference patterns and absorption rates also play a role in how sub-bass is experienced in different areas.
  • Participants discuss the resonance of floors, walls, and ceilings as factors influencing the distribution of sub-bass within a space.

Areas of Agreement / Disagreement

Participants generally agree that the physical environment significantly influences the effects of sub-bass frequencies, but there is no consensus on specific visual patterns or biological effects, leaving some questions unresolved.

Contextual Notes

The discussion does not resolve the specific visual manifestations of sub-bass frequencies or the biological implications of sound wave interaction with the body. Additionally, the assumptions regarding room properties and sound wave behavior remain unexamined.

Nelson Cruz
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I'm working on some paintings about the effects of sub-bass in the 30-70hz range.
I've been trying, without success, to find info online about the likely pattern effects it could produce, say in water or sand, or anything that its wave patterns would show up in. Any clues anyone?

Also, bearing in mind that I have pretty much zilch physics knowledge, I also realized that I don't have a clue about how to work out what physical distance a single sub-bass wave would cover, Any simple hints on how to do that would be greatly appreciated.
 
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Oh and also, although this should probably go into the biology forum, what happens when the waves hit the body, how are the waves affected.
 
The patterns will depend heavily on the room shape and properties, so there's nothing really specific that can be said about that. As for the wavelength, the speed of sound at normal conditions is around 1100 feet per second, so a 30Hz wave will have a wavelength of around 36 feet. A 70Hz wave will be more like 16 feet. Because of this long wavelength, the patterns that would show up (if you had a sufficiently loud wave) would only really manifest in large areas.
 
Thanks for that.

I guess that explains why some parts of a room exhibit more sub-bass than others then, not just related to distance from the speakers, because of interference patterns and different absorbstion rates??
 
Nelson Cruz said:
Thanks for that.

I guess that explains why some parts of a room exhibit more sub-bass than others then, not just related to distance from the speakers, because of interference patterns and different absorbstion rates??

Yes that's right. Also floors, walls, and ceilings may resonate.
 

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