I would like to start a discussion involving how sound works.

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SUMMARY

This discussion centers on the mechanics of sound propagation, specifically the phenomenon that low-frequency sound waves travel farther than high-frequency waves. Participants clarify that while all sound waves travel at the same speed in an ideal gas, higher frequencies experience greater attenuation, leading to a quicker drop in intensity over distance. The conversation also touches on the relationship between sound pressure, amplitude, and perceived loudness, emphasizing that energy is related to amplitude rather than frequency. Key resources include Wikipedia articles on sound waves and sound intensity.

PREREQUISITES
  • Understanding of sound wave properties, including frequency and amplitude.
  • Familiarity with sound attenuation principles, particularly Stokes' Law.
  • Basic knowledge of decibels and sound pressure levels.
  • Awareness of sound propagation in different mediums.
NEXT STEPS
  • Research "Stokes' Law and sound attenuation" for deeper insights into frequency effects.
  • Study "Sound intensity and energy density" to understand the relationship between pressure and amplitude.
  • Explore "Acoustic wave reflection and interference" to learn about sound behavior in various environments.
  • Investigate "The physics of sound in different mediums" to comprehend how sound travels through air, water, and solids.
USEFUL FOR

Acoustics enthusiasts, audio engineers, sound designers, and anyone interested in the physics of sound propagation and its practical applications.

  • #91


jarednjames said:
You are describing a water wave as a sine wave - transverse wave. Sound is not a transverse wave and so you can't describe it the same way as water is displaced in peaks and troughs.

You can describe sound as it would be represented as a sine wave but can't compare the motion of water molecules to air particles.

Are you going to respond or are we finished here? I'm not impatient I just thought you were wating for me to ask another question cause I was asking for clarification on my last comment.
 
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  • #92


Ok here is what I know so far sound is a pressure wave which is molecules vibrating back and forth and the wave is measured by the distance between two compressed or expanded areas.

Correct
Whats the next logical step before I can understand attenuation of different frequencies?

As per pythagoreans response.
 
  • #93


jarednjames said:
Correct


As per pythagoreans response.

Well I mean can you explain it or are you telling me to read a book on it? I want to keep it simple right now.
 

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