diffraction - DIFFRACTION OF SOUND : bending around...

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DIFFRACTION OF SOUND : bending around obstacles or through opening Depends on size comparison (wavelength to opening; if opening is the same or smaller not diffract) Fig. 2 - Diffraction of Sound Waves A. Small objects present no barrier to soundwaves that have a wavelength longer than the object's facing side B. Larger objects shadow frequencies with a wavelength shorter than the object's side facing however, longer wavelengths begin to diffract/bend in behind the object. C. A small gap between acoustic spaces cause the soundwaves to be re-radiated as a 'new' point source of sound. D. Larger gaps between acoustic spaces are no obstacle to the soundwaves and diffraction occurs, lower frequencies bend around the edges of the gap, higher frequencies may be shadowed. Diffraction of sound waves is commonly observed; we notice sound diffracting around corners or through door openings, allowing us to hear others who are speaking to us from adjacent rooms. . If they did not, we would not be able to hear sounds
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diffraction - DIFFRACTION OF SOUND : bending around...

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