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The phenomenon of sound diffraction originates when certain sound waves come to surround an obstacle that they get in their way, but also occurs when these waves manage to pass through a small hole, of course, it is important to note that the development of sound diffraction will depend on the relationship between the wavelength of these sound rays and the size of the obstacle or hole, the above aspects will depend on the diffraction of certain sound waves and this can take place either within an enclosure or outside it. The sound waves that reach our ears propagate in any direction, any sound when emitted from a particular source and then travel through the material or elastic medium such as air will usually find on its way with certain obstacles and they cause other intrinsic phenomena to be carried out to this propagation and among which we have already analyzed the phenomenon of reflection, absorption and transmission, and this time we will analyze in general the phenomenon of sound diffraction. First of all my respectful greetings to all the academic community of #Hive.blog, we continue with expanding the knowledge related to the essential phenomenon of sound.