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Loudspeaker question

Discussion in 'Question of the Day' started by derekleffew, Oct 27, 2008.

  1. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    From avare:
     
  2. avkid

    avkid Not a New User Fight Leukemia

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    At what frequency are we measuring?
    :twisted:
     
  3. avare

    avare Active Member

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    My apologies. I suggested the question and forgot a key point with regards to frequency. The speaker is much smaller than the wavelength of the frequency being produced, so it is acting as a point source.

    Andre
     
  4. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    Is it even possible for "all sound from a speaker to radiate equally in all directions"? Would this be akin to measuring the output bare light bulb without a reflector where the spherical surface area, 4∏r^2, comes into play?
     
  5. avare

    avare Active Member

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    When the size of the speaker is small (less than 1/4 of the wavelength is one standard used in physics texts) then yes, all sound will radiate equally in all directions. The intent of the question is that the speaker is a point source, so the speaker surface area does not come into play.

    That gives an idea for another question in the future. Thanks!

    Andre
     
    Last edited: Oct 27, 2008

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