so just how loud is 50 db???

Discussion in 'The BS Topic' started by 67lemanster, Oct 1, 2007.

  1. 67lemanster

    67lemanster Veteran Member Lifetime Gold Member

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    I AM ILK
  2. EricsZ28

    EricsZ28 Veteran Member Lifetime Gold Member

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    Here and there...
    It's a little quieter than normal conversation.

    This web site gievs some relative noise levels at various dB levels: http://www.jimprice.com/prosound/db.htm

    The above link points out that normal conversation as heard by your ear at 3M (10') is about 50 dB.
     
    Last edited: Oct 1, 2007
  3. Nate81camaro

    Nate81camaro Veteran Member

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    lost
    Here's a chart I found on a quick Google search. Seems that 50db is pretty normal.
    [​IMG]



    My little brother's has a friend who has a really good system in his ranger (two Juggernaut 15" subs, dont' remember what else) and he hit 153db playing Slayer. When I sat in it he didn't even turn it halfway up, and it felt like I was talking through a fan.
     
    Last edited: Oct 1, 2007
  4. Twisted_Metal

    Twisted_Metal Moderator Staff Member Lifetime Gold Member

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    Loudness is a human perceived level of sound.
    For every 10 db increase, a person will perceive the sound as twice as loud.

    That being said... It also depends upon the frequency. (inverse function of wavelength)

    A tone of 40 hertz will not even be audible until it is around 70 db in volume. Tones closer to the frequency of human speech (the range where our ears are most sensitive) are audible at a much lower volume.

    To answer your question.... How loud is 50 db?
    Here's a comparitive chart:

    20 dB - Ticking watch
    30 dB - Quiet whisper
    40 dB - Refrigerator hum
    50 dB - Rainfall
    60 dB - Sewing machine
    70 dB - Washing machine
    80 dB - Alarm clock (two feet away)
    85 dB - Average traffic
    95 dB - MRI
    100 dB - Blow dryer, subway train
    105 dB - Power mower, chainsaw
    110 dB - Screaming child
    120 dB - Rock concert, thunderclap
    130 dB - Jackhammer, jet engine plane (100 feet away)
     
  5. 67lemanster

    67lemanster Veteran Member Lifetime Gold Member

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    I AM ILK
    so a silencer/supressor on a .223 with a db of 40-50 is pretty quiet? :)
     
  6. EricsZ28

    EricsZ28 Veteran Member Lifetime Gold Member

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    Here and there...
    It sure would be - Kind of liked a muffled fart :)
     
  7. K5JMP

    K5JMP Veteran Member Lifetime Gold Member

    if it's a good one, yes...
     
  8. 67lemanster

    67lemanster Veteran Member Lifetime Gold Member

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    I AM ILK
    gemtech halo. which is what is in the video. ;)
     
  9. Gary S

    Gary S Administrator Lifetime Gold Member

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    Apr 14, 1999
    Bismarck, North Dakota
    50db
    That is about the sound level that some of us Old Farts can hardly hear anymore after years of abusing our ears.:D
    What did he say? I can't hear you.
     
  10. John Wright

    John Wright Veteran Member Lifetime Gold Member

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    Rustburg, Va
    well, no more half loaded .22's...poor squirrels won't know what hit them.
     

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