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Sound level meters help

Discussion in 'Home Cinema Speakers' started by simonrad, Mar 24, 2005.

  1. simonrad

    simonrad
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    Does anyone have any advice on sound level meters?
    Do analogue do the job as well as digital
    What range is needed for 5.1
    Do subs need setting this way (1 meter I saw was not suitable for subs)
    Idea on cost new/ 2nd hand
    All help appreciated, thanks
     
  2. eviljohn2

    eviljohn2
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    The Radio Shack analogue SPL meter will do you just fine. The next step up is really a proper calibration microphone and some RTA software.

    Keene Electronics and Cornwall Electronics both supply the analogue version for about £30.
     
  3. ErikV

    ErikV
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    Most people seem to prefer an analog one. I don't know why. Anyway if you decide to go for digital it needs a dbc setting for dba doesn't "hear" low frequenties. Furthermore you need a "slow"stting on the meter in order to be able to read it.
    Good luck buying.
     
  4. eviljohn2

    eviljohn2
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    Whichever model you choose you need to use C-weighting and the Slow setting.

    The main reason for choosing the analogue model is that it's easier to see trends, much like on a car speedometer. :)
     
  5. simonrad

    simonrad
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    thanks everyone, should all analogues show the same scale eg 40-120db? not sure if this makes sense as I'm new to all this!
     
  6. eviljohn2

    eviljohn2
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    Different models will show different scales depending on how expensive they are. The area you need is between about 60dB to 100dB.
     
  7. alancolledge

    alancolledge
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    I bought mine from tandy years ago. It has a calibration screw in the side. What would be the proceedure to get the unit calibrated?
     
  8. Piers

    Piers
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    Not actually tried this, but think it will work - bring your meter here, I'll provide a 75 dB source measured by my £2,000 meter, you adjust yours until it reads the same!
     
  9. eviljohn2

    eviljohn2
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    That could well work although it's worth bearing in mind that for setup we don't need to consider the absolute values of the sound pressure, just make sure that individual channels are reading the same.
     
  10. alancolledge

    alancolledge
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    Thanks that sounds like a nice offer :smashin: Next time i am in sunny Shropshire I'll let you know. ;)
     

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