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Plotting a response curve...

Discussion in 'Home Cinema Building DIY' started by BigToe, Nov 17, 2003.

  1. BigToe

    BigToe
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    Hi,

    What would I need in order to plot a response curve for my Shiva sub? I don't have access to an SPL meter, would it be possible to record the SPL with a standard mic attached to my computer? Are there any specific (automatic?) programs geared around SPL readings, or is it a simple (yet time consuming) case of playing one frequency after another and sticking it all in a table?

    Cheers,

    Chris
     
  2. BigToe

    BigToe
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    Ok, I've realised that the microphone idea is probably a bit silly :blush: I'm guessing it wouldn't be able to record such pressure levels without distortion.

    So, are there any programs that simplify the whole procedure? Such as playing each frequency a step at a time and providing a means to enter the results as I go along?

    Cheers
     
  3. buns

    buns
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    You could do the mic thing...... but you would need a preamp so that you could get a line level signal into the pc. There are then programs like spectraplus which will do you a response automatically and are free for 30 day trial.

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