1. Sign-up to become a member, and most of the ads you see will disappear. It only takes 30 seconds to sign up, so join the discussion today!
    Dismiss Notice

Best way to measure room response with laptop and SPL meter?

Discussion in 'Archived Threads 2001-2004' started by Jason Price, Feb 9, 2002.

  1. Jason Price

    Jason Price Second Unit

    Joined:
    Sep 16, 1998
    Messages:
    265
    Likes Received:
    0
    Trophy Points:
    0
    I've got a laptop and an RS SPL meter and I want to measure the frequency response of my 20-39CS+ in my room. I seem to recall reading of people connecting their SPL meters to computers and using some software to get an accurate representation of their rooms. I also need to download a test-tone cd for this. So, I need to know how to connect the SPL meter to my laptop, what software to use (free, if possible), and where to download a test-tone cd. Can anyone help me out?
     
  2. Rick Radford

    Rick Radford Supporting Actor

    Joined:
    May 12, 2001
    Messages:
    642
    Likes Received:
    0
    Trophy Points:
    0
    Jason, if you have a full duplex sound card in your laptop, you'll benefit from using ETF5. I think you can also use a half-duplex card and get the MLS tones from ETF and burn a CD too. You can get a free demo that works. You just can't save/print files nor take more than 2 measurements without restarting the program.
    Regular test tones will not work with ETF. The have to be MLS signals. (maximum length sequence)
    Read about it here:
    http://www.etfacoustic.com/
    Check out these help sites: the first if you plan to use ETF and both if you plan to get a BFD1124p.
    http://www27.brinkster.com/jmag999/
    http://www.troycable.net/~snap/bfdinfo.htm
    HTH.
     

Share This Page