What do I need?

Discussion in 'Archived Threads 2001-2004' started by AbelM, Jan 1, 2002.

  1. AbelM

    AbelM Second Unit

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    From RS to calibrate my system properly, and about how much $??
    So far I know I need:
    • SPL Meter
    • Avia
      and
    • VE
    What else??
     
  2. Marc Rochkind

    Marc Rochkind Second Unit

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    Don't know why you would need VE if you have AVIA.
     
  3. AbelM

    AbelM Second Unit

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    So out of the 43 people that took their time to read this, no one is gonna help me?
     
  4. Steve Zimmerman

    Steve Zimmerman Second Unit

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    You'll need the SPL meter for sure--about $50 bucks or so from RS as I recall but it's been a while since I bought mine so take that price as simply a ballpark estimate.
    I own AVIA and it works very well. My only comment is that for low frequencies (i.e. subwoofer testing) the sweep signals are a little bit too fast if you are going to try to plot the per-frequency response of your sub down low.
    Others have recommended a test CD from Stryke Audio for sub testing--it's $10 and is available at www.stryke.com.
    HTH,
    --Steve
     
  5. Jim_Stu

    Jim_Stu Stunt Coordinator

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    Abel,

    In addition to your HT equipment, you will only

    need 3 things:

    1) Avia DVD (orig: Ovation) available on-line (abt. $55.00.

    2) Sound Pressure Level meter - I like the Extech,

    auto-ranging, digital meter. However, its about $250.00.

    Lower priced analog units are available. Whatever you get,

    read the manual! Most meter readings will require compensation

    near the upper and lower end of your HTs range.

    3) Ear plugs.

    btw- The Avia DVD can be used to adjust your video.

    JRS
     
  6. ColinM

    ColinM Cinematographer

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    Yo Abel -
    Got the RS meter for $39 a couple of months ago. The VE disk is cheaper and more readily available in my area than Avia, although Avia is better, it's more detailed.
    I've used VE to tweak my system and it sounds fine, and to get accurate bass note details I got the Bass Mechanix CD at Best Buy for another $17. It's got all of the proper bass tones, and when it's used with the SPL meter, you can see how it really performs. The bass is where the biggest difference/payoffs are in systems like ours. The main speaks are always set to small, or should be, and let Mr Sub do the grunt work. Spend time working on the sub section.
    Keep in mind that when you do level checks, the SPL meter will be off, and you will need to add some numbers to get the true reading. - -
    10Hz +20.5
    12.5Hz +16.5
    16Hz +11.5
    20Hz +7.5
    25Hz +5
    31.5Hz +3
    40Hz +2.5
    50Hz +1.5
    63Hz +1.5
    80Hz +1.5
    100Hz +2
    So if you are playing a 20Hz tone and the meter says 75db, it is really 82.5 db.
    Have fun!
    [​IMG] [​IMG]
     
  7. AbelM

    AbelM Second Unit

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    Thanx Collin
     
  8. Bill Bradstreet

    Bill Bradstreet Stunt Coordinator

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