Should I use on board test tones or Avia?

Discussion in 'AV Receivers & Amplifiers' started by Paulherb, Aug 7, 2002.

  1. Paulherb

    Paulherb
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    I set the sound levels on my Amp using a sound meter and the on board test tones but when I popped the Avia DVD in my Player the speakers were diffrent volumes.

    The Avia is for use with a 5.1 system whereas my amp is 7.1, will this make any difference?

    Any help would be most welcome!

    Cheers


    Paulh.
     
  2. Electric Mayhem

    Electric Mayhem
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    Hi

    The AVIA disc is more accurate as it brings the dvd player into the loop. I use it to setup the main 5.1 speakers but do the surround back channels by ear. Using the internal test tones for the surround backs always makes them appear too loud (in my setup anyway).
     
  3. bob007

    bob007
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    You want to hire this guy out, gets them spot on you know. :D
    [​IMG]

    Jase,

    Am i right in saying that THX Optimiser is the only one that can set the surround backs up, all the rest are for 5.1.
     
  4. Electric Mayhem

    Electric Mayhem
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    Nice ears.:D

    You can use the THX Optimiser for surround backs, just set the five main channels with AVIA (balanced to 85db), remember the volume level setting eg 0db then use THX optimiser, set the volume level to 0db on the amp, start the tones and see what readings you get (have to be quick as they move round!). If you get 88db for example, lower the surround backs by 3db, if you get 83db, up them a couple.

    There is another test disc which does have test tones for EX/ES, Stereophile Guide to Home Theatre, I think it´s called.??
     
  5. Paulherb

    Paulherb
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    Cheers Gents

    Paulh.
     
  6. Epoman

    Epoman

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    Jase

    I thought the recommended levels were 75db and about 6db less for the subs?

    Imran
     
  7. Electric Mayhem

    Electric Mayhem
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    Hi

    If you´re using the amps internal test tones then balance all channels to 75db inc the sub (you can actually set the sub level lower or higher depending on personal taste). If you use the Video Essentials setup disc, again set the levels to 75db. With AVIA set to 85db (although in the tutorial on the disc they say you can set it lower, 75db if you want, as long as all channels are balanced in relation to each other).
     
  8. Paulherb

    Paulherb
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    Cheers Gents

    I set them using Avia and it sounded worse than the internal, so I reset them using the internal test tones.

    The Amp is THX Ultra cert so I suppose the internal tones should be correct.

    Cheers

    Paulh.
     
  9. Electric Mayhem

    Electric Mayhem
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    How do you mean worse?

    My settings set to 75db with the internal test tones were almost exactly the same as set with the AVIA disc to 85db. Rear left surround was out 1db!. (THX Ultra amp as well).
     
  10. Paulherb

    Paulherb
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    Hi Jase,
    I set the levels using the internal test tones and the balance sound better. I'll give the Avia disc a nother whirl when I get a chance. I don't think I was using the Avia tones at 85dB.

    Cheers

    Paulh.
     
  11. micb3rd

    micb3rd
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    Avia is recored at -20 below refrence so calibrate to 85.
    Internal test tones recorded at -30 below refrence so calibrate to 75.

    Both should give similar results.
     

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