• Granite Audio has a test CD with bass tones... - Steve Parry 07:39:48 12/26/03 (0)
  In Reply to: question about test CDs posted by ephemere on December 23, 2003 at 13:30:09:

  ...every hertz. Search for Granite Audio at Music Direct, etc. and you will find it.
  
  

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• Re: question about test CDs - Ethan Winer 08:17:39 12/24/03 (1)
  In Reply to: question about test CDs posted by ephemere on December 23, 2003 at 13:30:09:

  Eph,

  Yes, 1/3 octave test tones are too wide to precisely identify the peaks and nulls in a room. They're still useful though, if only to show how bad the response really is! If you play ANY low frequency tone and walk around the room you'll immediately hear how the level varies all over the place.

  I've use SoundForge to create sine waves at 1 Hz intervals up to 300 Hz, but lately I've been using Vincent Burell's freeware sine wave oscillator program. It can play any audio frequency through a computer's sound card, but you need to connect your computer to your audio system.

  You can download it for free here:

  www.vb-audio.com

  Look for "LF Generator 1.0" on the lower right of the page.

  --Ethan
  
  

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  • Re: question about test CDs - ephemere 00:59:47 12/26/03 (0)
    In Reply to: Re: question about test CDs posted by Ethan Winer on December 24, 2003 at 08:17:39:

    Thanks. I decided to order this CD because the burst tones should be quite useful.

    But thanks also for the link to that freeware tone generator. Looks very useful, as soon as I get a very long cable to hook my soundcard up.
    
    

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