Graphic EQ torture test

Posted by Bink on December 03, 2003 at 01:28:53:

In Reply to: Re: Graphic EQ Shootout in San Francisco posted by Marty McCann on December 03, 2003 at 00:43:03:

Say, Marty, you've been known to devise an evil bench test or two. (I don't intend to play with AC voltages!)

Besides taking screenshots of the really poor performers' SmaartLive transfer functions and inaccurate ISO centers what other kinds of torture tests can you suggest? How about the IMD ITU-R Intermodulation test where a 19kHz and a 20kHz tone are fed to a device and the product is examined for 1khz difference tones and other noise? I don't think a laptop running SmaartLive will give as accurate a result as lab-quality test gear. And how do I make sure my sound generator (a CD player) is putting out a clean 19 and 20k that's completely free of 1kHz? Ah, I could use the help of an experienced bench guy (plus all his toys...)

-Bink

Follow Ups:

• Re: Graphic EQ torture test Marty McCann 04:25:37 12/03/03 (3)
  • Re: Graphic EQ torture test Bink 00:02:56 12/04/03 (0)
  • Re: Graphic EQ torture test Dan Mortensen 05:14:28 12/03/03 (1)
    • Re: Graphic EQ torture test Geri O 12:22:58 12/03/03 (0)

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Comments:
: Say, Marty, you've been known to devise an evil bench test or two. (I don't intend to play with AC voltages!) 

: Besides taking screenshots of the really poor performers' SmaartLive transfer functions and inaccurate ISO centers what other kinds of torture tests can you suggest? How about the IMD ITU-R Intermodulation test where a 19kHz and a 20kHz tone are fed to a device and the product is examined for 1khz difference tones and other noise? I don't think a laptop running SmaartLive will give as accurate a result as lab-quality test gear. And how do I make sure my sound generator (a CD player) is putting out a clean 19 and 20k that's completely free of 1kHz? Ah, I could use the help of an experienced bench guy (plus all his toys...)

: -Bink



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