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8. Calibration > 66. Avoid Using Internal Test Tones

Avoid Using Internal Test Tones

Most receivers and preamplifier/processors provide test tones to measure audio levels from each speaker. These tones aren’t an accurate representation of your entire system’s sounds, and you should consider them to be a rough guideline at best and problematic at worst.

Most receivers have their own internal test tone generator which you can use to set speaker levels. Although this might seem a real convenience and avoid the need for a calibration DVD [Hack #62] , it turns out to be as problematic a solution as the THX Optimizer [Hack #65] . Many people attempt to set their speaker levels using these tones by ear, instead of using a sound pressure level meter [Hack #63] . This will not result in accurate calibration. Even if you subscribe to the value of the receiver’s internal test tones, using a consistent sound measuring device is a must. However, even when using a meter, these internal tones aren’t always ideal.


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