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Performing A Dirac Live Room Calibration
Volume Calibration - Master Output Level
Now we are going to set the overall Master Output level for our test tones.
In order to do this we are going to play a test tone through one of our speakers and adjust the
Master Output level, which is the small black tab on the Master Output bar. Start by selecting the
speaker that you believe has the lowest efficiency or generally plays the least loudly. This isn't
critical so, if you're unsure, simply select the Right Surround as shown in the illustration.
Note: In the next step we're going to be playing test tones. The test tone used for full range
speakers is a type of hiss called pink noise while a sweep tone is used for subwoofers. These
tones may be somewhat annoying but should not be loud enough to damage your speakers.
If the test stones seem EXCEPTIONALLY loud, or you hear no test tones, stop the test, and call
Emotiva Technical Support.
Start by sliding the Master Output level tab all the way down. Now click on the small triangle
under the speaker you've chosen (it looks like a "Play" button) observe the level indicated by the
meter bar next to the speaker you've chosen. DO NOT ADJUST THE BLACK TAB THAT GOES WITH
THE SPEAKER THAT YOU HAVE CHOSEN. Gradually move the Master Output level tab up. As you do
so the sound will get louder and the meter bar next to the speaker will show a higher level. Stop
raising the level when the meter bar shows an indication about halfway up the green zone - at
about -15 dB. You may then press the button under the speaker (which now looks like a square
"Stop" button) to stop the test tone.
Note: While the test tone is playing a small line will start filling in a circle around the button...
and the test tone will shut off when the line reaches the end. Try to make your adjustment
before the test tone stops playing. If you need more time you may simply press the button
again to repeat the test tone.
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