Sony STR-DN840 Operating Instructions Manual page 34

• Measure the distance of each speaker
from your seating position.
• Measure the speaker size.
• Measure the frequency characteristics
1)
(EQ).
• Measure the frequency characteristics
1)2)
(Phase).
1)
The measurement result is not utilized when
"Analog Direct" is selected.
2)
The measurement result is not utilized when
Dolby TrueHD or DTS-HD signals with a
sampling frequency of more than 48 kHz are
being received.
The DCAC is designed to achieve proper
sound balance for your room. However,
you can adjust the speaker levels manually
according to your preference. For details,
see "Test Tone" (page 92).
Before you perform Auto
Calibration
Before you perform Auto Calibration,
check the following items.
• Set up and connect the speakers (page 20,
22).
• Connect only the supplied optimizer
microphone to the AUTO CAL MIC jack.
Do not connect any other microphones to
this jack.
• Set the "SB Assign" to "Bi-Amp" in the
Speaker Settings menu if you use bi-
amplifier connection (page 90).
• Set the "SB Assign" to "Speaker B" in the
Speaker Settings menu if you use
speakers front B connection (page 90).
• Make sure the speaker output is not set to
"SPK OFF" (page 35).
• Make sure that you are not using PARTY
STREAMING function (page 68).
• Disconnect the headphones.
• Remove any obstacles in the path
between the optimizer microphone and
the speakers to avoid measurement
errors.
• Get accurate measurement by making
sure the environment is quiet.
34
US
1)
1)
Notes
• The speakers emit very loud sound during the
calibration and the volume cannot be adjusted.
Provide consideration to your neighborhood and
to the children in presence.
• If the muting function has been activated before
you perform Auto Calibration, the muting
function will shut off automatically.
• The correct measurements may not be able to
take or Auto Calibration cannot be performed
when special speakers, such as dipole speakers
are used.
To set up the Auto
Calibration
1
Connect the supplied optimizer
microphone to the AUTO CAL MIC
jack.
2
Set up the optimizer microphone.
Place the optimizer microphone at
your seating position and set it at the
same height as your ears.
Confirm active subwoofer
setup
• When a subwoofer is connected, turn on
the subwoofer and turn up the volume
prior to activating the subwoofer. Turn
the LEVEL to just before the mid-point.
• If you connect a subwoofer with a
crossover frequency function, set the
value to maximum.
Optimizer microphone