59
power to car phones or mobile phones in the vehicle, or
remove them in advance. Surrounding sounds may prevent
correct measurement of the vehicle’s acoustics.
Be sure to use the microphone for acoustical measurement.
Using another microphone may prevent measurement, or
result in incorrect measurement of the vehicle’s acoustics.
To perform Auto EQ, the front speakers must be connected.
When this product is connected to a power amp with input
level control, Auto EQ may be impossible if the power amp’s
input level is set below the standard level.
When this product is connected to a power amp with an LPF
(low pass filter), turn the LPF off before performing Auto EQ.
Also, set the cut-off frequency for the built-in LPF of an active
subwoofer to the highest frequency.
The distance has been calculated by a computer to provide
optimum delay to ensure accurate results. Do not change
this value.
— The reflected sound within the vehicle is strong and delays
occur.
— The LPF on active subwoofers or external amps delay the
lower sounds.
If an error occurs during measurement, check the following
before measuring the vehicle’s acoustics.
— Front speakers (left/right)
— Rear speakers (left/right)
— Noise
— Microphone for acoustical measurement
— Low battery
Performing Auto EQ
CAUTION
Do not turn off the engine while the measurement is in
progress.
p
Auto EQ changes the audio settings as follows:
— The fader/balance settings return to the centre position.
Refer to
Using fader/balance adjustment
on page 57
— “
Mute Level
” is set to “
Off
”.
Refer to
Switching sound muting/attenuation
on page 57
p
Previous settings for Auto EQ will be overwritten.
1 Stop the vehicle in a quiet place, close all the
doors, windows and sun roof, and then turn the
engine off.
If the engine is left running, engine noise may prevent correct
Auto EQ.
p
If driving restrictions are detected during measurement,
measurement is cancelled.
2 Fix the microphone for acoustical measurement
in the centre of the headrest of the driver’s seat,
facing forwards.
The Auto EQ may differ depending on where you place the micro-
phone. If desired, place the microphone on the front passenger
seat and perform Auto EQ.
3 Disconnect the iPhone or smartphone device.
4 Turn on the ignition switch (ACC ON).
If the vehicle’s air conditioner or heater is turned on, turn it off.
5 Turn the source off.
Refer to
Selecting a source
on page 9
6 Display the “
Audio
” setting screen.
Refer to
Displaying the “
Audio
” setting screen
on page 57
7 Touch [
A-EQ&TA Measurement
].
8 Connect the microphone for acoustical meas-
urement with this product.
F80BT
Plug the microphone into the auto EQ microphone input jack on
this product.
Refer to
Checking part names and functions
on page 5
F980BT
Plug the microphone into the AUX input jack on the back panel
of this product.
Refer to the Installation Manual.
p
Use an extension cable (sold separately) if the cord of the
Microphone (sold separately) is not long enough.
9 Touch [
Front Left
] or [
Front Right
] to select the
current listening position.
10 Touch [
Start
].
A 10-second countdown starts.
p
The Bluetooth connection is disconnected before the pro-
cess starts.
11 Exit the vehicle and keep the doors closed until
the countdown finishes.
When the countdown finishes, a measurement tone (noise)
is emitted from the speakers and the Auto EQ measurement
begins.
12 Wait until the measurement is completed.
When Auto EQ is completed, a message is displayed.
p
The measurement time varies depending on the type of
vehicle.
To stop the measurement, touch [
Stop
].
13 Store the microphone carefully in the glove box
or another safe place.
If the microphone is subjected to direct sunlight for an extended
period, high temperatures may cause distortion, colour change
or malfunction.
Using the automatic sound levelizer
During driving, noise in the car changes according to the driving
speed and road conditions. ASL (automatic sound levelizer)
monitors such varying noise and automatically increases the
volume level, if this noise becomes greater. The sensitivity
(variation of volume level to noise level) of ASL can be set to one
of five levels.
1 Display the “
Audio
” setting screen.
Refer to
Displaying the “
Audio
” setting screen
on page 57
2 Touch [
ASL
].
3 Touch the desired level.
p
If you trail a finger across the bars of multiple equaliser
bands, the equaliser curve settings will be set to the value of
the touched point on each bar.
Setting the auto-adjusted equaliser
You can set the auto-adjusted equalizer to suit the vehicle’s
acoustics. To use this function, the Auto EQ measurement must
be done in advance.
Refer to
Adjusting the equaliser curve automatically (Auto EQ)
on page 58
The default setting is “
Off
”.
1 Display the “
Audio
” setting screen.
Refer to
Displaying the “
Audio
” setting screen
on page 57
2 Touch [
Auto EQ&TA
] to switch “
On
” or “
Off
”.
Adjusting the equaliser curve
automatically (Auto EQ)
By measuring the vehicle’s acoustics, the equaliser curve can be
adjusted automatically to suit the vehicle interior.
WARNING
A loud tone (noise) may be emitted from the speakers when
measuring the vehicle’s acoustics. Never perform Auto EQ
measurement while driving.
CAUTION
Thoroughly check the conditions before performing Auto
EQ, as the speakers may be damaged if this is performed
under the following conditions:
—
When the speakers are incorrectly connected. (For exam-
ple, when a rear speaker is connected as a subwoofer
output.)
—
When a speaker is connected to a power amp delivering
output higher than the speaker’s maximum input power
capability.
If a microphone for acoustical measurement is not
placed in an appropriate location, the measurement tone
may become loud and measurement may take a long
time, resulting in battery drainage. Be sure to place the
microphone in the specified location.
Before operating the Auto EQ
function
Perform Auto EQ in as quiet a place as possible, with the
vehicle engine and air conditioning switched off. Also, cut
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< CRB4783-A >
Audio adjustments
Audio adjustments
