Adjusting The Ring Tone Level; Volume Setting; Setting Audio Mute On/Off While Backing Up; Setting The Microphone Effect - Alpine INE-W977HD Owner's Manual

Adjusting the Ring Tone Level

You can adjust the receive volume, during the call.
Setting item:
Ring Tone Level
Setting contents:
1 to 6 (Initial setting: 3)

Volume Setting

You can change the volume of the sound heard when a button is
touched.
Setting item:
Key Sound Feedback
Setting contents:
0 to 6 (Initial setting: 3)

Setting Audio Mute On/Off while Backing up

The sound can be muted when the shift gear lever is set to the reverse
(R) position enabling you to easily hear sensors, etc., while reversing
your car.
Setting item:
Mute While Backing Up
Setting contents:
Off / On (Initial setting)
Off: Does not mute.
On: Mutes when the shift gear lever is set to the reverse (R)
position.

Setting the Microphone Effect

Set this item when an iPhone 5 or later/Android smartphone with
Android Auto App is connected.
You can turn on or off the Microphone Effect.
This setting influences Apple CarPlay/Android Auto mode.
Setting item:
Microphone EC / NR
Setting contents:
On (Initial setting:) / Off

Default Sound Settings

You can restore the Dual HD EQ*/X-Over*/Time Correction*/MX HD
Level/Rear Speaker/Subwoofer/Subwoofer Level/Subwoofer Phase to
factory settings.
Setting item:
Default Sound Settings
Touch [Set], and the confirmation message appears.
To initialize, touch [OK].
* The setting values that are stored in Preset 1 to Preset 3 cannot be
initialized.
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About the Crossover

Crossover (X-Over):
This unit is equipped with an active crossover. The crossover limits the
frequencies delivered to the outputs. Each channel is controlled
independently. Thus, each speaker pair can be driven by the frequencies
for which they have been optimally designed.
The crossover adjusts the HPF (high pass filter) or LPF (low pass filter)
of each band, and also the slope (how fast the filter rolls off the highs or
lows).
Adjustments should be made according to the reproduction
characteristics of the speakers. Depending on the speakers, a passive
network may not be necessary. If you are unsure about this point, please
consult your authorized Alpine dealer.
Cut-off frequency
(1/3 octave steps)
HPF LPF
20 Hz -
Subwoofer
----
(LPF) 200 Hz
Rear
20 Hz -
----
speaker
200 Hz
(HPF)
Front
20 Hz -
----
speaker
200 Hz
(HPF)
Low range
Slope adjusting
Output frequency
range
Subwoofer
Slope
FLAT
Level
adjusting
(0 to –12 dB)
20 Hz
(Different from actual
display)
LPF cut-off
frequency
• HPF (high pass filter): Cuts the lower frequencies and allows the higher
frequencies to pass.
• LPF (low pass filter): Cuts the higher frequencies and allows the lower
frequencies to pass.
• Slope: The level change (in dB) for a frequency change of one octave.
• The higher the slope value, the steeper the slope becomes.
• Adjust the slope to FLAT to bypass the HP or LP filters.
• Do not use a tweeter without the HPF on or set to a low frequency, as it
may cause damage to the speaker due to the low frequency content.
• Adjustment should be made according to the recommended crossover
frequency of the connected speakers. Determine the recommended
crossover frequency of the speakers. Adjusting to a frequency range
outside that recommended may cause damage to the speakers.
For the recommended crossover frequencies of Alpine speakers, refer to
the respective Owner's Manual.
We are not responsible for damage or malfunction of speakers caused by
using the crossover outside the recommended value.
Slope
Level
HPF LPF
0, 6, 12, 18, 0 to
----
24 dB/oct. –12 dB
0, 6, 12, 18, 0 to
----
24 dB/oct. –12 dB
0, 6, 12, 18, 0 to
----
24 dB/oct. –12 dB
High range
Output frequency range
Rear speaker
Front speaker
200 Hz
HPF cut-off
frequency