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01GB04IVE-W554ABT.fm
ALPINE IVE-W554ABT/IVE-W554EBT 68-25285Z79-A (EN)
Other Setting
[Other]
is selected on the Sound setup menu in step 3. Refer to “Sound
Setup Operation” (page 29).
You can change the volume of the sound heard when a button is
touched.
Setting item: Volume
Key Sound Feedback
Setting contents: 0 to 7 (Initial setting: 5)
Setting item: Source Volume Setup
Radio / DVD / CD /
Compress Media / iPod Music / iPod Video / AUX /
Bluetooth Audio
Setting contents: -14 to +14 (Initial setting: 0)
•
Settable source differ depending on the connected device and
settings.
You can set the rear speaker output to “Off.”
Setting item: Rear Speaker
Setting contents: On (Initial setting) / Off
If an optional subwoofer is connected to the unit, make the following
setting.
Setting item: Subwoofer
Setting contents: On / Off (Initial setting)
The subwoofer output phase is toggled Subwoofer Normal (0°) or
Subwoofer Reverse (180°).
Setting item: Subwoofer Phase
Setting contents: 0° / 180° (Initial setting: 0°)
•
If the Subwoofer setting is “Off,” the setting cannot be set.
Setting Defeat
[Defeat]
is selected on the Sound setup menu in step 3. Refer to “Sound
Setup Operation” (page 29).
If Defeat is “On,” MX, EQ Presets and Parametric EQ functions are
turned OFF. This disables any settings made for these functions.
Setting item: Defeat
Setting content: Off (Initial setting) / On
•
When Defeat is set to “ON,” the Car Specific Sound Setup/MX
(Media Xpander)/EQ Presets/Parametric EQ switch cannot be
selected.
•
Defeat is changed to “OFF” if you set BASS ENGINE SQ of Quick
Sound Setting to “ON.”
About Time Correction
The distance between the listener and the speakers in a car vary widely
due to the complex speaker placement. This difference in the distances
from the speakers to the listener creates a shift in the sounds image and
frequency characteristics. This is caused by the time delay between the
sound reaching the listener’s right versus the left ear.
To correct this, this unit is able to delay the audio signal to the speakers
closest to the listener. This effectively creates a perception of increased
distance for those speakers. The listener can be placed at an equal
distance between the left and right speakers for optimum staging.
The adjustment will be made for each speaker in 3.4cm steps.
Adjust the time correction level of the front left speaker to a high value
and the rear right to zero or a low value.
The sound is not balanced because the distance between the
listening position and the various speakers is different.
The difference in distance between the front left speaker and the rear
right speaker is 1.75 m (68-7/8").
Here we calculate the time correction value for the front left speaker
in the diagram on the above.
Conditions:
Farthest Speaker – listening position : 2.25 m (88-9/16")
Front left speaker – listening position : 0.5 m (19-11/16")
Calculation: L = 2.25 m – 0.5 m = 1.75 m (68-7/8")
Time correction = 1.75 ÷ 343
*
1
× 1000 = 5.1 (ms)
*
1
Speed of sound: 343 m/s (765 mph) at 20°C
In other words, giving the front left speaker a time correction value of
5.1 ms makes it seem as if its distance from the listener is the same
as the distance to the farthest speaker.
Time correction eliminates the differences in the time required for the
sound to reach the listening position.
The time of the front left speaker is corrected by 5.1 ms so that its
sound reaches the listening position at the same time as the sound of
other speakers.
Volume Setting
Setting the Volume for Each Source
Rear Speaker Setting
Turning Subwoofer ON/OFF
Setting the Subwoofer Phase
Example 1. Listening Position: Front Left Seat
5.1ms
2.25m
0.5m
01GB00IVE-W554ABT.book Page 34 Friday, January 24, 2014 5:43 PM
