Bedienungsanleitung Alpine X800D-ML (Seite 56 von 116) (Englisch)

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Calling the X-OVER adjusted value

Calling the pre-set X-OVER adjusted value.

Touch [Preset1], [Preset2], or [Preset3] on the

X-OVER screen.

The setting stored in the Preset will be recalled.

Setting Defeat

[Defeat] is selected on the Sound setup menu in step 3. Refer to “Sound

Setup Operation” (page 52).

If Defeat is “On”, MX, Equalizer Presets, Car Specific Sound Setup and

Parametric EQ functions are turned OFF. This disables any settings

made for these functions.

Setting item: Defeat

Setting contents: Off (Initial setting) / On

Volume Setting

[Volume] is selected on the Sound setup menu in step 3. Refer to

“Sound Setup Operation” (page 52).

You can change the volume of the sound heard when a button is

touched.

Setting item: Key Sound Feedback

Setting contents: 0 to 7 (Initial setting: 4)

Setting the Volume for Each Source

[Source Volume Setup] is selected on the Sound setup menu in step 3.

Refer to “Sound Setup Operation” (page 52).

The volume level for each application can be adjusted.

Setting item: Radio / DAB / DVD / CD / Compressed Media /

iPod Music / iPod Video / HDMI / AUX / AUX3 /

BLUETOOTH Audio

Setting contents: -14 to +14 (Initial setting: 0)

• Settable source differ depending on the connected device and

settings.

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 3.4 cm 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* × 1,000 = 5.1 (ms)

* 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.

Adjust the time correction level of each speaker to almost the same level.

Sit in the listening position (driver’s seat, etc.) and

measure the distance (in metres) between your head

and the various speakers.

Calculate the difference between the distance

correction value to the farthest speaker and the

other speakers.

L = (distance to farthest speaker) – (distance to other

speakers)

These values are the time correction values for the different

speakers. Setting these values to make each sound reach the

listening position at the same time as the sound of other

speakers.

Example 1. Listening Position: Front Left Seat

Example 2. Listening Position: All Seats

5.1ms

2.25m

0.5m

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