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Time alignment adjustment (Time Alignment)
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Sound Adjustment Mode
Time alignment adjustment (Time Alignment)
The delay time and level of the sound from each speaker can be adjusted in order to correct any phase mismatches in the sound resulting from the listening position. You can automatically adjust them if the optional measurement microphone (MEI-100) is connected.
Manually adjusting Time Alignment
Select "Time Alignment" by pressing the [
] or [
] button.
Press the [ENTER] button.
The time alignment setting mode is activated.
Press the [ENTER] button to select the speaker band to
be adjusted.
Each time the button is pressed, the band changes in the following order.
Front Left → Front Right → Rear Left → Rear Right → Non-Fader → Front Left ···
Adjust the time delay in the arrival of the sound by pressing
the [
] or [
] button.
The delay time can be adjusted within 0.0 to 10.0 ms (0.1 ms for the main unit).
[]:
Increases
the time.
[]:
Decreases
the time.
Refer to the following for the method of calculating the delay time.
A = (B-C) / 34
A: Delay time (ms)
B: Distance from the listening position to the furthest speaker (cm)
C: Distance from the listening position to the speaker to be adjusted (cm)
(Example) Listening position:
Driver's seat (left)B: 200 (cm)
C: 50 (cm)
Delay time = 200 (cm) - 50 (cm) / 34
= Approx. 4.4 (ms)Time Alignment cannot be specified together with Position selector.
Adjust the level by pressing the [] or [] button.
[]:
Increases
the dB.
[]:
Decreases the dB.
Automatically adjusting Time Alignment (Auto TA)
You can automatically measure and adjust the delay time and sound level from each speaker if the optional measurement microphone (MEI-100) is connected to this system.
Connect
the RCA connector of the optional microphone (MEI-100) to the L-ch
of the AUX jack of the main unit.
Align the microphone with the actual ear position and attach it to the headrest or other appropriate fixture.
(When installing the microphone, fix it with a tape or string.)
Hold
down the [ENTER] button on the Time Align screen for more than one
second.
After pressing the button, a 10-second countdown begins. Leave the vehicle during that time.
After ten seconds, impulses will be output from the speakers and the measurement of the time alignment will start. "Measuring" is shown during measurement.
You can adjust the volume (by turning the [VOL] knob) and restart measurement while it is in progress.
Press
the [
/BAND] button once
more to cancel measurement.
When the speaker band is set to Non-Fader (Sub-woofer), you cannot automatically adjust the time alignment.
The loudness and position selector functions are turned off during automatic adjustment of the time alignment.
Bluetooth is temporarily disconnected during automatic adjustment of the time alignment.
