Setting Of Dolby 5.1Ch; Adjusting The Acoustic Image; Mixing Bass Sound To The Rear Channel; Achieving Powerful High Volume Sound - Alpine IVA-D310RB Owner's Manual

• If you set the speaker response to "OFF," also set the speaker setting
to "OFF." (page 47)
• Perform the setup for all the speakers ("Front," "Center," "Rear"
and "Subwoofer"). If not, the sound may not be balanced.
• When centre is set to "OFF", the setting is ineffective even if centre
is set with this function.
• Through changing the settings on each speaker, a change in the
output of the other speakers may occur due to the setting
requirements.
• When using the PRO LOGIC II, if the rear speaker is set to
"LARGE", then there will be no output from the subwoofer.

Setting of Dolby 5.1ch

1
Check that Defeat mode is off.
2
Touch [SETUP] on the main source screen.
The SETUP selection screen appears.
3
Touch [i-Personalize].
The i-Personalize screen will appear.
4
Touch [ ] of A.PROCESSOR.
The A.PROC list screen appears.
5
Touch [ ] of DOLBY 5.1 CH SETUP.
The DOLBY 5.1CH SETUP display appears.
Set the items below as you desire.

Adjusting the acoustic image

In most installations, the centre speaker must be placed directly between
the front passenger and driver. Using this function, the centre channel
information is distributed to the left and right speakers. This creates an
acoustic image simulating a centre speaker directly in front of each
listener. Adjusting the centre width in PL II MUSIC (see "Using the Pro
Logic II Mode," page 53), makes this function ineffective.
• Avoid stopping, pausing, switching the disc, cueing, fast-forwarding
or switching the audio channel of this unit while making this
adjustment. The setting is cancelled if the Decode mode is switched.
Touch [ ] or [ ] of BI-PHANTOM to adjust the level.
The level can be adjusted within the range of -5 to +5. The
higher the level, the more the position of the centre speaker is
shifted to the sides.
The BI-PHANTOM function is turned off by touching [OFF].
• This adjustment is effective when the setting of the centre speaker to
SMALL or LARGE in the speaker setup settings.
• This adjustment is ineffective when the speaker is set to CENTER
OFF in "Setting the Speakers" (page 47).

Mixing bass sound to the rear channel

This function mixes the front channel audio signals to the audio signals
output from the rear speakers, improving the sound in the vehicle's rear
seat.
• Avoid stopping, pausing, switching the disc, cueing, fast-forwarding
or switching the audio channel of this unit while making this
adjustment. The setting is cancelled if the Decode mode is switched.
Touch [ ] or [ ] of REAR MIX to adjust the level.
The level can adjusted in five steps: -6, -3, 0, +3 and +6. The
higher the level, the more bass is output from the rear speakers.
(The effect differs according to the software (DVD, etc.).)
The REAR MIX function is turned off by touching [OFF].
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• This adjustment is ineffective when the rear speaker setup setting is
set to "OFF."
• For linear PCM signals, the voice is output from the rear speaker
regardless of the REAR FILL and REAR MIX setting.

Achieving powerful high volume sound

With Dolby Digital, the dynamic range is compressed so that powerful
sound can be achieved at regular volume levels. This compression can
be cancelled to achieve an energetic sound with even greater power, like
the sound in a movie theater.
This function works only in the Dolby Digital mode.
Touch [ ] or [ ] of LISTENING MODE to select STD or MAX.
STD: For powerful sound at regular volume levels
MAX: For powerful sound at high volumes
• Keep the volume to a level at which sounds outside the vehicle can
still be heard.

Adjusting the speaker levels

The test tones help to make the volume adjustments of the different
speakers. When levels are equal, a strong sense of presence can be heard
from the different speakers at the listening position.
• Avoid stopping, pausing, switching the disc, cueing, fast-forwarding
or switching the audio channel of this unit while making this
adjustment. The setting is cancelled if the decode mode is switched.
1 Touch [ON] of OUTPUT LEVEL.
Test tone output is repeated for each of the different
speaker channels. They will be repeated in the order
shown below.
If no operation is performed for 2 seconds, the channel
switches to the next channel.
Left Center Right
Left surround Left
2 While the test tone is being produced from the speakers,
touch [ ] or [ ] of OUTPUT LEVEL balance the output
from all the speakers.
• The adjustment range for the different speakers is
–10 dB - +10 dB.
• Adjust based on the front speakers.
• If a speaker is set to off mode, that speaker's level adjustment cannot
be made.
Refer to "Speaker Setup" (page 51).

Adjusting the DVD Level

The volume (signal level) for Dolby Digital, Dolby PL II, DTS and
PCM modes can be set.
• Avoid stopping, pausing, switching the disc, cueing, fast-forwarding
or switching the audio channel of this unit while making this
adjustment. The setting is cancelled if the Decode mode is switched.
1
Check that Defeat mode is off.
2
Touch [SETUP] on the main source screen.
The SETUP selection screen appears.
3
Touch [i-Personalize].
The i-Personalize screen will appear.
4
Touch [ ] of A.PROCESSOR.
The A.PROC list screen appears.
Right Surround