Alpine VPA-B222 owner manual Setting of Dolby Digital, Adjusting the acoustic image

Models: VPA-B222

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Setting of Dolby Digital

1 Check that Defeat mode is off (page 10).

2 Press and hold MUTE/RTN/SETUP for at least 2 seconds.

The SETUP screen is displayed.

3 Press the joystick up or down to select AP SETUP, then press the joystick right.

The AP SETUP screen is displayed.

4 Press the joystick up or down to select MULTI CH SET, then press the joystick right.

The MULTI CH SET screen is displayed.

5 Press the joystick up or down to select the desired item.

Set the items below as you desire.

Adjusting the acoustic image

In most installations, the center speaker must be placed directly between the front passenger and driver. Using this function, the center channel information is distributed to the left and right speakers. This creates an acoustic image simulating a center speaker directly in front of each listener. Adjusting the center width in PL II MUSIC (see “Using the Pro Logic II Mode,” page 38), 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 canceled if the Decode mode is switched.

1Press the joystick left or right to select ON of BI-

PHANTOM.

2Press the joystick down to select BI-PHANTOM LV.

3Press the joystick left or right 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 center speaker is shifted to the sides.

The BI-PHANTOM function is turned off when setting to OFF.

This adjustment is effective when the setting of the center 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 33).

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 canceled if the Decode mode is switched.

1Press the joystick left or right to select ON of REAR MIX.

2Press the joystick down to select MIX LEVEL.

3Press the joystick left or right 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 depending on to the software (DVD, etc.)).

The REAR MIX function is turned off when set to OFF.

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 canceled 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.

Press the joystick left or right to select STD or MAX. of

LISTENING.

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 canceled if the decode mode is switched.

1Press the joystick left or right to select ON of OUTPUT. 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 Right Surround

Left surround Left

2Press the joystick down to select OUTPUT LEVEL.

3Press the joystick left or right to 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 36).

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Alpine VPA-B222 owner manual Setting of Dolby Digital, Adjusting the acoustic image, Mixing bass sound to the rear channel