ONKYO HT-R990 Manual Do Utilizador

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With the Audio Adjust functions and settings, you can 
adjust the sound and listening modes as you like.

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This setting determines which channel of a stereo 
multiplex source is output. Use it to select audio channels 
or languages with multiplex sources, multilingual TV 
broadcasts, and so on.

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This setting specifies the channel to be used for playing 
any 2-channel digital source such as Dolby Digital, or 2-
channel analog/PCM source in the Mono listening mode.

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Center:

Mono audio is output by the center speaker.

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Left / Right:

Mono audio is output by the front left and right 
speakers.

This setting determines which speakers output mono 
audio when the Mono listening mode is selected.

• If  the  “Center” setting is set to “No” (

page 44), this setting 

cannot be selected.

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These settings apply to only 2-channel stereo sources.
If you’re not using any surround back speakers, these 
settings apply to Dolby Pro Logic II, not Dolby Pro Logic 
IIx.

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With this setting, you can broaden the width of the front 
stereo image when using the Dolby Pro Logic IIx Music 
listening mode.

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–3 to 0 to +3

With this setting, you can move the sound field forward or 
backward when using the Dolby Pro Logic IIx Music 
listening mode. Higher settings move the sound field 
backward. Lower settings move it forward.
If the stereo image feels too wide, or there’s too much 
surround sound, move the sound field forward to improve 
the balance. Conversely, if the stereo image feels like it’s 
in mono, or there’s not enough surround sound, move it 
backward.

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0 to 3 to 7

With this setting, you can adjust the width of the sound 
from the center speaker when using the Dolby Pro Logic 
IIx Music listening mode. Normally, if you’re using a 
center speaker, the center channel sound is output from 
only the center speaker. (If you’re not using a center 
speaker, the center channel sound will be distributed to the 
front left and right speakers to create a phantom center). 
This setting controls the front left, right, and center mix, 
allowing you to adjust the weight of the center channel 
sound.

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The Height Gain Control in Dolby Pro Logic IIz enables 
the listener to select how much gain is applied to the front 
high speakers. There are three settings, “Low”, “Mid” and 
“High”, and the front high speakers are accentuated in that 
order. While “Mid” is the default listening setting, the 
listener may adjust the Height Gain Control to their 
personal preference.

• If the “Front High” setting is set to “No” (

setting cannot be selected.

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Auto:

If the source signal contains a Dolby EX flag, the 
Dolby EX or THX Surround EX listening mode is 
used.

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Manual:

You can select any available listening mode.

This setting determines how Dolby EX encoded signals 
are handled. This setting is unavailable if no surround 
back speakers are connected. This setting is effective with 
Dolby Digital, Dolby Digital Plus and Dolby TrueHD 
only.

• If the “Surround Back” setting is set to “No” (

this setting cannot be selected.

• If the “Front High” setting is enabled (

page 44), this setting 

is fixed to “Manual”.