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The Audio Adjust functions are explained below.
Bass
With this function you can boost or cut low-frequency sounds
output by the front speakers from –12 dB to +12 dB in 2 dB steps.
Treble
With this function you can boost or cut high-frequency sounds
output by the front speakers from –12 dB to +12 dB in 2 dB steps.
Late Night (Only for Dolby Digital source)
With this function you can reduce the dynamic range of Dolby
Digital source so that you can still hear quiet parts even when
listening at low volume levels—ideal for watching movies late at
night when you don’t want to disturb anyone.
Late Night = Off ...........no effect
Late Night = Low .........small reduction in dynamic range
Late Night = High.........big reduction in dynamic range
Note that the impact of the Late Night function depends on the
Dolby Digital source that you are playing, and with some source
there will be little or no effect.
This function is automatically cancelled when you set the HT-R420
to Standby.
Cinema Filter
When this function is on, you can soften the harshness, or
brightness sometimes experienced with movie soundtracks, which
are typically mixed for reproduction in a movie theater.
Panorama (Pro Logic II Music)
When this function is on, you can extend the front stereo image to
the surround speakers to provide a “wraparound” effect, especially
useful when not much sound is being output by the surround
speakers.
Dimension (Pro Logic II Music)
When this function is on, you can move the soundfield backward or
forward.
With a setting of 3, the soundfield is in the normal position. Choose a
lower setting to move the soundfield forward. Choose a higher setting
to move it backward.
If the stereo image is too wide, or there’s too much surround
information, try moving the soundfield forward to achieve a better
balance. If the stereo image is too narrow, or it sounds almost like
it’s in mono, try moving the soundfield backward.
Center Width (Pro Logic II Music)
In Pro Logic II decoding, the center-channel signal is output by the
center speaker. If a center speaker is not used, the decoder divides
the center signal equally between the front left and right speakers,
producing what’s known as a “phantom” center. With this function
you can choose to have the center-channel signal output by only the
center speaker, by only the front left and right speakers (“phantom”
center), or by a mix of the two.
With a setting of 0, the center-channel signal is output only by the
center speaker.
With a setting of 7, it’s output only by the front left and right speakers
(“phantom” center).
In home theaters, adding some width to the center channel can
improve the balance between the center and front left and right
speakers. Most stereo source will benefit from appropriate use of
this function. The recommended setting for Pro Logic II Music
mode is 3. For Pro Logic II Movie mode, the setting is
automatically set to 0.
Audio adjust function