Yamaha DSP-A1 Car Amplifier User Manual


 
34
Choices: MAX/STD/MIN
Preset position: MAX
This adjustment is effective only when the Dolby Digital
(AC-3) is decoded.
MAX: “Dynamic range” is the difference between the
maximum level and the minimum level of sounds.
Sounds on a movie originally designed for movie
theaters feature very wide dynamic range.
Dolby Digital (AC-3) technology can bring the original
sound track into a home audio format with this wide
dynamic range unchanged.
In this position, a source encoded with the Dolby
Digital (AC-3) is reproduced in the original sound
track’s wide dynamic range providing you with
powerful sounds like a movie theater.
Selecting this position will be more ideal if you can
listen to a source in a high output level in a room
specially soundproofed for audio/video enjoyment.
STD (Standard):
Powerful sounds of extremely wide dynamic range
are not always suitable for home use. Depending
upon the condition of your listening environment, it
may not be possible to increase the sound output
level as high as a movie theater. However, in a level
suitable for listening in your room, the low level parts
of source sound cannot be heard well because they
will be lost among noises in your environment.
Dolby Digital (AC-3) technology also made it
possible to reduce an original sound track’s dynamic
range for a home audio format by “compressing” the
data of sound.
In this position, a source encoded with the Dolby
Digital (AC-3) is reproduced in the “compressed”
dynamic range of the source suitable for low level
listening.
If you desire, you can adjust the dynamic range
manually only when the STD position is selected.
H-LEVEL CUT (High Level Cut Scale)
Control range: 0.0 to 1.0
Preset value: 1.0
Adjusts the dynamic range of high level signals of
source. The larger the value, the more the range is
reduced. The smaller the value, the range is more
widened.
L-LEVEL BST (Low Level Boost Scale)
Control range: 0.0 to 1.0
Preset value: 1.0
Adjusts the dynamic range of low level signals of
source. The larger the value, the more the range is
widened. The smaller the value, the range is more
reduced.
Adjusting method
Select the title H-LEVEL CUT or L-LEVEL BST by
pressing the or key and adjust its value by
pressing the + or – key.
MIN: In this position, dynamic range is more reduced than
in the STD position. Selecting this position will be
effective when you must listen to a source in
extremely low level.
* In this position, it may happen that sound is output
faintly or not output normally depending on a
source. In that case, select the MAX or STD
position.
3B. D-RANGE (Adjusting dynamic range)
4. DTS SET
Adjusting method
After selecting the title “4. DTS SET” in step 1 on page 32, press the + or – key to display the title “4A. LFE LEVEL”. Then adjust its
level with the + or – key.
4A. LFE LEVEL (Adjusting the output level at the LFE (low frequency effect) channel)
Control range: –10 dB to 10 dB
Preset value: 0 dB
This adjustment is effective only when the DTS is decoded
and the signals of selected source encoded with the DTS
contain LFE signals.
Adjusts the output level at the LFE (low frequency effect)
channel. If the LFE signals are mixed with signals at other
channels to output them from the same speakers, the ratio of
LFE signal level to the level of other signals is adjusted. (Refer to
page 6 for details about the LFE channel.)