Speaker Level Setup; Speaker And Delay/Distance Setup - Rotel RSP-1576MKII Manuel De L'utilisateur

Speaker Level Setup

SPEAKER LEVEL SETUP
FRONT LEFT
CENTER
FRONT RIGHT
SURROUND RIGHT
CENTER BACK RIGHT
OVERHEAD FRONT RIGHT
OVERHEAD REAR RIGHT
OVERHEAD REAR LEFT
OVERHEAD FRONT LEFT
CENTER BACK LEFT
SURROUND LEFT
SUBWOOFER
BACK
NOTE: If you have configured your system to use two center back
speakers, there will be an additional line in the menu, giving you the
ability to independently adjust the CENTER BACK LEFT and CENTER
BACK RIGHT speakers.
This menu uses filtered pink noise test tones to set equal volume levels for
all speakers (FRONT LEFT, CENTER, FRONT RIGHT, SURROUND RIGHT,
CENTER BACK RIGHT, CENTER BACK LEFT, OVERHEAD FRONT RIGHT,
OVERHEAD REAR RIGHT, OVERHEAD REAR LEFT, OVERHEAD FRONT LEFT,
SURROUND LEFT and SUBWOOFER) to ensure proper surround sound
reproduction. Setting the output levels using the test procedure provides the
most accurate adjustment so that digital surround sound material will be
reproduced as it was intended and is a critical step in calibrating the system.
The Audio Configuration will determine which speakers are displayed in
the Speaker Level Setup menu.
When you enter the SPEAKER LEVEL SETUP menu, you will hear a test tone
coming from the highlighted speaker. Highlight different speakers by moving
the cursor to the desired line using the Up/Down arrow buttons. The test
tone will shift accordingly to the selected speaker.
Seated in the normal listening location, shift the test tone to the various
speakers. Using the one speaker as a reference, listen for any speakers that
are noticeably louder or quieter. If so, adjust that speaker's levels up or down
(in 0.5 dB increments) using the Left/Right arrow buttons. Continue switching
among the speakers and adjusting until all speakers are the same volume.
To return to the MAIN menu, select "BACK" on the OSD or press the BACK
button. Press the SETUP button or select "EXIT" on the OSD to exit setup
and return to normal operation.
Calibration with an SPL meter:
Calibrating the system with an SPL (Sound Pressure Level) meter, rather than
by ear, provides more precise results and improves the system's performance
significantly. Inexpensive SPL meters are widely available and the procedure
is quick and easy.
Both Dolby and DTS specify a standard calibration level for all theaters to
ensure that soundtracks can be played at the volume level intended by the
director of the film. This reference level should result in spoken dialog played
at a realistic level for normal speech with the loudest peaks in any single
channel at about 105 dB. The RSP-1576MKII's test tones are generated at
a precise level (-30 dBFs) relative to the loudest possible digitally recorded
sound. At the Dolby or DTS reference level, these test tones should produce
a 75 dB reading on an SPL meter.
Set the meter to its 70 dB dial setting with SLOW response and C-weighting,
held away from your body at your listening position (mounting the SPL
meter on a camera tripod makes this easier). You can point the SPL meter
0DB
0DB
0DB
0DB
0DB
0DB
0DB
0DB
0DB
0DB
0DB
0DB
at each speaker as it is being measured; however, positioning the meter
in a fixed position pointing at the ceiling is easier and probably produces
more consistent results.
Increase the master volume control on the unit until the meter reads 75 dB
(+5 dB on the meter scale) when playing the test tone through one of the
front speakers. Then, use the individual channel adjustments on the SPEAKER
LEVEL SETUP menu to adjust each of the individual speakers, including the
subwoofer, to the same 75 dB on the SPL meter.
NOTE: Due to meter weighting curves and room effects, the actual
level of the subwoofer may be slightly higher than you measure. To
compensate, Dolby suggests setting the subwoofer several dB lower
when calibrating with an SPL meter (i.e. set the subwoofer to read 72
dB on the meter instead of 75 dB). Ultimately, the proper subwoofer
level must be determined by personal taste and some listeners prefer
to set it above 75 dB for film soundtracks. Exaggerated bass effects
come at the expense of proper blending with the main speakers and
place stress on the subwoofer and its amplifier. If you can localize
bass from the subwoofer, the subwoofer level may be too high. Music
can be useful for fine-tuning the subwoofer level as excessive bass is
readily apparent. The proper setting will generally work well for music
and movie soundtracks.
Remember the setting of the master volume control used during this calibration.
To play a Dolby Digital or DTS soundtrack at the reference volume level,
simply return to that volume setting. Note that most home theater listeners
find this setting to be excessively loud. Let your own ears be the judge for
deciding how loud to playback movie soundtracks and adjust the master
volume control accordingly. Regardless of your listening levels, using an SPL
meter to calibrate equal levels for all speakers in the system is recommended.

Speaker and Delay/Distance Setup

SPEAKER DISTANCE SETUP
FRONT LEFT
CENTER
FRONT RIGHT
SURROUND RIGHT
CENTER BACK RIGHT
OVERHEAD FRONT RIGHT
OVERHEAD REAR RIGHT
OVERHEAD REAR LEFT
OVERHEAD FRONT LEFT
CENTER BACK LEFT
SURROUND LEFT
SUBWOOFER
BACK
The SPEAKER DISTANCE SETUP menu, which is reached from the MAIN
menu, allows you to set the delay for individual speakers. This ensures that
the sound from each speaker arrives simultaneously at the listening position,
even when the speakers are not all placed at equal distances from the
listener. Increase the delay to speakers located closer to the seating area
and decrease the delay to speakers located farther from the seating area.
The Audio Configuration will determine which speakers are displayed in
the Speaker Distance Setup menu.
This Rotel processor makes setting the delay time for each speaker very
easy. Simply measure the distance (in feet or meters) from your seating
position to each speaker in your system. Set the measured distance in the
line for each speaker. The menu provides a line for each speaker configured
in your system and gives a range of settings up to 33 feet (10.06 meters)
in 0.25 foot (0.075 m) increments with each increment equivalent to an
additional delay of 0.25 ms.
25
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M
10.00 FT 3.05M