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Speaker configuration cont.
azur 551R
Video In. Select
Unit
Audio In. Select
Front L
Tone/Sub Config.
Front R
Speaker Config.
Center
Speaker Distance
Surr. L
Speaker Level
Surr. R
Speaker Xover
Surr. LB
Auto Setup
Suur. RB
Advanced Setup
OSD Setup
Back: [I/O]
Note: In addition to the delays as set above Dolby Pro Logic II/IIx playback
also requires an extra 15 milliseconds delay to the surround channels only.
This extra delay is part of the Dolby Pro Logic II specification and ensures that
sound from the surrounds arrives just after sound from the front reducing the
audibility of sound leakage from the front to the surround speakers. Because
the relationship between the Dolby Digital and Dolby Pro Logic IIx two delays
is fixed (15mS extra to the surround channels), it is only necessary to set the
delay by measuring the distances as we have described. The 551R V2 will
automatically provide the appropriate extra delay whenever you switch to a
Dolby Pro Logic Mode.
Level calibration
The 551R V2 allows level calibration to match the acoustic level between
different types/sizes or even manufacturers of speaker that may be being
used for each channel. This is achieved by adjusting the relative level of
each speaker. This can be done manually through the 'Level Calibration'
menu in the OSD or automatically, see the following Auto setup section of
this manual.
The basic process for manual adjustment is to listen to or measure with a
Sound Pressure Level (SPL) meter (more accurate and recommended but
not essential) the level of sound produced by each speaker and set relative
levels for each speaker so that they all sound the same loudness at the
normal listening position. The 551R V2 incorporates a Test Signal Generator
(broad-band white noise) to facilitate this.
Press the OSD button on the remote control then select the 'Level Calibration'
menu. Now turn on the test signal by highlighting this item and pressing the
◄ or ► arrows:
azur 551R
Video In. Select
Test Signal
Audio In. Select
Front L
Tone/Sub Config.
Front R
Speaker Config.
Surr. L
Speaker Distance
Surr. R
Speaker Level
Center
Speaker Xover
Subwoofer
Auto Setup
Surr. LB
Advanced Setup
Surr. RB
OSD Setup
Back: [I/O]
You can now move up and down the channels using the ▲ and ▼ buttons on
the remote. Each time a new channel is selected the test signal will be heard
to move to that channel. Compare the loudness of all channels as heard at
the listening position.
A "rushing" or "hissy" sound should be heard.
Now adjust the channels so they all sound the same (in terms of loudness
only, channels of different frequency responses can sound different in terms
of the "tone" of the sound i.e. more or less hissy).
14
Pick the channel that sounds most different and select it to listen to the
test signal. Now adjust the relative level in dB (using Arrow left/right on
the remote) and continue comparing it to other channels until it is of equal
Meters < >
2.9 < >
loudness. The level can be adjusted up to + or - 10dB in 1dB steps. Repeat
2.9 < >
the process with the next most different channel. Once all channels sound
2.9 < >
the same in terms of loudness, press the OSD button again to save the
2.0 < >
2.0 < >
settings and exit the menu.
2.0 < >
2.0 < >
Auto speaker setup for Distance/Level
Important note: Please remember that test signals generated from Auto
setup are loud.
The 551R V2 includes our simple automatic speaker setup system called
'CAMCAS' (Cambridge Audio Mic Controlled Auto Setup). The system performs
two sets of tests firstly checking which speakers are connected and whether
they are wired correctly and in phase then second automatically measuring
and adjusting the speaker delay timings (i.e. distance setting ) and levels.
Before activating this feature the 'Decode Mode' (i.e. type of speaker
package e.g. 5.1, 7.1) of the 551R V2 and Large/Small/None status of each
speaker must be set correctly as per section 1. This is important as the unit
will only look for and check the speakers you have told it you have.
To perform Auto Distance/Level setup first connect the supplied microphone
to the front Left front panel audio input on the front panel and place it at your
normal listening position in the room.
Press the OSD button on the remote control to access the OSD and select the
option 'Auto Setup'. This will access the 'Auto Setup Menu' as below.
Off < >
0dB < >
0dB < >
0dB < >
0dB < >
0dB < >
0dB < >
0dB < >
0dB < >
Follow the on-screen instructions and press 'Enter' on the remote control
when ready to start the Auto Setup function.
Once activated the OSD will display the message below and the word
'AUTOSETUP' will also be displayed on the front panel of the 551R V2 to
confirm.
A series of test signals will now be output from all of the connected speaker
terminals of the 551R V2 (including the Subwoofer output).
azur 551R
Video In. Select
Please press ENTER to start
Audio In. Select
auto setup.
Tone/Sub Config.
Speaker Config.
Speaker Distance
Speaker Level
WARNING: High Volume Test Tones
Speaker Xover
Auto Setup
Advanced Setup
OSD Setup
Quit: [I/O]
azur 551R
Plug the microphone into the
Mic. input on the front panel
and place the microphone at
normal listening position and
height.
Continue : [ENTER]
azur 551R
The unit is now checking which
speakers are connected and their
phase
Please
wait....
Enter: [ENTER]
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