Bedienungsanleitung Cambridge Audio Azur 351R (Seite 13 von 22) (Englisch)

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351Razur

ENGLISH

The following two sections can be performed by Cambridge Audio CAMCAS

procedure so you can if you wish jump straight to that section. However, it is

recommended that you do read these sections to understand the reasons for

these settings and their implications.

Speaker Delay

Because the speakers in a surround sound system are usually different

distances from the listener the 351R incorporates the ability to apply a

variable digital delay to each of the channels so that the sound from each

arrives at the same time at the listening position for best surround-sound

effect.

To set the delay times automatically, refer to the "Auto setup" section of this

manual.

To set the delay times manually, simply measure the distances from the

listening position to each speaker as shown in the following diagram:

No delay setting for the subwoofer is necessary.

Set the distances in the OSD Speaker Distance menu to the nearest value

in metres or feet (1 foot = 0.3 metres). The speed of sound is approx 340

metres per second, the 351R thus introduces approx 3mS of delay per meter

of distance set.

Go to the 'Speaker Distance' and highlight each speaker in turn. Set the

distance to the nearest value to that which you measured by using the Left

and Right arrows (the values do not need to be exact):

Press the

button to exit the menu.

2. Speaker setup

1 23

4 5

1 = Front Left speaker

2 = Front Right speaker

3 = Centre speaker

4 = Surround Left speaker

5 = Surround Right speaker

6 = Subwoofer (can be placed

almost anywhere)

azur 351R

Audio In. Select

Tone/Sub Config.

Speaker Config.

Speaker Distance

Speaker Level

Speaker Xover

Auto Setup

Dolby/DTS Setup

OSD Setup

Unit

Front L

Front R

Center

Surr. L

Surr. R

Quit : [I/O] Enter : [ENTER]

Meters <>

2.9 <>

2.0 <>

Level calibration

The 351R 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 351R incorporates a Test Signal Generator (broad-

band white noise) to facilitate this.

Press the

button on the remote control to turn on the OSD then select the

'Speaker Level' menu. Now turn on the test signal by highlighting this item

and pressing the Left or Right arrows:

You can now move up and down the channels using Volume / 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).

Pick the channel that sounds most different and select it to listen to the

test signal. Now adjust the relative level in dB (using the / buttons on

the remote) and continue comparing it to other channels until it is of equal

loudness. The level can be adjusted up to + or - 10dB in 1dB steps. Repeat

the process with the next most different channel. Once all channels sound

the same in terms of loudness, press the OSD button again to save the

settings and exit the menu.

CAMCAS Auto speaker setup for Distance/Level

The 351R includes our simple automatic speaker setup system called

'CAMCAS' (Cambridge Audio Mic Controlled Auto Setup). The system performs

two sets of tests rstly checking which speakers are connected and whether

they are wired correctly and in phase then a 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) 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.

azur 351R

Audio In. Select

Tone/Sub Config.

Speaker Config.

Speaker Distance

Speaker Level

Speaker Xover

Auto Setup

Dolby/DTS Setup

OSD Setup

Test Signal

Front L

Front R

Surr. L

Surr. R

Center

Subwoofer

Quit : [I/O] Enter : [ENTER]

Off <>

0dB <>

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Cambridge Audio Azur 351R Seite 13

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