Bedienungsanleitung Cambridge Audio Azur 752BD (Seite 37 von 40) (Englisch)

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Steep lter frequency response

-80

-60

-40

-20

-200

-180

-160

-140

-120

-100

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1

Linear phase lter

Steep lter

frequency/FS (input sampling rate)

Magnitude (dB)

Our Steep lter is a linear phase lter that has been optimised for stop

band attenuation of close-in aliasing images. Here we have traded a

little attenuation of the very highest frequency response (for 44.1kHz

sampled material it would be -2dB at 20kHz) and a little more pre- and

post-ringing for a very steep attenuation just outside the pass band. The

Steep lter is able to attenuate aliasing at 22kHz by some 80dB.

Note: All lters exhibit the same ultimate roll-off of approximately 140dB.

The following table shows the lter stop band attenuation for 44.1kHz

material as an example:

Linear Phase Minimum Phase Steep

Roll-off at 20kHz -0.1dB -0.1dB -2dB

Roll-off at 22kHz -10dB -10dB -82dB

Ultimate roll-off 140dB 140dB 140dB

We encourage you to experiment with the lters to determine which

sound best to your ears and using your source equipment/programme

material.

0 20 40 60 80 100 120 140 160 180

Time (samples)

Amplitude

Steep lter impulse response

Troubleshooting

There is no power

Ensure the AC power cord is connected securely.

Ensure the plug is fully inserted into the wall socket and is switched on.

Check fuse in the mains plug or adaptor.

The player will not read the disc

Check the disc is not loaded upside down.

Check that the disc is not too scratched or dirty.

The disc type is not supported by this unit.

Check its region and type.

Functions on some discs may not work on this unit. This is not a

malfunction of the player.

There is no sound

Ensure that the amplier is set correctly.

Check that the interconnects are inserted correctly.

Check if the output has been set incorrectly to Bitstream or LPCM.

The disc is skipping

Check that the disc is not too scratched or dirty.

Ensure that the 752BD is on a rm surface and not subject to vibrations.

A low hum or buzz sound can be heard

Power cords or lighting placed near this product.

Analogue inputs not connected securely.

No sound from the rear speakers

Source being played is not recorded in surround-sound.

Unit has been put to stereo or other down-mix mode.

No sound from the centre speaker

A stereo mode has been selected.

Remote control is not working

The batteries are at.

The remote is too far from the unit or out of the effective range.

Files on a connected USB device do not play

If the USB drive is incompatible, or the player encounters errors while

reading the USB drive or ash memory card, the screen displays

"Device

Error

". In this case please verify that the USB drive is compatible, and try

to unplug the device and re-insert again.

In some cases, an incompatible USB device may cause the 752BD to

stop responding. If this occurs simply turn off the power, remove the USB

device, and turn the player back on.

The le type is incompatible. Check the supported le types.

The drive requires too much power from the USB socket.

Problems using HDMI

Ensure that your screen supports HDCP (High-Denition Copy Protection).

Ensure your screen is capable of displaying the resolution being output

by the Blu-ray player.

Note: Cables which run over 5m may cause sync or grounding issues.

For more frequently asked questions (FAQs), technical advice and

information on getting the most out of your 752BD, please visit the

Support section on Cambridge Audio’s website:

www.cambridgeaudio.com/support.php

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Cambridge Audio Azur 752BD Seite 37

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