Connections

Adjusting the BIOS setting

After connecting the hardware, change the Azalia configuration from DISABLED to ENABLED in the BIOS chipset to make sure the interface is detected. Further information can be found in the BIOS description of the CX2000 documentation.

Connectors for audio devices

The CX2500-0020 devices extend the CX20x0 system with audio interfaces with 5 jack plugs and a Toslink connector for digital signals (SPDIF). Up to 7.1 multi-channel audio can be used.

A "LINE IN" input and five outputs (4 x "LINE OUT" and 1 x "SPDIF OUT") are available. LINE OUT (x202) can also be used for connecting headphones with a maximum output of 200 mW. The audio interfaces are accessed via the operating system. The 3.5 mm sockets are designed for jack plugs.

LINE IN /LINE OUT stereo jack plug (X200/X202/X203/X204):

The audio module operates in stereo mode as standard.

Pin assignment Line In /Line Out:
Signal	Description
L	Left channel
R	Right channel
Ground	Ground

The left channel is transferred via the tip of the jack plug, the right channel via the first ring. The remainder of the sleeve is used for earthing.

MIC IN mono jack plug (X201):

The only existing channel is transferred via the tip, the remainder of the sleeve is used for earthing.

Plug colour code:
Socket		Description
LINE IN, S-SURR OUT	X200	Line level, stereo input
MIC IN	X201	Mono or stereo microphone input
LINE OUT	X202	Front speakers, headphones, stereo output
CEN/LFE out black (normally orange)	X203	Subwoofer and center, stereo output
SURR OUT black	X204	Rear speakers stereo output

SPDIF OUT (x205):

TOSLINK connector for digital signals.

Configuration with the Realtek HD Audio Manager:

Various audio settings are available for improving the sound quality. The Manager is called up via the taskbar. Right-click on the speaker symbol and open the sound manager.

The tab show all playback and recording devices connected with the CX. The orange tick defines the respective device as standard device. This can be changed under "Set default Device" . Further applications (e.g. multi-streaming playback/record) can be found under "Device extended settings ".

Speakers tab

Realtek Audio supports a wide range of speaker configurations. Speaker settings are available for 7.1. channel, 5.1 channel, 4-channel and stereo.

The following section describes the configuration for 7.1. channel:

1.) Plug the audio cable into the respective audio jack, according to the color code.

2.) Under "Speaker Configuration" select 7.1 Speaker:

Click on the blue arrow to trigger an audio signal to verify that the sound comes from the right speaker.

Additional options:

Speaker Fill:

Improves the playback of surround speaker systems.

Swap Center / Subwoofer Output:

Swaps the centre and subwoofer outputs for playing low-frequency sound from the subwoofer.

Enable Bass Management:

Can be used to improve the bass signals.

Optional speakers:

If no subwoofer is used it should be disabled here, in order to optimize the configuration.

Full Range Speakers

Use this option to confirm whether a full-range speaker system is used or a small-range system.

The "Sound Effects" tab offers four setting options:

Environment, Equalizer, Loudness Equalization and Karaoke.

Select a filter under "Environment" :

- none (no filter)

- Sewer Pipe (filter)

- Bathroom (filter)

- Stone Room (filter)

- Arena (filter)

- etc.

"Equalizer" can be used to change the control settings for certain frequency bands. In addition there are default settings for certain types of music, e.g. Pop, Live, Club, Rock, etc. ...

"Loudness Equalization" can be used to compensate loudness differences perceived by the human ear. We recommend enabling Loudness Equalization for DVD playback.

The "Karaoke" setting filters out the voice from a song and defines the pitch of the voice.

The "Room Correction" tab can be used to compensate certain features of your room,

such as the distance and the amplification level of the individual speakers.

The "Default Format " tab adjusts the audio playback matches to the current audio type:

Select CD format for playback/recording a CD, select DVD for playback/recording a DVD. Other combinations of bits and sampling rate can be set manually.

Digital Output (Optical) and Digital Output tabs

Various sound effects and the standard format settings can be set (see above).

S/PDIF-In to S/PDIF-Out pass through mode: Use this setting to specify real-time output of the S/PDIF-In audio signals via S/PDIF-Out.

Microphone tab

This option can be used to enable or disable recording and playback volume, noise suppression and reverberation suppression for the microphone.

For further information please refer to the manufacturer's user manual ( Realtek HD Audio Manager).