Intel D945GNT Product Specification - Page 28

Audio Subsystem - audio drivers

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Intel Desktop Board D945GNT Technical Product Specification 1.9 Audio Subsystem The board supports the Intel High Definition audio subsystem based on the Sigmatel 9223 or the Sigmatel 9220 audio codec. The audio subsystem supports the following features: • Advanced jack sense for the back panel audio jacks that enables the audio codec to recognize the device that is connected to an audio port. The back panel audio jacks are capable of retasking according to user's definition, or can be automatically switched depending on the recognized device type. • Stereo input and output for all back panel jacks • Line out and Mic in functions for front panel audio jacks • A signal-to-noise (S/N) ratio of 95 dB 1.9.1 Audio Subsystem Software Audio software and drivers are available from Intel's World Wide Web site. For information about Refer to Obtaining audio software and drivers Section 1.2, page 15 1.9.2 Audio Connectors The board contains audio connectors on both the back panel and the component side of the board. The front panel audio connector provides mic in and line out signals for the front panel. The functions of the back panel audio connectors are dependent on which subsystem is present. The 8-channel (7.1) audio subsystem is described in Section 1.9.3; the 6-channel (5.1) audio subsystem is described in Section 1.9.4. For information about The location of the front panel audio connector The signal names of the front panel audio connector The back panel audio connectors Refer to Figure 20, page 58 Table 19, page 60 Section 2.8.1, page 55 28

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Intel Desktop Board D945GNT Technical Product Specification
28
1.9 Audio Subsystem
The board supports the Intel High Definition audio subsystem based on the Sigmatel 9223 or the
Sigmatel 9220 audio codec.
The audio subsystem supports the following features:
•
Advanced jack sense for the back panel audio jacks that enables the audio codec to recognize
the device that is connected to an audio port.
The back panel audio jacks are capable of
retasking according to user’s definition, or can be automatically switched depending on the
recognized device type.
•
Stereo input and output for all back panel jacks
•
Line out and Mic in functions for front panel audio jacks
•
A signal-to-noise (S/N) ratio of 95 dB
1.9.1
Audio Subsystem Software
Audio software and drivers are available from Intel’s World Wide Web site.
For information about
Refer to
Obtaining audio software and drivers
Section 1.2, page 15
1.9.2
Audio Connectors
The board contains audio connectors on both the back panel and the component side of the board.
The front panel audio connector provides mic in and line out signals for the front panel.
The
functions of the back panel audio connectors are dependent on which subsystem is present.
The
8-channel (7.1) audio subsystem is described in Section 1.9.3; the 6-channel (5.1) audio subsystem
is described in Section 1.9.4.
For information about
Refer to
The location of the front panel audio connector
Figure 20, page 58
The signal names of the front panel audio connector
Table 19, page 60
The back panel audio connectors
Section 2.8.1, page 55