Intel D945PLRN D945PLRN Technical Product Specification - Page 29

Audio Subsystem - audio driver

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Product Description 1.8 Audio Subsystem The board supports the Intel® High Definition audio subsystem based on 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 1.8.1 Audio Subsystem Software Audio software and drivers are available from Intel's World Wide Web site. For information about Obtaining audio software and drivers Refer to Section 1.2, page 15 1.8.2 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. 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 13, page 48 Table 17, page 50 Section 2.7.1, page 47 29

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Product Description
29
1.8 Audio Subsystem
The board supports the Intel
®
High Definition audio subsystem based on 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
1.8.1
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
1.8.2
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.
For information about
Refer to
The location of the front panel audio connector
Figure 13, page 48
The signal names of the front panel audio connector
Table 17, page 50
The back panel audio connectors
Section 2.7.1, page 47