Audio Subsystem; Audio Subsystem Software; Audio Jack Support - Intel DH77DF Specification

Intel Desktop Board DH77DF Technical Product Specification
1.8

Audio Subsystem

The board supports Intel HD Audio via the Realtek ALC898 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.
• Digital-to-Analog Converters (DAC) with 110 dB SNR (A-weighting) and Analog-to-
Digital Converters (ADC) with 104 dB SNR (A-weighting).
• Ten DAC channels support 16/20/24-bit PCM format for 7.1 channel sound
playback, plus two channels of concurrent independent stereo sound output
(multiple streaming) through the front panel output.
• Three stereo ADCs support 16/20/24-bit PCM format, multiple stereo recording
• Microphone Acoustic Echo Cancellation (AEC), Noise Suppression (NS), and Beam
Forming (BF) technology for voice applications.
• Windows 7 Ultimate certification.
Table 9 lists the supported functions of the front panel and back panel audio jacks.
Table 9. Audio Jack Support
Micro-
Audio Jack phone
FP Green
FP Pink Default
Rear Blue
Rear Green
Rear Pink
Rear Black
Rear Orange
1.8.1

Audio Subsystem Software

The latest audio software and drivers are available from Intel's World Wide Web site.
For information about
Obtaining audio software and drivers
30
Head- Front
phones Speaker
Default
Default
Ctrl panel Default
Rear Center/
Line In Surround
Default
Default
Refer to
Section 1.2, page 17
Side
Sub Surround
Default