Specifications

CompuLab Ltd. IPC2 – Hardware Specification Page 46 of 83
4.5 Audio
IPC2 system support analog and digital inputs/outputs via standard 3.5’’ audio jacks. For system
audio specifications refer to Table 5.
4.5.1 Audio Codec General Description
IPC2 incorporates Realtek ALC888S-VC2 audio codec. ALC888S-VC2 is a high-performance 7.1+2
Channel High Definition Audio Codec with two independent S/PDIF outputs. It feature ten DAC
channels that simultaneously support 7.1 sound playback, plus independent stereo sound output
(multiple streaming) through the front panel stereo outputs, and integrate two stereo ADCs that
can support a stereo microphone, and feature Acoustic Echo Cancellation (AEC), Beam Forming
(BF), and Noise Suppression (NS) for voice applications.
The ALC888S-VC2 supports 16/20/24-bit S/DPIF input and output functions with sampling rate of
up to 192 kHz, offering easy connection of PCs to high quality consumer electronic products such
as digital decoders and Minidisk devices. In addition to the standard (primary) S/PDIF output
function, the ALC888S features another independent (secondary) S/PDIF-OUT output and
converters that transport digital audio output to a High Definition Media Interface (HDMI)
transmitter (becoming more common in high-end PCs).
All analog IO are input and output capable, and headphone amplifiers are also integrated at each
analog output. All analog IOs can be re-tasked according to user’s definitions, or automatically
switched.
The ALC888S-VC2 support host audio controller from the Intel ICH series chipset, and also from
any other HDA compatible audio controller. With EAX/Direct Sound 3D/I3DL2/A3D compatibility,
and excellent software utilities like environment sound emulation, multiple-band software
equalizer and dynamic range control, optional Dolby® Digital Live, DTS® CONNECT™, and Dolby®
Home Theater programs, the ALC888S provides an excellent home entertainment package and
game experience for PC users.
The ALC888S-VC2 meets the current WLP3.10 (Windows Logo Program) and future WLP
requirements that become effective from 01 June 2008 (See Enhanced Features section below).
The ALC888S-VC2 also conforms to Intel’s Audio Codec low power state white paper and is ECR
compliant.
4.5.2 Audio Codec Features
 Meets premium audio requirements for Microsoft WLP 3.10
 High-performance DACs with 97dB SNR (A-Weighting), ADCs with 90dB SNR (A-Weighting)
 Ten DAC channels support 16/20/24-bit PCM format for 7.1 sound playback, plus 2 channels
of independent stereo sound output (multiple streaming) through the front panel output
 Two stereo ADCs support 16/20/24-bit PCM format recording simultaneously
 All DACs supports 16/20/24-bit, 44.1k/48k/96k/192kHz sample rate
 All ADCs supports 16/20/24-btt, 44.1k/48k/96k/192kHz sample rate