VIA Vinyl HD Audio codecs represent the next generation of sound quality, supporting the high definition HD Audio standard for a whole new immersive surround sound experience. The VIA Vinyl VT1812S is a low power, high-fidelity 4-channel high definition audio codec designed for laptop audio systems.

The VIA Vinyl VT1812S integrates 2 24-bit stereo digital-to-analog converters (DAC) and two stereo analog-to-digital converters (ADC), supporting audio sample rates up to 192 kHz and is compatible with the Intel® High Definition Audio Specification.

Supporting advanced VoIP and music enhancement functions, the VIA Vinyl VT1812S features two independent 16-, 20-, 24-bit S/PDIF TX Output channels that support sampling rates of 48 kHz, 96 kHz, 192 kHz, 44.1 kHz, and 88.2 kHz. The second S/PDIF TX Out is dedicated for digital audio output to a HDMI transmitter.

An analog microphone features four sets of adjustable Vref-Out pins for microphone bias, while a digital microphone features mono and stereo support, with both supporting software selectable boost gain. The stereo ADCs and microphone array can support Acoustic Echo Cancellation (AEC), Beam Forming (BF), and Noise Suppression (NS) technologies. A high quality analog mixer is used to support A-A path.

The VIA Vinyl VT1812S is embedded with software utilities such as environment emulation, EQ, extender, and optional sound effects, including support for QSound, DTS Connect, SRS Lab and Creative.

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Product Features

High Definition Codec

  • Intel® High Definition Audio Specification Rev.1.0 Compliant High Audio Quality
  • Exceeds Microsoft® Windows® Logo Program (WLP) Requirements
  • High-performance ADCs with 98dB SNR, DACs with 100dB SNR Various Output Format
  • 2 Stereo DACs Output Pairs supporting 16/20/24-bit, 48/96/192/44.1/88.2 kHz sample rate
  • 2 Stereo ADCs supporting 16/20/24-bit, 44.1K/48K/96K/192KHz sample rate
  • 1 independent 16/24-bit S/PDIF TX Output supporting 16/20/24-bit, 48K/96K/44.1K/88.2KHz sample rate


  • HPF In ADC Path for DC Removal
  • High performance analog mixer for AA path
  • Two Jack Detection Pins

Power Supply

  • Digital: 3.3V
  • Analog: 5V
  • Supports External Amplifier Power Down (EPAD)
  • Power Management and Enhanced Power Saving Features


  • Available in 48-Pin LQFP Lead-Free and RoHS compliant package


  • Laptop PCs

*with selected versions of WinDVD and PowerDVD

VIA Technologies Japan株式会社