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Realtek Audio Driver 4.06 WHQL

Realtek Audio Driver 4.06 WHQL

Realtek Audio Driver 4.06 for Windows 98/Me/2000/XP/2003 (32/64 bits) supports all ALC series audio chipsets from ALC101 up to ALC861. It is used as onboard sound on many motherboards.

The ALC650 is an 18-bit, full duplex AC’97 2.2 compatible stereo audio CODEC designed for PC multimedia systems, including host/soft audio and AMR/CNR based designs. Moreover, it incorporates proprietary converter technology to achieve a high SNR, greater than 90 dB.

The ALC650 AC’97 CODEC supports multiple CODEC extensions with independent variable sampling rates and built-in 3D effects.

The CODEC provides two pairs of stereo outputs with independent volume controls, a mono output, and multiple stereo and mono inputs, along with flexible mixing, gain and mute functions to provide a complete integrated audio solution for PCs.

The digital interface circuitry of the ALC650 CODEC operates from a 5V/3.3V power supply with EAPD (External Amplifier Power Down) control for use in notebook and PC applications.

Supports host/soft audio from Intel 810/815/820/845 chipsets as well as audio controller based VIA/SIS/ALI chipsets. Finally, internal PLL circuits generate required timing signals, eliminating the need for external clocking devices.


  • Multimedia PCs
  • 3D PC games
  • Information appliances (IA)
  • Voice recognition
  • Audio conferencing

Features of Realtek Audio Driver 4.06:

  • High-performance CODEC with high S/N ratio (>90 dB)
  • 18-bit ADC and 20-bit DAC resolution
  • Compliant with AC’97 2.2 specifications
  • 18-bit stereo full-duplex CODEC with independent and variable sampling rate
  • 4 analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD, VIDEO, AUX
  • 2 analog line-level mono inputs: PC_BEEP, PHONE_IN
  • Mono output with 5-bit volume control
  • Stereo output with 5-bit volume control
  • 6 channel slot selectable DAC output for multi-channel applications
  • 2 MIC inputs, which are software selectable
  • Power management capabilities
  • 3D Stereo enhancement
  • Embedded 50mW/20ohm OP at front LINE output
  • External amplifier power down capability
  • Digital S/PDIF output
  • Digital S/PDIF input (ALC650 Rev. E or later)
  • No external crystal/clock required
  • Supports 1 general purpose I/O pin
  • Power supply: digital: 3.3V; analog: 5V/3.3V
  • Standard 48-pin LQFP package

This download contains the latest audio drivers, software and utilities:

  • WDM driver for Win98/WinMe/Win2000/WinXP :
  • WDM driver for Windows x64 :
  • VXD driver for Win95 :
  • VXD Software wavetable driver :
  • NT4 driver for Windows NT4 :
  • NT4 software wavetable driver :
  • RtlRack for Win98/Me/2000/XP :
  • AvRack for Win95/NT4 : 2003.4.4.1
  • Realtek Soundman :
  • Sound Effect Manager (CPL) :
  • Realtek Sound Effect Manager(RtlCpl) :
  • Realtek Sound Effect Manager for NT4 :

Changes in Realtek Audio Driver 4.06:

  • For special customize settings.
  • Update Realtek 3D engine.

Homepage – https://www.realtek.com.com

Size: 17.9 MB

DOWNLOAD Realtek AC’97 ALC650 Audio Driver 4.06 WHQL

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