About this download

This program will upgrade Audio Driver to Ver. and the following improvements are available in this upgrade version.
1. Resolved symptom of Stereo Mixer item existing in record volume control of some models.
2. Added SPIDIF function for VGN-FS4 Series models.
3. Resolved Jack information for all suitable models.
4. Resolved symptom of pop sound appearing during start of WMP11.

Before installing this upgrade program:

This upgrade program is only suitable for Windows Vista. Please check that the Operating System is Windows Vista before installation. 


Available Downloads:
Audio Driver Upgrade Program Version for Windows Vista

File name: REDAUD-00733504-UN.exe

File size: 35.1 MB (36,868,184 bytes)

File Info

File Name

  • To install WinDVD BD Update Program

File Version


File Size

  • 35.1MB

Release Date

  • 2007-04-06

System Requirements

  • Windows Vista SP2 32bit


IMPORTANT: Before proceeding with the upgrade, disconnect all external hardware devices, including PC Cards etc.
Note: Before proceeding, ensure that the VAIO computer is operated using the supplied AC adapter.
Note: Save all data/files and close all running programs.




 1.  Download the file to a temporary or download directory (Please note this directory for reference later).

 2.  If a previous version of Realtek High Definition Audio Driver exists, uninstall it from Add or Remove Programs of Control Panel.

 3.  After uninstalling, restart the system.

 4.  Go to the directory where the file was downloaded and double-click REDAUD-00733504-UN.exe.

 5.  Follow the instructions displayed in the installation wizard.

 6.  After installation is completed, please restart the computer.
To check if the updating is successful   

1. OpenDevice Manager -> Sound, video and game controllers->Realtek High Definition
Audio and click the Driver tab to check for the information below:

Driver Date is 2007/2/14.
Driver Version is
Digital Signature is Microsoft Windows Hardware Compatibility Publisher.