Crystal Semiconductor Crystal WDM Audio Codec Driver Download

Crystal Semiconductor Drivers

The Crystal WDM Audio Codec is an audio device manufactured by Crystal Semiconductor. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. This update - "wdm4235.ZIP" - has an average rating of 5 out of 5 stars based on 15 reviews, and has been downloaded 591 times. Compatibility for this driver update includes PCs running Windows operating systems such as Windows XP. The total disk space used for this update is 90.7 KB.

15 Ratings (see all reviews)

Supported Models


Crystal PnP Game Port

Crystal SoundFusion(tm) WDM Audio Device

Crystal WDM Audio Codec

Crystal WDM Audio Control Registers

Crystal WDM MPU-401 Compatible


Crystal Semiconductor

Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows ME, Windows 98SE

File Name


beta WDM

Additional Notes

it also works on older chips

it's beta WDM version and newer OSes should have driver built in, just need the .inf file

Uploaded By

prokop (DG Member) on 17-Jan-2005

Ratings & Reviews

See all Crystal Semiconductor Crystal WDM Audio Codec ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
Cwcwdm.inf 3.9 KB 14 May 1998
Cwbwdm.inf 23.1 KB 14 May 1998
readme.txt 3.4 KB 21 May 1998
Cwsb.sys 9.2 KB 14 May 1998
Cwbwdm.sys 77.7 KB 14 May 1998
Cwbmidi.sys 8.4 KB 14 May 1998
setup.exe 85.5 KB 14 May 1998
CWBAUDIO.BIN 8.2 KB 14 May 1998
cwcwdm.sys 3.7 KB 14 May 1998
Cwbase.sys 3.1 KB 14 May 1998

How to Update Crystal WDM Audio Codec Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the Crystal WDM Audio Codec driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter Crystal Semiconductor Crystal WDM Audio Codec into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the Crystal Semiconductor Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

This website is not affiliated with Crystal Semiconductor. All company names/logos are properties of their owners.
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