If your Sound card driver is corrupted, missing or outdated, your sound card is no use. And your computer is no sound out. Then we need to find a sound card driver for your computer. Then how can we do driver download? The best place to download a driver is directly from the hardware manufacturer. Before you can update a driver, you need to find and download the latest version.
Drivers downloaded from the manufacturer will release the new driver for their hardware regularly so the manufacturer is almost always the original source of any driver you find anywhere else so why not download sound card driver from the source?

Follow the steps below to find and download drivers direct from hardware manufacturer websites:

How To Find and Download Drivers From Manufacturer Websites

1 Identify the manufacture and model of the sound card and computer.

2 Find the hardware manufacturer's support website. Mostly all hardware manufacturer in the world has a website with detailed support information including driver downloads, manuals, troubleshooting information, etc. Locate the driver download area of the manufacturer's support site.
3 Using the website's navigation or search abilities, choose the specific hardware you need drivers.
Choose the drivers matched your operating system. For example, if you're using Windows 8, choose the drivers designed for Windows 8.
Important: You must also choose between 32-bit and 64-bit drivers. If you're running a 32-bit version of Windows, you must install 32-bit drivers. If you installed 64-bit drivers on a 32-bit computer, the hardware is still not work.
4 Download the drivers to your computer. Save the downloaded file to your desktop or to another location folder.
Extract the downloaded drivers. Instructions provided on the driver download page on the hardware manufacturer's website should provide detailed instructions on extracting the drivers.

If downloading drivers directly from the manufacturer isn't possible for you. there are several other driver download method available. A Free driver updater programs are a good choice.

OSpeedy Driver Updater is dedicated to offering the best user-experience for you. With several clicks, you can download and install the most suitable driver for your sound card. Based on a huge and comprehensive database and cloud technology, OSpeedy Driver Updater can supply a new driver for any computer and hardware.

Free Download Here: http://download.ospeedy.com/download/driverupdater/setup.exe