You have different choices to determine the type of soundcard installed.
1. Through Hardware Mananger
I. Right click on My Computer
II. Select Properties
III. Click on the Hardware Tab
IV. Click on the Device Manager button
2. Through a program such as
Belarc AdvisorI. Download Belarc Advisor
II. Install Belarc Advisor
Profile page will be loaded in web browser.
III. Scroll down and stop when you reach
Multimedia.
3. Through DirectX diagnostics
I. Go to Start
II. Click
runIII. Type DXDIAG
IV. Go to the Sound tab
Report the name mentioned.