I have a Compaq with a sound card hopelessly woven in with everything else. I've been picking up a buzz when I record through a microphone and it has steadily grown worse over the last few months. Swapping out the sound card would be risky at best and may not solve the buzz problem.The Aurilium solved the problem beautifully. Installation was an easy plug and play. Sound from the Aurilium's front microphone jack goes in clearly and strong. The Aurilium was inexpensive, easy to install, and completely solved my buzz problem. What else could you ask for?