Hi, I am using Microsoft's kernel sreaming sample code (DirectKS). I create a render as well as capture pin in my code. This works fine with my laptop's built in audio card. But when I use the same code with a USB audio card, the output audio is scratchy. Its like the audio quality is not good. You can still hear the song being played but it won't be clear....it is scratchy. I hope I have described my problem well. If anybody can provide any guidance in this regard, I will be grateful. Regards, Pallavi