Dear Experts,

I am using more then 3 years Blackmagic Intensity pro PCI-Express capture card with Linux, Mac OSX, Windows operating system. While using the card with Linux OS (Ubuntu 11, 12, 13, 14.04) and Blackmagic latest drivers i have constantly this white static noise when i use minijack microphones. But when i use external USB XLR microphone it get resolved.

With same hardware when i use Windows 8.1 OS (not Linux), with same Blackmagic card, same microphone, same PC i have not a single white static noise which i noticed while using Linux.

Same issue i simulated with OSX 10.9.4 and Windows 8.1, where i do not have white static noise, but Linux when used with Blackmagic intensity pro then there is this constant white static noise.

I had this problem about 3 years now, and still no solution unless i move to Windows 8.1 or OSX.

Please kindly advise.

Thank you /Sha