Samsung S4 Audio Crackling

Hi All,

I have an S4 GT-I9505 and I've noticed some very obvious audio problems when playing music through the 3.5MM jack and apparently I'm not the only one:

http://www.jensign.com/S4Distortion/

http://forum.xda-developers.com/showthread.php?t=2258831

Has anyone else had the same problem?

Would be nice if Samsung could issue some official response to this or fix this via a firmware update (if possible)