xperia s sound problem

[xperiasprob]

Hello Sony After the jelly bean update while playing certain songs only I have noticed a certain but small irritation in the song (not all songs) I have played the songs even in headphones but the sound still comes.I probably think it's a software problem. Please reply Thanks.

[Thommo]

If you think it's a software issue then you could try a settings reset via Settings - Backup and restore then settings reset not Factory reset,

You could also if the reset has no effect do a repair using either PCC or SEUS/SUS found here http://www.sonymobile.com/global-en/tools/update-service/