My A string has a bit of buzz, and my D string has this nasty metallic sound to it. The metallic sound started up a week or two ago, and the A string just started today. The A doesn't really bother me but the metallic sound is driving me crazy. As far as I can tell it is coming from the D string in the saddle area.

Youtube - https://www.youtube.com/watch?v=UjmGOL-uUSc

Please help me figure out what is causing it, it is driving me nuts.

Edit: I forgot to mention, it is a Yamaha FG700S. I tried changing the D string (The video was after I changed it), and it has not gone away.
Last edited by Humerus at Feb 15, 2014,