I believe this is the voice of Scottish singer-songwriter Grant Campbell. From his web site – background/bio/discography:

Campbell’s third & most recent long player ‘Expecting Great Things’ was recorded at home over one sunny afternoon. He decided to experiment with a ‘pan effect’ which has lead to remarkable results; his ghostly baritone voice resonates in one speaker with his enchanting guitar technique in the other, placing the listener centre stage for yet another poignant & crafted sonic treasure. Released in April of this year it is already being touted as one of 2009 finest.

Campbell is a formidable live act, grabbing hearts and bagging admirers every which way along his travels. As well as a string of headline solo shows he has also supported some greats including; Odetta, John Hammond, Michael Hurley, Gary Louris (Jayhawks), Mary Gauthier, The Handsome Family, Howe Gelb (Giant Sand), Alison Moorer, James Blood Ulmer, Micah P Hinson, Califone, Mindy Smith, Alela Diane, Johnny Dowd & Diana Jones.

Other recent work has included a collaboration with leading independent film studio ‘Lionsgate’ to record & produce a cover version of “All the Pretty Little Horses” for the movie ‘The Burrowers’ which premiered at the Toronto Film Festival in 2008.

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