The sound track had to complement the grand scale of the film. As sound Editor Dave Aston explains:- ``From the first viewing of `Wilfred' it was obvious that it deserved more than the usual light dusting of sound that most short films receive. Attention also had to be given to the mix of live action and animation; every movement of the rock drill in the cut out animation  required a most grotesque metallic sound. In contrast there is a constant noise of background battle that ebbs and flows throughout most of the film. This has in itself over 2000 audio clips. The effects for this and the foreground battle were researched to try and create as authentic sounds as possible. Care was  taken not to overdo the size of the guns and explosions. Battle tactics,  such as the shelling of the enemy by British guns whilst the troops wait  in the trenches to go `over the top,' is conveyed in the use of sound. Moods for various scenes were also set by sound, for example, no-man's land under the barbed wire. The shimmering of the wires and eerie wind still have the battle in the distance. Although as much advantage as possible has been taken to use the dynamic range available, for example the gas scene into the hospital, a more compressed version has been mixed for TV release. On a technical note, `Wilfred' was tracklayed on an AMS  audiofile at The Digital Audio Co and mixed on an AMS logic 2 at Yorkshire  Television facilities."