This lines could be seen as examples of sensory imaginary. More precisely it is connected to smell because of the potato and sight because of how this person is found "sitting, surrounded.." it might be said that the combination of these two images could give the reader a vision of what the writer is trying to convey.
I'd say its personification, because it says "i hear america singing." and america can't physically sing.
Animation is a method in which figures are manipulated to appear as moving images. In traditional animation, images are drawn or painted by hand on transparent celluloid sheets to be photographed and exhibited on film. Today, most animations are made with computer-generated imagery (CGI).
