voice: language; words; speech; expression; signification of feeling or opinion.
collage: a composite object or collection (abstract or concrete) created by the assemblage of various media; especially for a work of art such as text, film, etc.
voice-collage: an artwork created by the assemblage of various media; especially language; words; speech; expression; signification of feeling or opinion.
"As an artist, I use my voice to create artwork: 'voice-collages'." - says an artist.