DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   vocaliser
       n 1: an organism that can utter vocal sounds; "an utterer of
            foul oaths"; "is the giraffe a vocalizer?" [syn: utterer,
            vocalizer, vocaliser]
       2: a person who sings [syn: singer, vocalist, vocalizer,
          vocaliser]