Which film director is also a sound designer, Serge de Poligny or Ric Viers?
Serge de Poligny: Serge de Poligny (1903–1983) was a French screenwriter and film director. Ric Viers: Ric Viers (born 1973) is an American sound effects producer. Ric Viers:  He has also worked as a sound designer, film director, screenwriter, and author.
Ric Viers