Lugosi uses the Sonovox to portray the voice of a dead person during a seance .
The Sonovox also appeared in the 1940 film You 'll Find Out starring Kay Kyser and his orchestra , Bela Lugosi , Boris Karloff , and Peter Lorre .
Bela Lugosi uses the Sonovox to portray the voice of a dead person during a seance .
The Sonovox also appeared in the 1940 film You 'll Find Out starring Kay Kyser and his orchestra , Bela Lugosi , Boris Karloff , and Peter Lorre .