For my "Research Methods" module I had an assignment to write a research paper related to my collaborative game module. I choose to write a paper on voice pitch in horror games as there was nothing out there that covers this topic but only in horror movies.
I wanted to find out if voice pitch, low, medium or high, had a greater effect on the user in terms of a hostage in need of rescue from them shouting for help, being appreciative for saving them or their death cry. Our collaborative team host a play test session of the game "Carnival of Evil" for 2nd year computer game students and got them to complete a survey afterwards.
The game had the 3 different voice pitches for the hostage and the participants could answer which pitch they preferred in the survey. See the research paper below for the full story.