Music.

The music we chose for our horror film had to include sounds that created tension. We decided to have music that created a climax to help make the audience feel fear. We added in sound effects that created the sound of someone knocking on the door and dropping something. We did this because it had to show that there was someone in the house. We had to insert the sound effects at the right time so that it fitted in with our reactions. We first took out the dialogue in hope that it would add more fear but we saw that it was a mistake because for one, our mouths were moving and also because without the dialogue you couldn't sense the true feelings of the characters or completely understand what happened.