Paranormal activity
Before every event, the sound dramatically increases as the action and shots become faster. This is to create a shocked emotion for the viewers. When the action occurs, onomatopoeia sounds are added to create a sense of realism , as well as an increase of a heart beat. Increasing the noise enhances the emotion of being scared and afraid of what could happen.
Towards the end of the trailer, we hear loud, non-diegetic screeches as every shot changes rapidly. Having non-diegetic sound helps create ambiguity.
Titles
During the beginning titles, a high pitch noise was repeated slowly becoming increasingly loud and intense as the trailer continued, mating the pace and storyline.
Towards the end of the trailer, the length of the titles become shorter to keep up with the pace of the action. This is also followed with shorter phrases.
At the beginning of the trailer, a high pitch soundtrack played as we saw happy memories. This contrasted with the low-pitched sound effects as the frightful action begins.
The use of dialogue allows us to understand what is happening in the film. Diegetic sound allows us to identify the genre, repetition of screams tells us the character is in fear or danger therefore suggesting the film could be a horror.
Text
Overlapping this is a diegetic powerful scream of the character. This tells us that the character is fearful and petrified as unlawful strength has pulled her back. The scream is also louder than the non-diegetic sound therefore highlighting the importance of the danger.
Diegetic sound of a women crying is repeated throughout the beginning of the trailer. This automatically tells viewers that she is vulnerable and suggests she is already in danger. The sound of the character crying leaves viewers feeling uneasy.