Sound is a
very significant aspect to take into careful consideration when creating a
trailer. Sound can help a trailer tell the plot, express emotions, create a
dramatic atmosphere and engage the audience more. Another important component
of the use of sound is that it can help the trailer to be more realistic if
appropriate or synchronous sounds are used wisely. In most
trailers, usually the term Sound Bridge is used which implies continuous sound
between each shot in a trailer to keep the plot to flow effectively.
There are
two main elements of sound which is diegetic and non-diegetic sounds. Diegetic
sound is where the source of the sound can be seen. Non-diegetic is sounds used
where it not possible to see it from the source provided. Another factor in
sound is ambient sounds. These are sounds in the surrounding location of
filming tend to create more realism in a trailer.
A voiceover
is a very common convention used in a trailer which is used to tell the narrative/plot
of the film. A voiceover is usually recorded in a very quiet environment as its
main function is to promote the film further. This can be used on media
platforms such as a radio where only audio is used. The voiceover will tell
specific details about the film such as the film title, any famous actors and
the release date.
In a horror
film trailer, conventional music or sound patterns/effects are used which can
vary on events. For example, usually when something important or dramatic is
going to occur, the music or sound is of a deep and bass sound to emphasis a
crucial part of the trailer. This is usually slow and then the pace of the
sound picks up to add more suspense to the target audience.
