SOUND

Sound is highly important throughout the production of my trailer.
Whilst looking on different internet sites I came across this, which came under the heading 'DON'T SHOOT! 10 tips to beat bad home video'

Don't use the built-in microphone.

Most consumer camcorders have tiny, low-power microphones. If you're shooting a school play, an interview, or anything in which audio is crucial, you'll achieve far better results with an external mike. First, make sure your camcorder has an audio input--not all models do. For interviews and other close-up work, choose a lavaliere--also known as a lapel mike, the kind you'll often see newscasters wearing. If you're trying to record audio from afar, a shotgun microphone will do the trick.

 From reading this and from shooting parts of my trailer already, I have noticed that the sound quality whilst trying to film can be pretty poor. This is be because when filming the camera can be quite far away and the built in microphone on the camcorder has trouble picking it up, unless your shouting however this isn't very realistic. To overcome this I have decided to see how I can enhance the sound whilst editing and if this doeesn't prove successful, I shall use an external microphone to re shoot the scene or dubb the voice over the top.

 Sound FX

• Hard sound effects are common sounds that appear on screen, such as door slams, weapons firing, and cars driving by.
• Background (or BG) sound effects are sounds that do not explicitly synchronize with the picture, but indicate setting to the audience, such as forest sounds, the buzzing of fluorescent lights, and car interiors. The sound of people talking in the background is also considered a "BG," but only if the speaker is unintelligible and the language is unrecognizable. These background noises are also called ambience.
• Design sound effects are sounds that do not normally occur in nature, or are impossible to record in nature. These sounds are used to suggest futuristic technology in a science fiction film, or are used in a musical fashion to create an emotional mood

For the use of sound FX, I found websites which could be used which provide copyright free effects. One website I have found provides these to my knowledge free of charge, the only problem is if they fit our trailer and if they would sound effective enough. If they don't then we could provide our own effects in through using the equipment in our music department.

http://www.freesfx.co.uk/soundeffects/horror_sci-fi/
This provides sound FX free of charge, hopefully I will be able to find one thats effective enough and fits our trailer. By using these it would mean downloading an array of effects and fitting them together to provide one effect or eerie music, this could be achieved when editing.

 Music

Establish a Mood 

At the beginning of a movie or scene, music is often used (along with establishing shots) to help set a tone, before any dramatic action takes place. In the beginning of a horror film, shots of a desolate, empty street may have ominous, foreboding music accompanying them, to establish that the action about to transpire is very scary.

Heighten Drama

Music score is a basic and effective way to heighten the drama of a given scene in a film. Regardless of the genre, a film score can add to nearly any scene. In an action set-piece, the music will match the action in terms of power and intensity. In a comedy scene, the score can be expected to be as light or silly as the action taking place within the scene.