Sound is fundemantal to most films and/or film viewing experiences, whether it is speech, music or sound effects. Even the earliest silent films were often shown with live musical played in the background. Sound can make imagerny worlds appear more realistic with fimilar sounds, it can provide depth, it establishs characters and the environment, introduce a new scene or prepear the viewer for important information.”
Diegetic vs non-diegetic sound- diegetic sound is any sound that the characters on screen can hear. An example of this is a dialouge between characters. Non-diegetic sound is any sound heard by the audiendce, but the characters on screen cannot hear. An example of this would be tense music playing in a horror scene, this sound is used to signify to the audience that theres going to be a change in the flim.
Non-simultaneous Sound- is sound that takes place before what is happening in the current image. An example is a phone call playing in the background of a current image that happened earlier in the movie.
Direct Sound- is sound that occured during filming.
Synchronous sound- sound that is matched with the acion or movement on screen.
Postsynchronization dubbing- is adding sound to a scene after it has been filmed.
Soft Front Lighting/ hot backlight- A popular film technique in lighting is to use a soft (diffuse) light source from the front and a stronger, light from the back, so that your subject has an edge. The soft front light is known as the fill light and the strong light at the back is known as the backlight.