THE SOUND

The first projections of films were carried out at improvised sites with great sound pollution. Experiments were done to reduce or eliminate this and to focus attention on the stories, because the brain has a great ability to correlate what you see with what you hear, even if their origin is not common. They tried to lead actors to recite dialogues, but it was not practical, tried to create sound effects of noises main story (steps,beatings, shootings ...).

The most impressed was the accompaniment of live music, which previously had lived with fair performances, dance, puppetry, circus, cabaret, theatre ... Even try to build the sound through images.

Music is incorporated as the only extra sound element during projection, which meant a great advance for cinematic expression, to create the support, the thread of the stories. Most of the cinemas had no orchestra, so the musicians accompanied the films with flutes, organs ... Testing, testing, until the system Vitaphone (sound recording on a disc and sync with the film) to digital sound.

The first film Sonora was The Jazz Singer (1927) Alan Crosland. http://www.youtube.com/watch?v=v_4O5bpvxAA

The sound film makes the silence speak. Signs disappear from the screens to make the characters through their own voice, make explicit their feelings, their emotions, we can even hear your thoughts. Now are the sound effects and music subordinate to dialogue?.

The sound has a spatial dimension. We know that the space of the action of the narrative is not limited to what we see on the screen. The sound can come from a character or a space object belonging to the history of film (diegetic), or outside, beyond what we see on screen (non-diegetic).

Here in this fragment of Wings of desire we have a example.http://www.youtube.com/watch?v=KwzZvTJ5cHY

Sound also can represent time, in different ways, pairing with the image, we heard at the same time we see the sound source that produces it (synchronous sound). When sound is asynchronous, the result is quite disturbing but you can get another imaginative effects.