Sound and Foley, Diegetic and Non-Diegetic sounds

I learned what is meant by Foley and that by including it into a film could give a good effect. An example of this is that say someone is walking and you cant hear the sound then you can record the sound of someone walking and put it in sync with the pictures. Foley can be created by just recording the sound of what the picture is trying to say and then adding it in. I also understand how to add the sound into a shot. This is done by recording the shot without the sound and then recording the sound separately. After this has been done you can change the sounds until it is the way you want it then include it to the sequence.

Diegetic sounds are those of which can be heard by a character within a film, an example is is a character speaks  or if a piece of furniture is moved. The character in the film an the audience hear the same thing. Whereas Non-diegetic sounds are those which cannot be heard by a character for example a soundtrack or a phone conversation that not all characters can hear. This is intended only for the audience.

By looking at different YouTube clips it helped me to understand what the terminology means and how including this in our thriller film would be beneficial to us and to the audience. By including Foley it will give a more defined specific sound to certain scenes and images.