The first role of sound effects is to connect the shots. Sound effects are divided into in-screen and out-of-screen sounds, and in some cases the out-of-screen sounds can lead the protagonist to the next clip, as when we hear the sound of a zombie but there is no zombie in the scene, but when we hear the sound of a zombie we associate it with the scene that follows.

The second function is to impart a sense of reality to the image. For example, if we put a sports car ad without sound next to one with sound, we would have a significantly different sensation about the ad. The use of sound enhances the authenticity of the sports automobile and allows the spectator to better visualise the image.

The third role is to render the atmosphere of the picture, such as in the film Midnight Bell, where a simple ringing of the phone gives people a sense of tension and terror, which can intensify the terrible environment. Sound effects are very significant in horror films, and I believe that sound effects in horror films are more prominent in their purpose of presenting the picture’s atmosphere.

Although many characters are portrayed by their morphological and vocal traits, I believe the fourth duty is to portray the character. However, I believe that sound effects can also be employed, for example, different personalities in the same action, completion of the same action when the sound size, rhythm, and speed are not the same. For example, the same simple action of banging on the door, one person knocking on the door makes a light sound, slow rhythm, and one person emits a loud, fast rhythm, and you can tell he has been knocking really hard. We may determine part of their personality simply by the sounds they make, which is a portrayal of the character. If there were no sound effects, the picture would still be a bit thin and not fleshed out enough for the characters to be portrayed.

The video clip I choose is from the American TV series The Walking Dead.

Most of the parts in this clip are quiet atmosphere, so the details of the sound are very important, such as, sound of clothing friction, electric noise.

I can divide this clip into three parts, the first being the sound produced by the protagonist waking up from his bed, the second being the sound of the protagonist in the corridor aisle, and the third being the sound of the protagonist running into the stairway in a panic after seeing the body. Watching the whole clip, I think the most difficult sounds to make are the sound of the zombie banging on the door and the sound of the protagonist pushing over the apparatus in the hospital room. These two sounds contain more elements within them, so I think this was more difficult.

This is a very heavy film, the story of a mother who is overcome with love for her strange son, but as he grows older, his words and actions become more and more dangerous, until he starts to commit crimes.

There is a scene in the film where Eva is walking in the street pulling a pram and to her left is the noise of a drilling machine and to her right is the sound of little Kevin crying. The combination of the two makes Eva very annoyed and this combination of sound and image was very immersive for me. The sound in the first half of the film uses a lot of noise elements, the endless crying of the baby and some city noises, which can reflect the endless irritation that the birth of this baby brings to Eva.

I also heard Chinese instrumental music in the film, which appeared when Eva was teaching Little Kevin to pass the ball and Little Kevin deliberately failed to do so. This instrument, which I assume is the Pipa, plays a piece called Shi mian mai fu, which is a Chinese idiom meaning that there are enemies on all sides and there is a sense of tension. This musical archive I thought was very well used, as was the nerve-wracking sound of the strings, and Eva’s unease and uncontrollable feelings towards her son.

This clip is made of the music of the electric guitar, and the background music has the sound of the bottom drum and bass. At 41 seconds, the string music suddenly began to play with the action of the actor. During this period, accompanied by the sound of earthquake shaking, these are the sound of bass rumbling. After that, a lot of sounds of broken wood, collapsed furniture and broken glass were added to the background sound. This string music is very powerful. When the picture is switched to the picture outside the dream, the loudness of the string music is not as loud as the picture in the dream. When Leonardo was pushed into the water, the string disappeared, but it with the swing of the bass and some delay. In the following picture, the water breaks through the window and enters the room. It feels like a sound effect is used here. Then Leonardo’s slow motion in the bathtub, the bass swing faster, and finally disappeared.

At the beginning, thunder and bass are accompanied by the picture. Later, when the heroine enters this place, the sound of chain collision, the sound much like broken glass and the sound of synthesizer accompany this picture. At 36 seconds, the drum sound similar to adding reverberation gradually increased as the camera slowly approached the heroine, and finally ended with a harsh sound similar to opening an iron door. Delay and reverberation are added when the heroine is shouting others name. With some synthetic sound when Kincaid sucked away from the room, similar to the harsh whistle. Then after they met, before joy appeared, some harsh sounds and chain collision sounds were added, which made it more terrible. When they opened the pipe, they added drums and some terrible synthesizer sounds. When the dog jumps out of the pipe, there is a rising sound effect and the sound of the dog growling. When they were awakened, it was also accompanied by the sound of synthesizer, and finally added a very strange piano sound. The final picture is the woman driving the car, and then there is similar country music in the car.