Sound Creation for Media
Why Sound Creation Matters
Sound creation is the process of producing audio specifically designed for use in media. Without carefully created sound, a film would feel flat, a video game would lack immersion, and an advertisement would fail to grab attention. Understanding the different forms of media and types of sound creation is the starting point for this unit.
Forms of Media Using Sound Creation
Sound creation is used across a wide range of media. Each form has its own requirements, but all rely on carefully designed audio to enhance the audience’s experience.
The ten forms of media you must know are: radio broadcasts, movies, TV shows, video games, advertisements, jingles, podcasts, animations, theatre, and installations.
Radio broadcasts rely entirely on sound — music, speech, and effects must tell the whole story without any visual support. Movies and TV shows use sound to build atmosphere, convey emotion, and guide the viewer’s attention. Video games require interactive sound that responds to the player’s actions in real time.
Advertisements use short, punchy sound design to make products memorable. A jingle is listed as its own form of media — a brief, catchy tune designed to stick in the listener’s mind and associate with a product or brand.
Podcasts use voice recording, music beds, and effects to create engaging audio-only content. Animations need all sounds to be created from scratch because there is no live-action audio to capture. Theatre uses live and pre-recorded sound effects and music to support performances. Installations are immersive art or exhibition spaces that use sound to create an environment or atmosphere for visitors.
Types of Sound Creation
There are six main types of sound creation. Each serves a different purpose within a media production.
Foley
Foley is the art of creating realistic, everyday sounds in a studio. Foley artists watch the visual footage and perform the sounds in sync — for example, walking on gravel to create footstep sounds, or crumpling paper to simulate fire. These sounds are recorded and layered into the final production to make it feel real.
Ambience
Ambience (also called atmosphere or room tone) is the background sound that sets the scene. It tells the audience where and when the action takes place. A busy city street has traffic and voices. A forest has birdsong and rustling leaves. Without ambience, a scene feels unnaturally silent and disconnected.
Dialogue
Dialogue is recorded speech between characters. In film and TV, dialogue is captured on set using boom microphones and lavalier mics, then cleaned and balanced in post-production. If on-set recording is unusable, actors re-record their lines in a studio — a process called ADR (Automated Dialogue Replacement).
Voice-overs
A voice-over is a piece of narration or commentary recorded separately and placed over the visuals. Voice-overs are common in documentaries, advertisements, trailers, and podcasts. The voice-over artist does not appear on screen — they provide information, set the tone, or guide the audience’s understanding.
Underscore
An underscore is background music that supports the visuals without drawing attention to itself. It sits beneath the dialogue and action, reinforcing the mood of a scene. A tense underscore might use sustained low strings, while a romantic underscore might feature gentle piano. The audience may not consciously notice the underscore, but it shapes how they feel about what they are watching.
The six types of sound creation are: Foley (recreated everyday sounds), ambience (background environment sounds), dialogue (character speech), voice-overs (off-screen narration), underscore (background music for mood), and spot effects (specific one-off sounds synced to events).
Spot Effects
Spot effects are individual sound effects that are timed precisely to a specific on-screen event. A gunshot, a car horn, a doorbell, or a glass smashing are all spot effects. Unlike ambience (which is continuous), a spot effect is a one-off sound triggered at an exact moment. Spot effects can be sourced from effects libraries, created using Foley techniques, or synthesised digitally.
Imagine a scene in a thriller where a detective enters a dark warehouse. The ambience includes distant traffic and a low hum from overhead lights. Foley provides the detective’s echoing footsteps on concrete. A tense underscore builds with sustained cello. The detective speaks into a radio — this is dialogue. A narrator describes the scene — this is a voice-over. A door slams shut behind them — this is a spot effect. All six types work together to create a convincing, immersive experience.
Foley and spot effects are different. Foley recreates everyday, continuous sounds performed in sync with visuals (e.g. footsteps, clothing rustle). Spot effects are single, precisely timed events (e.g. an explosion, a phone ring). Foley is always performed live; spot effects may come from libraries, synthesis, or Foley.