Arranging & Exporting Sounds
Arranging Sounds in a DAW
Once sounds have been created, they need to be arranged into a complete soundtrack that fits the visual media. This is done inside a DAW (Digital Audio Workstation). The arrangement stage is where individual sounds — Foley, ambience, dialogue, underscore, and spot effects — are placed, timed, and balanced against each other.
DAW Arrangement Tools
Modern DAWs provide a powerful set of tools for arranging sounds to picture. You must know the following arrangement tools:
Video file import — the DAW can import a video file so the sound designer sees the visuals directly in the timeline. This allows precise synchronisation of audio to picture.
Audio import — pre-recorded audio files (field recordings, effects library sounds, dialogue takes) are imported into the project and placed on tracks in the timeline.
MIDI import — MIDI data from external sources can be imported and assigned to virtual instruments within the DAW, allowing synthesised sounds to be arranged alongside audio.
Audio and MIDI editing — clips can be cut, moved, copied, trimmed, faded, time-stretched, and pitch-shifted. MIDI notes can be quantised (snapped to a grid), transposed, or velocity-edited.
Layering — multiple sounds are stacked on separate tracks to build a rich, complex soundtrack. For example, a storm scene might layer wind ambience, rain Foley, thunder spot effects, and a tense underscore across four or more tracks.
Automation — Automation records parameter changes over time — for example, gradually fading the ambience volume down as dialogue begins, or sweeping a filter across a synthesised pad. Automation lanes are drawn directly onto tracks.
Markers — reference points placed on the timeline to label important moments (e.g. “Car crash — 01:23”, “Dialogue starts — 02:05”). Markers help the sound designer navigate a long project and ensure key events are hit precisely.
The six DAW arrangement tools you must know are: video file import, audio/MIDI import, audio/MIDI editing, layering, automation, and markers. Each plays a specific role in building a synchronised soundtrack.
Tempo Changes
Tempo changes are used when the pace of the music needs to match changes in the visual action. A chase scene might require an accelerating tempo, while a reflective moment might need a gradual slowing down. In a DAW, tempo changes can be programmed into the tempo map, and all MIDI tracks automatically follow the new tempo.
Sound Arrangement Concepts
Arranging sounds for media is not just about timing — it involves creative decisions about how sounds work together to support the visual story.
Texture refers to how many layers of sound are present and how they interact. A thin texture (one or two sounds) creates a sense of isolation or stillness. A thick texture (many layered sounds) creates richness or chaos.
Mood is the emotional feeling the soundtrack creates. Major keys and warm timbres suggest happiness; minor keys and dissonant harmonies suggest tension or sadness. The sound designer chooses and arranges sounds to match the intended mood of each scene.
Style refers to the genre or aesthetic of the soundtrack. A period drama might use orchestral underscore, while a modern thriller might use electronic textures and processed effects.
Impact is the power or force of a sound moment. High-impact sounds (a loud explosion, a sudden musical hit) grab the audience’s attention. Low-impact sounds (a quiet ambient wash) sit in the background. Contrast between high and low impact creates drama.
Diegetic vs Non-Diegetic Sound
One of the most important concepts in sound arrangement for media is the distinction between diegetic and non-diegetic sound.
Diegetic sound comes from within the world of the story. The characters can hear it. Examples include dialogue between characters, a radio playing music in a room, traffic outside a window, or a phone ringing. Diegetic sound helps establish the reality of the scene.
Non-diegetic sound exists outside the story world. Only the audience hears it. Examples include underscore music, voice-over narration, and dramatic sound effects added for impact. Non-diegetic sound guides the audience’s emotions without the characters being aware of it.
Diegetic sound = characters can hear it (dialogue, a TV in the room, footsteps). Non-diegetic sound = only the audience hears it (underscore, voice-over, dramatic effects). Some sounds can shift between the two — for example, music playing on a character’s headphones (diegetic) that transitions into a full orchestral arrangement (non-diegetic).
Exporting the Final Audio
Once the arrangement is complete, the final step is exporting. The sound designer must choose the correct format for the intended use:
MP4 — a compressed video format widely used for web and mobile delivery. Audio is embedded within the video file.
MOV — Apple’s video format, commonly used in professional video editing workflows. Supports high-quality codecs.
MP3 — a compressed audio format. Smaller file size but some quality is lost due to lossy compression. Suitable for podcasts, web audio, and drafts.
WAV — an uncompressed audio format. Full quality with no data loss, but large file sizes. Industry standard for professional delivery.
AIF (AIFF) — Apple’s uncompressed audio format. Equivalent quality to WAV, used mainly on Mac systems.
The final process is the render of audio to video — combining the finished audio mix with the video file into a single exported media file. The DAW or video editing software bounces (exports) the audio and embeds it into the video container (MP4 or MOV).
Compressed formats: MP3 (audio, lossy), MP4 (video, compressed), MOV (video, compressed). Uncompressed formats: WAV (audio, full quality), AIF (audio, full quality). Always use WAV or AIF for professional delivery; MP3 for web or draft use.