Week 5: Sound 101
To Do By Class
- Complete Continuity Assignment DUE Thursday:
Film and edit a 30–60s scene (10–20 cuts) that demonstrates basic continuity with each edit: POV shots, shot-reverse-shot, match-on-action, and spatial continuity to narrate a coherent sequence of events. Vary camera position (CU, MS, WS) and framing (level, high, low).
Module Notes
InClass Time Frames Assignments
Continuity Assignments
Sound & Image
Sound design for cinema is a conversation between sound and image.
Sound can be in sync with the image, such as matching dialogue.
Sound can also be in collision with the image, appearing asynchronous or “non-diegetic,” such as an evocative music soundtrack.
Sound work typically includes:
- Dialogue
- Foley/effects
- Ambience/room tone
- Voice-over
- Music
- Simple mixing (balancing levels and timing edits) to guide attention
Phone Recording
Without dedicated sound equipment such as digital recorders and quality microphones, a second smartphone can be used to capture decent digital audio recordings. This “audio phone” can serve as the microphone source, with its recordings later matched to the video captured on the other phone.
- Use airplane mode to avoid interference or notifications.
- Point the phone mic at the source (bottom edge or back mic depending on model).
- Hold steady or place on a stand; avoid rubbing fingers on the case.
- Record as close as possible (6–12 inches for voices).
- Monitor levels visually in the voice-memo or recording app; avoid peaking (red).
- Use a hand clap at the start for syncing sound and picture.
- Name/label each take for easy import and editing later.
Key Concepts
- Dual-System (separate audio device) vs. on-camera audio (backup only)
- Room Tone: captures the “silence” of a space for smoother edits
- Foley vs. SFX: record custom close-mic sounds vs. download library sounds
- Diegetic / Non-diegetic: in-world vs. outside-the-world sounds
- J-Cut: audio from the next shot/scene begins before the picture changes. You hear what is coming before you see it.
- L-Cut: audio from the current shot/scene continues after the picture has changed. You keep hearing what came before while seeing the next image.
- Sync: use a visible clap and align the spike in the waveform
Audio Formats & Ideal Equipment
File Types:
- WAV (48kHz, 24-bit): uncompressed, highest quality; standard for video post-production.
- MP3: compressed, smaller file size; fine for reference or web but not ideal for editing.
- AAC / M4A: compressed formats used by phones; acceptable as a source if WAV not possible.
Ideal Equipment (beyond phones):
- Lavalier mic: small clip-on mic for clean dialogue capture.
- Shotgun mic: directional mic on a boom for isolating sound at a distance.
- Boom pole: allows mic placement above/outside frame.
- Handheld recorder (Zoom/Tascam): dedicated dual-system recording at higher quality than phones.
The Conversation, Francis Ford Coppola
Ben Burtt and the Light Saber
Munich” – Steven Spielberg and Ben Burtt (Sound Design)
Sound Directs Attention
- Selection: isolate one important sound from a complex environment.
- Perspective: make distant sounds perceptually “close.”
- Offscreen space: let sound reveal what the camera doesn't show.
- Masking: one sound can prevent us—or a character—from hearing another.
- Rhythm: organize narrative through a sequence of sonic events.
- Subtraction: removing ambience can be more powerful than adding music.
- Subjectivity: gradually shift from realistic sound toward what a character seems to experience.
In-Class Group Exercise: Sound Narrative
In groups of 3–4, develop and shoot a short 30-second narrative in which sound plays an important role. Keep the story simple. The goal is to create a situation in which what we hear helps direct attention, create anticipation, reveal information, or change how we understand the image.
Possible Starting Ideas
- An annoying sound: someone is making a small but irritating sound in a quiet space.
- An unknown sound: a character hears a strange sound and tries to discover where it is coming from.
- The sound that shouldn't be there: someone hears a familiar sound in a place where it doesn't seem to belong.
- Trying to be quiet: a character attempts to do something silently, but every small action suddenly seems loud.
- The misunderstood sound: a sound initially suggests one thing, but its source is eventually revealed to be something completely different.
Visual Storytelling
Although this exercise focuses on sound, continue using the visual principles from our previous assignments. Pay attention to:
- Shot duration and editing rhythm
- Framing and camera position
- Continuity between shots
- Intentional uses of discontinuity
- What is shown and what remains offscreen
Sound Recording
Record sound separately on a second phone whenever possible. The sound recorded by the camera can be used as a reference track for synchronizing the separately recorded audio.
Your group should capture:
- Dialogue: keep dialogue minimal—one or two sentences is enough.
- Room tone / environmental sound: record at least 30 seconds of the natural sound of your location.
- Wild sound: separately record important sounds from the scene without filming them—for example, a door closing, footsteps, a chair moving, a phone vibrating, or another important sound source.
- Foley / close-up effects: make clean recordings of several important actions or objects that can later be synchronized with the image.
At the end of class, share all video and audio files with everyone in the group. Each person will use the same source material to create their own individual edit and sound design.
Sound Design Assignment — 5%
Due October 8.
Using the footage and sound recorded by your group, individually edit a 30-second video with a complete sound design. Your finished soundtrack should combine multiple audio layers and use sound intentionally to direct attention, establish space, create rhythm, and shape the viewer's experience of the scene.
Build Your Soundtrack
Your edit should make use of the following kinds of audio:
- Camera audio: use primarily as a reference for synchronization; keep it only when it contributes useful sound.
- Dialogue: synchronize the separately recorded dialogue and make speech clear and audible.
- Foley: synchronize your group's close-up recordings with actions in the image.
- Recorded wild sound: use separately recorded sounds to strengthen or replace sounds from the original recording.
- Additional sound effects: search public-domain sound libraries or create appropriate effects with AI sound-generation tools.
- Room tone / environmental sound: establish the acoustic space and create smooth transitions between shots.
- Music: if appropriate, use public-domain, Creative Commons, or AI-generated music. Music should support the scene rather than overwhelm the other sounds.
Mixing
Do not simply place sounds on the timeline. Mix the soundtrack. Decide what the audience should hear most clearly at each moment.
- Adjust levels so important sounds are clear and nothing clips.
- Balance dialogue, effects, ambience, and music.
- Use audio fades and crossfades to create smooth transitions.
- Raise or lower individual sounds to direct the viewer's attention.
- Use silence or reduced ambience intentionally when appropriate.
- Listen to the entire mix with headphones before exporting.
Sound Resources
- Freesound.org (public-domain ambience & effects)