Recording sound for film starts before anyone turns on a recorder. The useful storyboard question is not "What microphone should we use?" It is "Can this shot be performed, framed, and covered while still capturing clean dialogue?"
This guide treats production sound as a pre-shoot checklist. If you are planning the mix, Foley, music, or transitions, use the separate post-production sound storyboard guide. If you need the camera department handoff, pair this with the shot lists and storyboards guide and the editing techniques storyboard guide.
The production sound pass
Run this pass after the first visual board exists and before the shot list is locked. Look at every panel that contains dialogue, a practical sound source, or a noisy location. Add a short audio note that a small crew can act on without guessing.
| Sound risk | Storyboard note to add | Production decision |
|---|---|---|
| Dialogue under movement | "Actor crosses window, line starts after stop" | Hold the line until the boom can settle |
| Wide frame with quiet speech | "Plan hidden lav or tighter coverage for line" | Capture a usable close backup |
| Noisy location | "Scout HVAC, traffic, fridge, crowd bed" | Pick time of day or kill controllable noise |
| Overlapping action | "Cup hit must not cover final word" | Separate prop action from key dialogue |
| Offscreen voice | "Wild line after take; match doorway distance" | Record clean alternate without camera pressure |
| Room tone | "30 seconds after setup, same room state" | Capture tone before the company moves on |
Location scout notes belong in the board
A visually good location can be an audio trap. The storyboard should carry the scout's sound findings in plain language: "glass wall facing traffic," "espresso machine behind subject," "high ceiling echo," "school hallway bell at 10:00." These notes are not decoration. They decide whether the shot needs a tighter frame, a different blocking pattern, or a planned wild line.
In Story2Board, put these details in the shot note rather than burying them in a separate document. A shot with location: apartment kitchen, shotSize: medium close-up, dialogue: apology line, and soundDesign: fridge hum, record room tone, kill ice maker is easier to hand off than a beautiful panel that says nothing about the appliance behind the actor. The board becomes the shared place where visual blocking and audio risk meet.
Mic distance changes coverage
The common mistake is to storyboard only what the audience sees. Sound needs one more layer: where the microphone can live. A wide master with two actors twelve feet apart may look elegant, but it may also force the boom too far from both mouths. If the scene depends on quiet dialogue, the board should include tighter coverage or a blocking adjustment.
Use three marks:
- Primary line - the line that must be clean.
- Mic path - where the boom or lav can realistically sit.
- Backup coverage - the closer shot that protects the line if the wide is compromised.
That does not mean every scene becomes conservative. It means the board admits the trade. A noisy wide can stay if the plan also includes a clean close-up or wild line.
Room tone and wild lines are storyboard assets
Room tone is easy to forget because it is invisible. Wild lines are easy to skip because everyone thinks the take was fine. Put both in the board when the scene has a real audio risk.
| Asset | When to schedule it | What to write |
|---|---|---|
| Room tone | After the room is dressed and before reset | "Same lights, same doors, no crew movement, 30 sec" |
| Wild line | After a noisy take or complex blocking | "Repeat final line facing same direction, same energy" |
| Prop isolation | When an object masks speech | "Keys, door latch, cup setdown clean pass" |
| Ambience plate | When location has identity | "Street bed without dialogue for edit bridge" |
These notes help post-production later, but they are production sound tasks. Keep them here, not in a generic sound design section.
A clean-audio storyboard example
Scene: a teenager tells her father she failed the audition while he keeps washing dishes.
Weak board: "Medium shot. Dad washes dishes. Daughter confesses. Cut to close-up."
Usable board:
| Panel | Visual action | Sound plan |
|---|---|---|
| 1 | Daughter enters kitchen, father at sink | Hold dialogue until water stops |
| 2 | Medium two-shot across counter | Boom from camera left; fridge off before take |
| 3 | Daughter close-up on confession | Primary clean line, no dish action |
| 4 | Father turns back to sink | Record plate setdown separately |
| 5 | Empty kitchen after exit | 30 sec room tone with fridge still off |
The second version still leaves room for performance. It just prevents the sound problem from being discovered in the edit.
Handoff checklist
Before the board becomes a shot list, check each dialogue scene:
- Is the key line identified?
- Can the microphone get close enough?
- Does any prop action cover a word?
- Is a noisy appliance, street, crowd, or machine named?
- Is room tone scheduled?
- Are wild lines marked for risky blocking?
- Does the shot list preserve a close backup when the wide is fragile?
Recording sound for film is less mysterious when the storyboard makes audio constraints visible. The board does not replace the sound mixer. It gives the sound mixer a plan early enough to protect the scene.