Record Great Audio as a Solo Filmmaker: 6 Proven Tips

In short: To record great audio as a solo filmmaker, check your location for noise, use an external mic rather than the built-in one, place it close to your subject, keep levels around -10 to -12 dB, record ambient sound and use a windscreen outdoors.

Bad audio will make your documentary unwatchable faster than a shaky shot ever will.

As a solo filmmaker you're juggling locations, equipment, release forms and funding, so it's easy for sound to slip under the radar until it bites you in post-production.

Why Sound Makes or Breaks Your Film

Poor sound is often what makes a beginner's film stand out like a sore thumb. People will forgive bad visuals for a few minutes, but with bad sound they'll stop watching within seconds.

What people hear is 50 percent of their viewing experience. Sound isn't something to worry about later: it's half the film.

6 Essential Audio Recording Tips for Filmmakers

1. Plan Ahead For Clean Audio in Your Film

Visit your location in advance, work out how to minimise noise and choose the best time of day to film. Near a busy road, for example, film either side of peak-hour traffic.

Listen for background noise you'd normally tune out: air conditioning, buzzing lights, humming fridges. Your ears filter these sounds, but your microphone won't. Switch off what you can and close windows and doors before you roll.

2. Choose The Right Microphone When Filming

Don't rely on your camera's built-in microphone. It's low quality, picks up handling noise and room echo, and sounds tinny and amateur. Use a shotgun mic or a lapel mic instead.

The best option is a boom operator keeping a shotgun mic close to the subject, which gives a much fuller, richer sound. When that's not possible, put a shotgun mic like the Rode VideoMic Pro on top of your camera, which is great for run-and-gun filming. Or clip a wireless lapel mic to your subject so they can move around and you still capture great sound.

If you're shooting on a DSLR or mirrorless camera, consider recording into a separate field recorder like the Zoom H5 or Tascam DR-60D. You get better preamps and 24-bit recording, so cleaner audio with more room to adjust levels in post. You'll need to sync sound and picture in the edit, but a handclap at the start of each take makes that easy.

3. Prioritise Microphone Placement for Clean and Crisp Audio

The closer the mic is to your subject, the cleaner the sound. Microphones don't filter background noise the way our brains do, so the further away the mic, the more echo, traffic and ambient noise creeps in. Getting close improves your signal-to-noise ratio: the balance between the voice you want and everything else.

If you're using more than one mic, follow the 3-to-1 rule: the distance between mics should be at least three times the distance from each mic to its sound source. This prevents phase issues.

The real art is getting the mic close while keeping it out of shot, or making sure it doesn't feel out of place if it is in shot.

4. Monitor Audio Levels When Filming

Keep your sound below 0 dB, ideally around -10 to -12 dB. If levels hit 0 dB or go into the red, the audio clips, and that distortion can't be fixed in post.

Where the sound level keeps changing, record a little lower and keep adjusting as you go.

Always monitor with closed-back headphones, not earbuds. Headphones like the Sony MDR-7506 or Sennheiser HD 280 Pro let you hear rustling clothes, distant sirens or a buzzing light that you'd miss just watching the meters.

5. Capture Ambient Sound at Each Filming Location

Spend a couple of minutes recording a wildtrack: the local ambience of the location, whether that's birds in the park or people chattering in a cafe. You can use it in the edit to smooth cuts between shots in a scene.

Without it, gaps between edits sound like dead silence, which feels jarring. Even 30 to 60 seconds of room tone gives you enough for smooth sound bridges when you're editing your documentary.

6. Use a Windsock or Windscreen For Clean Audio

This matters most outdoors, especially somewhere exposed like mountains or the coast. I've found windsocks help only a little, while windscreens make a big difference, especially combined with a windsock. I use the Rode blimp windshield for my Rode NTG3.

Even a light breeze on an unprotected mic can sound like a freight train. A furry windscreen (a "dead cat") is one of the cheapest accessories and makes the biggest difference to outdoor audio.

The Key to Clean Sound in Post-Production

It's always easier to fix a problem before you film than in the edit. Stopping to fix something can feel stressful under time pressure, but you'll thank yourself later.

I cover audio mixing and more in my guide to editing an engaging documentary.

Best Mics for Documentary Interviews

Lavalier (lav) mics like the Rode Lavalier GO or Sennheiser ME 2-II are small, discreet and clip to your subject's clothing. They're my go-to for sit-down interviews because they give consistent levels even if your subject moves their head. The downside is clothing rustle if they're not mounted carefully.

Shotgun mics like the Rode NTG3 or Sennheiser MKE 600 are directional, isolating the speaker's voice even in noisier places. I use a shotgun on a boom for interviews whenever I have someone to operate it, because the sound is hard to beat.

Small diaphragm condenser mics work well for ambient sound or group discussions where you want a wider pickup.

A combination gives you the most flexibility. I'll typically run a lav for safety and a boom-mounted shotgun as my main mic, so I have options in the edit. For more on setting up, see my guide to shooting cinematic documentary interviews.

How to Record Multi-Person Interviews for Documentaries

Put a lav on each participant for individual clarity, and run a shotgun or boom mic to capture the overall group sound and ambience.

Seat people facing each other to encourage natural conversation, with enough separation between each lav. Do thorough sound checks to balance levels and placement before you roll.

Having each voice on a separate track lets you mix and balance the dialogue properly in post, rather than trying to fix one combined recording.

Hiding Lavalier Mics for Documentaries: Tips and Tricks

Hiding lavs takes practice. Choose small mics and use mounts or clips to place them under collars, in pockets or behind thin fabric.

To reduce cable noise, loop the cable and tape it to the inside of clothing so it doesn't rub against the fabric. Moleskin (a soft, adhesive-backed cotton fabric) also reduces friction noise and helps hold the mic in place.

Good spots include buttonholes, under lapels, or taped inside a shirt between buttons. Always test audio before filming to check for clothing noise.

Get the mic close, keep the levels safe and wear headphones, and you'll have audio your audience never has to think about.

Frequently Asked Questions

What is the 3-to-1 rule in audio?

The distance between two microphones should be at least three times the distance from each mic to its sound source. If a lav is 15cm from a speaker's mouth, the next mic should be at least 45cm away. This prevents phase cancellation, which makes audio sound hollow or thin.

How do I get good audio when filming by myself?

Use an external mic, get it as close to your subject as possible, monitor with closed-back headphones and record ambient sound at every location. A wireless lav is often the easiest option for solo documentary filmmaking because it frees you up to operate the camera.

What audio levels should I aim for when recording?

Aim for dialogue peaking around -10 to -12 dB. Never let your meters hit 0 dB or go red, because clipping distortion is permanent. If your recorder supports it, record a safety track 10 to 12 dB lower as a backup for unexpected loud moments.

Do I need an external audio recorder, or can I record straight to my camera?

For DSLRs and mirrorless cameras, an external recorder like the Zoom H5 or Tascam DR-60D gives much better results. Camera preamps tend to be noisy and most only record 16-bit audio, while a recorder gives you cleaner preamps and 24-bit recording. Professional camcorders with XLR inputs and decent preamps can record perfectly good audio directly.