Audio is the part of YouTube production that creators most often underestimate. A slightly soft image is fine; muffled, echoey or uneven sound makes people click away. Good audio editing isn't magic, though. It's a handful of steps applied consistently. This guide walks through them, from recording to final mix.
Start with good recording
Editing can improve audio, but it can't fully rescue it. The basics:
- Use a dedicated mic: a lavalier or a decent USB or XLR mic close to the speaker beats a camera mic.
- Treat the room: soft furnishings, rugs and curtains reduce echo.
- Reduce noise: turn off fans and fridges, close windows.
- Set levels properly: loud enough to be clear, never clipping.
- Record room tone: a few seconds of silence helps noise reduction and filling gaps.
The editing chain
1. Clean up
Cut out coughs, clicks, mouth noises and long breaths. Remove ums and false starts as part of the edit.
2. Noise reduction
Reduce steady background noise like hum or hiss. Apply gently; too much makes voices sound watery or robotic.
3. EQ
Shape the tone of the voice. Common moves include cutting low rumble, reducing muddiness and adding a little presence for clarity. Make small adjustments and compare before and after.
4. Compression
Evens out the difference between loud and quiet parts so viewers don't keep reaching for the volume. Moderate settings usually sound most natural.
5. De-essing
Tames harsh "s" sounds that can be painful on headphones.
6. Levels and loudness
Balance speakers against each other and against music. Aim for a consistent overall loudness suitable for online platforms; YouTube normalises playback loudness, so very loud mixes gain nothing and can sound squashed.
Mixing music
- Keep music well below speech; viewers should never strain to hear words.
- Duck music automatically or manually when someone talks.
- Choose tracks without vocals for talking sections.
- Fade in and out smoothly at section changes.
- Use properly licensed music. See music licensing for video.
Sound design
Subtle sound effects make edits feel polished: whooshes on transitions, pops on text, ambient sound in b-roll. Keep them consistent with your channel's style and quieter than you think; overdone effects feel cheap. See YouTube editing styles.
Multi-speaker content
Interviews and podcasts add challenges: different mics and voices, crosstalk and bleed. Record each person on their own mic where possible, balance them so they sound like they're in the same room, and cut or reduce bleed when only one person is talking. See podcast clipping.
Fixing common problems
- Echo: dereverb tools help a bit; better room treatment helps more.
- Clipping: repair tools can reduce distortion, but severe clipping usually needs a re-record.
- Wind: high-pass filters and dedicated tools reduce it; windshields prevent it.
- Uneven levels between scenes: match loudness clip by clip before the final mix.
AI audio tools
AI tools can dramatically clean up voice recordings. They're useful, especially for rescue jobs, but can sometimes create an unnatural sound. Compare against the original and blend if needed.
Check on multiple devices
Listen on headphones, laptop speakers and a phone. Many viewers watch on phones, where low-end detail disappears and harshness stands out. A mix that sounds good everywhere is the goal.
A quick audio checklist
- Dialogue clear and consistent throughout.
- No distracting noise, clicks or harsh esses.
- Music sits under speech.
- Sound effects subtle and consistent.
- Overall loudness sensible for YouTube.
- Checked on phone and headphones.
See the full YouTube editing checklist.
The short version
Record well, then clean, reduce noise, EQ, compress and balance levels. Keep music under speech, use sound effects sparingly and check on several devices before publishing.
Building audio presets
Once you've found settings that suit your voice and recording setup, save them as presets or a template audio chain. Applying the same treatment to every video saves time and keeps your sound consistent across uploads. Revisit them if you change mics, rooms or cameras, since a new setup usually needs small adjustments.
Briefing an editor on audio
If you outsource editing, tell your editor how you like your sound: natural or heavily processed, music prominent or minimal, sound effects playful or absent. Share an example video whose audio you like. Send your original separate audio files rather than only the camera's audio, plus room tone if you recorded it. Clear inputs make a big difference to the final mix. See sending footage to an editor.
Upgrading in the right order
If you want better sound, spend in this order: a decent mic placed close, then room treatment, then editing skills or help. A great mic in an echoey room still sounds echoey.
Small, steady upgrades plus consistent editing usually beat one expensive purchase. Listen back to an older video now and then; hearing your progress makes it easier to spot what to improve next.
Related guides
Part of our long-form YouTube editing series. See also vlog editing. See our work or get in touch.
