How to Improve Audio Quality of a Recording

Bad audio is the one thing listeners forgive least. Video creators know this. Podcasters learn it the hard way at episode three, when someone finally tells them their room sounds like a tiled bathroom.

Most people trying to figure out how to improve audio quality of a recording assume the problem is their equipment. It usually isn't. The problem is almost always the environment, the mic placement, or skipped post-production steps: none of which require spending anything to fix.

This guide covers every variable that determines audio quality: what to do before you record, and what to do after. Both matter. Neither alone is enough.

Step 01

Diagnose the actual problem first

Before touching any settings or buying any gear, identify which category your problem falls into. Most bad recordings have one of four causes.

Background noise. HVAC hum, refrigerator buzz, street traffic, keyboard clicks. Your ear filters these in real time. Your microphone records them faithfully.

Room echo. Hard surfaces reflect sound. Listeners hear your voice and a ghost of it arriving a fraction of a second later. It makes recordings sound hollow and unprofessional. No post-production tool will remove significant reverb after the fact.

Poor mic placement. Too far from the microphone means thin audio and more room sound in the mix. Speaking directly into the capsule creates harsh plosive sounds on p's and b's.

No post-production. Even a clean recording in a decent room needs EQ, compression, and loudness normalization before it's ready for distribution.

Figuring out which problem you have tells you where to spend your time. A room problem requires room treatment, not software. A levels problem requires compression, not a new microphone. Diagnosis first.

Step 02

Choose the right microphone

The gap between a laptop's built-in microphone and a $60 USB dynamic microphone is enormous. The gap between a $60 mic and a $400 mic is real but significantly smaller. Most people who think they have a microphone problem actually have a room problem or a placement problem. If you do need to choose a mic, these are the only decisions that matter for voice recording.

Dynamic vs. condenser

Dynamic microphones focus on what's directly in front of them and reject sound from the sides and rear. They're forgiving of background noise and don't require an acoustically treated room. For anyone recording in a home office, bedroom, or any space that isn't a dedicated studio: dynamic microphone.

Condenser microphones are more sensitive and capture a wider frequency range. That sensitivity also means they capture more of your room: every surface reflection, every ambient noise, every breath. In an untreated space, a condenser makes things worse. Condensers are for studios. Dynamic mics are for everywhere else.

USB vs. XLR

USB microphones plug directly into your computer. No additional hardware, no configuration, and they sound excellent for voice recording straight out of the box. XLR microphones connect through an audio interface for more signal control but add cost and complexity that most podcasters and content creators don't need.

Microphone recommendations

The Samson Q2U is the right starting point for almost everyone. The difference between that mic and a laptop microphone is the biggest audio quality improvement per dollar available. The difference between the Q2U and the SM7B is real but smaller, and it mostly disappears if the room isn't treated.

Step 03

Set up your recording environment

Your room determines more about how to improve recorded audio quality than your microphone does. Hard, parallel surfaces (bare walls, tile floors, uncovered windows, glass desks) create reflections that arrive at your microphone as echo. Your brain cancels these in person. Listeners hear them clearly on a recording.

The fix is soft, irregular surfaces that absorb and scatter sound rather than reflecting it cleanly.

What works

Carpet or rugs on hard floors make a significant difference. Curtains or heavy fabric over bare windows help. Bookshelves filled with books are effective because the irregular spine surfaces scatter sound waves rather than bouncing them cleanly back. Any upholstered furniture in the room absorbs reflections from behind you.

The single best improvised recording space is a walk-in closet full of hanging clothes. The fabric absorbs sound from every direction, the irregular shapes scatter reflections, and the small size reduces room resonance. NPR reporters recorded from closets throughout 2020. It sounds better than most purpose-built home setups and costs nothing to arrange.

If you're recording at a desk, the reflection off your monitor is often a significant contributor. Your voice travels forward, hits the screen, and bounces back toward the microphone. Tilting the monitor slightly or adjusting your position relative to it solves most of this.

What acoustic panels do (and don't do)

Acoustic panels reduce echo within the room. They do not block noise coming in from outside. Sounds that enter through the structure of the building (traffic, neighbors, building HVAC) will not be affected by panels on the walls. If the problem is a room that sounds hollow, panels work. If the problem is noise entering from outside, the fix is eliminating the source before recording, not treating the surfaces.

Step 04

Get mic placement and technique right

The right room and the right microphone mean nothing with bad placement. Placement errors cause more bad recordings than any other single factor, and they cost nothing to fix.

Distance

For dynamic microphones: 2 to 4 inches from the capsule. This feels closer than natural speech distance, but it's where dynamic mics perform best: close placement increases the warmth of your voice via the proximity effect and reduces how much room sound the mic picks up relative to your voice.

For condenser microphones: 6 to 12 inches. Condensers are more sensitive, so you don't need to be as close. Being too close to a condenser creates its own problems: exaggerated proximity effect and heightened sensitivity to mouth sounds.

Angle

Don't speak directly into the face of the microphone. Position it slightly off-axis, angled at roughly 45 degrees toward the corner of your mouth rather than straight at your lips. This reduces plosive sounds dramatically. The thump on p's, b's, and t's that sounds like someone tapping a table is almost entirely a placement problem. A pop filter in front of the capsule provides additional protection. A foam windscreen achieves the same result and takes up less space.

Test before every session

Record 30 seconds of test audio and listen back before recording anything that matters. This step catches the wrong input selected, a mic that wasn't powered on, a room noise you'd stopped noticing, and levels that are too hot or too quiet. It takes two minutes and prevents the most common and most frustrating recording problems.

Step 05

Edit your content before you touch the audio

The order of post-production matters. Edit content first, then process audio. Polish a section you end up cutting and you've wasted time.

On the first pass: cut long silences, remove tangents, tighten transitions between sections. Don't touch EQ or compression yet. Get the structure right, then fix the sound.

Step 06

How to improve audio quality of a recording in post-production

Good recording practice covers most of the problem. Post-production handles what's left: low-end rumble, inconsistent levels, the slight dullness that even clean recordings have, and getting your output to the loudness standard that podcast platforms expect.

Three adjustments make the biggest difference to how to make audio sound better at this stage.

High-pass filter at 80 to 100 Hz

Everything below 80 Hz in a voice recording is noise: HVAC hum, desk vibrations, electrical interference. A high-pass filter cuts this range entirely. It costs nothing in vocal presence and clears up the bottom of the spectrum immediately. Apply it to every vocal track, every time.

Compression at a 3:1 ratio

Compression evens out the difference between your loudest and quietest moments. A 3:1 ratio with moderate attack is the standard starting point for spoken word. The goal is a vocal that stays at a consistent level throughout the recording, so listeners don't need to adjust their volume. Intelligibility is the target, not dynamic range.

Loudness normalization to -16 LUFS

Most podcast platforms, including Apple Podcasts and Spotify, expect audio around -16 LUFS. Export below that level and your show sounds noticeably quieter than everything around it in the feed. Normalization brings the overall output up to the right target without introducing distortion.

Apply all three in WesterAudio's Mix Master

Mix Master is WesterAudio's browser-based mixing tool built for podcasters and voice creators. Import your recorded tracks, apply parametric EQ (including the high-pass filter), set compression per track, and export your final file at the correct loudness: all in one browser tab, with no software to install.

If you recorded using WesterAudio Solo or Collab, your tracks are already in the mixer. No import step required.

Step 07

Specific fixes for the most common problems

If you're working with a recording that's already done, or trying to increase audio quality on a specific issue, here is what works and what doesn't.

Recording sounds hollow or echoey. This is a room acoustics problem. Add soft surfaces, move to a smaller space, or record in a closet next time. Post-processing cannot remove significant reverb because the reflections are embedded in the recording at the same frequency as your voice.

Background noise is too loud. Noise reduction in post works well on consistent, steady-state noise like HVAC hum or refrigerator buzz. It works poorly on intermittent noise (traffic, dogs, keyboard clicks) because noise reduction algorithms need a stable noise profile to subtract. Eliminate intermittent noise sources before recording whenever possible.

Voice sounds thin or tinny. Usually a placement issue: the microphone is too far away and capturing too much room relative to your voice. Move closer. If you're already at the right distance, a gentle boost around 200 Hz in EQ adds warmth without muddying the midrange.

Plosives on p's and b's. Move the microphone slightly off-axis and add a pop filter or windscreen before recording. If plosives are already in the recording, a high-pass filter at 80 to 100 Hz reduces the low-frequency impact, but severe plosives in a recording are difficult to remove cleanly in post.

Levels are inconsistent throughout. Apply compression in Mix Master. A 3:1 ratio with moderate attack smooths the distance between loud and quiet passages without making the voice sound over-processed.

The recording is too quiet overall. Normalize to -16 LUFS. If the recording is so quiet that normalization introduces audible noise floor artifacts, re-record closer to the microphone at a higher input gain.

Frequently asked questions