Updated October 2026 · Planning a home studio
Common acoustic treatment myths include that foam eggboxes fix a room, that treatment must cover every wall, that bass is always the first problem and that only expensive materials work. Treatment works best when it targets the reflections that matter for your work, is tested before and after, and uses materials that are fit for purpose.
Acoustic treatment attracts strong opinions and many myths. Home studio owners are told to cover every wall, to buy specific materials or to fix bass before anything else. Some of these beliefs are harmful: they lead to money spent on the wrong things and to rooms that stay echoey or boomy. Knowing the common myths helps you spend wisely and treat the room that you actually have.
This post sets out the most common myths, why they mislead and what is more useful to do instead.
Thin egg-crate foam is widely sold for studios, but it is mostly ineffective at absorbing the sound that matters for voice. It can look like treatment without doing much of the work. Thicker, denser materials, or soft furnishings, usually do more, and a test with a clap will show whether a change has made a difference.
Covering every wall is not necessary, and it can make a room sound dead and unnatural. The priority is the reflections that reach the microphone or the listening position first. A few well-placed pieces, plus some soft material across the room, often produce the best balance of clarity and natural sound.
Bass problems are real in small rooms, but for voice recording the first priority is usually the reflections and echo near the microphone. Bass treatment is more complex, and it is often a later step. Address the problems you can hear in your recordings before spending on bass control.
Simple, soft materials, such as blankets, rugs, curtains and cushions, can reduce echo effectively when they are placed well. Expensive products are not always more effective than sensible household materials, and the placement often matters more than the price. Test cheap options before buying expensive ones.
Treatment reduces problems, but it does not create a perfect sound. A treated room can still have its own character, and the speaker, the microphone and the recording technique all affect the result. Expect improvement, not perfection.
Treatment acts on the room, not on recordings already made. It helps future sessions, and it cannot remove echo from a recording that has already happened. Treat the room to improve future work, and use the recordings you have as the test.
More treatment is not always better. Heavy absorption everywhere can leave a room dull, lifeless and hard to judge, which makes mixing harder rather than easier. Some reflection and diffusion are part of what makes a room sound natural. The goal is a balanced space you can work in, not one that sounds like a booth at every point.
Adding treatment without a clear reason is a common way to spend money with little gain. Each piece should answer a problem you have identified, such as a flutter echo near the microphone or a long tail after a clap. If you cannot name the problem a piece solves, leave it off the list until you can.
The clap test is simple, but it is revealing. A sharp sound from a hand clap decays quickly in a treated space and rings for longer in a bare one. Record the clap before and after each change, and listen on headphones. You will hear the difference in the tail, and in the clarity of a voice recorded in the same place. It costs nothing, and it is a fair check on whether a change helped.
A clap test does not replace measurement, and it will not tell you about every frequency. For voice recording it is usually enough to decide the next step, which is why it is the best place to start for most home studios.
There is no universal rule for every room, and some advice depends on the room and the work. Treat these points as a way to avoid common mistakes, not as a complete guide. Test your own room, and keep the changes that improve your recordings.
Test before you buy. The room test guide explains the clap test, and the Vocal Checker shows noise, rumble and level problems in a recording you own. The Tunedzy Go page covers phone recordings. For the priorities, read the room treatment post in this series.
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They are mostly ineffective for voice. Thicker or softer materials usually do more.
No. Start with the reflections near the microphone and add soft material across the room.
Usually not for voice recording. Start with the reflections and echo you can hear.
Not necessarily. Blankets, rugs and curtains can work well when placed carefully.
