Acoustic Panels for Your Home Studio: Do They Work and Where to Hang Them?

You record at home and your vocal sounds hollow, like you're standing in an empty room. No surprise you start looking at acoustic panels. They can really help, just often not in the way people expect. Here's what panels do and don't do, where to hang them when you record rap or singing, and when a thick comforter works just as well.

First things first: panels don't block sound

This is the biggest misconception. Acoustic foam is an absorber. It improves how your room sounds on the inside, but it does very little to stop sound going in or out. Panel maker Auralex says so itself: foam is ideal for improving the sound in the room, but does little to stop sound leaking into or out of it.

Real soundproofing works with mass (heavy, dense materials like drywall or plywood) and decoupling (an air gap between the existing wall and a new one). That's construction work, not hanging panels.

What does that mean for you?

• Your neighbors will still hear you after you put up panels.
• Traffic, a washing machine or a barking dog will still end up in your recording.
• What does change: the echo and hollow sound of your own voice in the room.

What panels actually do

When you rap or sing, your voice doesn't only go straight into the mic. It also bounces off bare walls, the ceiling and your desk, and arrives at the mic a split second later. Those reflections make your vocal sound hollow and distant. Between two bare, parallel walls you sometimes even hear a buzzing, rattling ring. Clap your hands hard in your room and you'll hear what your mic hears.

Panels soak up part of those reflections. The result is a drier, more upfront vocal. And dry is exactly what you want: you add reverb and delay yourself in the mix, but echo that's baked into the recording is very hard to get out.

Thin foam mostly works on the mids and highs

Thin foam panels mainly tame the mid and high frequencies. The thicker the material, the lower it works. Sound On Sound adds a trick: space your absorber an inch or two off the wall and it works a bit better in the low end too. Thin foam won't fix real bass problems in a room, that takes thick bass traps. For recording a voice close to the mic, though, thin foam often makes a clearly audible difference.

Where to hang panels when you record vocals

Most vocal mics are cardioid: they mainly pick up what happens right in front of them. The front of your mic points at you, and so at the wall behind you. That's where you start.

1. Behind you, at head height. Hang the panels on the wall or in the corner behind where you stand. Sound On Sound recommends placing absorbent material in an arc behind the vocalist, with the vocalist facing away from that corner, out into the room.
2. Face the room, not the wall. If you stand facing a bare wall, your voice bounces straight back. Turn your setup around so your mic points toward the open room and the treated wall is behind you.
3. Side walls close by? If there's a bare wall right next to you, hang a few panels there too, at the same height.
4. Don't put the mic in a corner or against a wall. A slightly quieter spot further into the room often gives you less echo straight away.
5. Test before and after. Record thirty seconds before you hang anything and again afterwards, with the same lyrics and distance. Listen on closed-back headphones (also read: which headphones for recording?). Hear less hollow ring? You're on the right track.

You don't have to cover the whole room. Start where it counts, behind you at head height, and listen whether that's enough before you add more.

No budget? A thick comforter works too

Panels aren't the only option. Sound On Sound actually prefers a thick comforter over thin foam tiles: it's cheap, you can hang it up and take it down without damaging your walls, and it usually absorbs over a wider frequency range. A closet full of clothes or a few thick pillows around your recording spot help as well.

Panels or a comforter: what fits you?

• You always record in the same spot and want it to look tidy: panels are handy. They stay up and you don't have to set anything up every session.
• You rent, share a room or record in different places: a comforter or thick blanket is often smarter. Hang it, record, take it down.
• Your neighbors complain: panels and comforters won't fix that. Look at your recording times or a different room instead.

Want to know more about cutting down echo in your takes? Read how to reduce room echo in rap vocals at home.

Next up: the mix

A dry, clean recording is the best start for your mix. Want to know which plugins to use after that, and in what order? Grab the free vocal chain cheat sheet for Logic Pro and FL Studio.

FAQ

Do acoustic panels block sound for the neighbors?

No. Acoustic foam absorbs reflections inside your room, but it stops very little sound from getting out. For that you need mass and decoupling, so actual construction.

Where do I hang panels if I only have a few?

Behind you, at head height, with your face and your mic pointing toward the open room. That's the wall your mic is looking straight at.

Can't I just remove the echo afterwards?

A little, with noise reduction or a gate, but that quickly hurts your voice. Preventing echo while recording is much easier than removing it later.

Does a comforter really work?

Yes, a thick comforter behind you is a well-known, cheap fix that often works over a wider frequency range than thin foam tiles. Test it with a before and after recording.

Sources: Auralex on foam and soundproofing and Sound On Sound on acoustic treatment for recording vocals.