Why Does My Room Echo?

Echo (more accurately, reverberation) happens when sound bounces off hard surfaces and takes a long time to fade away. The technical measurement for this is RT60 — the time it takes for sound to drop by 60 decibels after the source stops.

A typical living room has an RT60 of 0.3–0.5 seconds. A bathroom might be 1.0+ seconds. An untreated church can reach 3–4 seconds.

Quick Diagnosis

Clap your hands sharply in the room. If you hear a distinct prolonged ringing or flutter echo, your room has too much reverberation for clear audio.

You can also use our calculator to estimate your room's RT60 based on dimensions and materials. If it shows your RT60 exceeds the ideal range for your use case, it's time to add absorption.

The Most Effective Solutions (Ranked)

1. Thick Curtains or Drapes

Impact: High | Cost: Low–Medium | Difficulty: Easy

Heavy curtains are one of the most cost-effective acoustic treatments. They absorb mid and high frequencies effectively. Floor-to-ceiling curtains on one or two walls can dramatically reduce flutter echo.

Tips:

• Choose curtains with a lining or backing
• The thicker and heavier, the better
• Leave an air gap between the curtain and the wall (10–15 cm) for even better absorption

2. Carpet or Large Area Rugs

Impact: High | Cost: Medium | Difficulty: Easy

Hard floors (tile, hardwood, concrete) are highly reflective. Adding carpet or a thick area rug addresses floor reflections, which are often the primary echo source.

• Thick, dense carpet works better than thin berber
• A rug pad underneath adds extra absorption
• Aim to cover at least 50% of the floor area in the listening zone

3. Upholstered Furniture

Impact: Medium | Cost: Varies | Difficulty: Easy

You probably already have some. Sofas, armchairs, cushions, and ottomans all absorb sound. A room full of furniture absorbs significantly more than an empty one — this is why empty rooms sound so echoey.

4. Bookshelves

Impact: Medium | Cost: Low–Medium | Difficulty: Easy

A bookshelf filled with varying-sized books acts as both an absorber and a diffuser. The irregular surface breaks up reflections, and the books themselves absorb sound energy.

Place bookshelves on the wall opposite your speakers for the best effect.

5. Acoustic Panels

Impact: Very High | Cost: Medium–High | Difficulty: Moderate

Purpose-built acoustic panels are the most effective per square meter. They come in various sizes, thicknesses, and even decorative designs.

Where to place them:

• First reflection points: Stand at your listening position. Have someone slide a mirror along the walls. Wherever you can see the speaker in the mirror, that's a first reflection point
• Corners: Bass traps in corners help control low-frequency buildup
• Behind the listening position: Absorb late reflections that muddy the sound

What NOT to Do

• Don't cover everything: A completely dead room sounds unnatural and uncomfortable. You want some reflections for a natural sound
• Don't use egg cartons: Despite the myth, they're not effective acoustic treatment and they're a fire hazard
• Don't rely on foam alone: Thin foam panels only absorb high frequencies, making the room sound dull without solving bass echo problems

Room-by-Room Guide

Living Room

Target RT60: 0.3–0.6 seconds. Add a rug, curtains, and keep furniture in the room. Most living rooms only need minor treatment.

Home Office

Target RT60: 0.2–0.4 seconds. Important for video calls. A desk, bookshelf, curtains, and a small rug usually suffice.

Home Theater

Target RT60: 0.3–0.5 seconds. First reflection panels and bass traps make the biggest difference. Carpet is a must.

Recording Studio

Target RT60: 0.2–0.3 seconds. Requires professional treatment with broadband absorbers, bass traps, and potentially diffusion panels.

Measure, Treat, Measure Again

The key to effective acoustic treatment is measurement. Use our calculator before and after making changes to see the impact. Start with the easiest, most impactful solutions first, and add treatment gradually until your RT60 falls within the ideal range.