Knowledge Base

Answers and Guides

What Are Room Modes and How Do You Find and Fix Them with REW?

Room modes are standing waves that form between parallel room surfaces; they cause boomy peaks and deep nulls at specific bass fr…

What Are Room Resonances and How Can You Measure and Fix Them with REW?

Room resonances (room modes) are standing waves that build up at specific low frequencies determined by your room's dimensions. T…

What Is BFD in REW and How Does It Help Control Room Resonances?

In Room EQ Wizard (REW), BFD refers to a parametric EQ filter approach — specifically the kind of narrow "notch" filter populariz…

What Is REW (Room EQ Wizard) and How Do You Use It for Room Measurement?

REW (Room EQ Wizard) is free software for measuring and analyzing room acoustics, loudspeakers, subwoofers, and audio devices. Yo…

What Is Room EQ Wizard (REW) and What Can It Do for Room Acoustics?

Room EQ Wizard (REW) is free room acoustics measurement and analysis software for Windows, macOS, and Linux. It measures rooms, s…

What Is Audio Software and What Can You Do With It?

Audio software is any application that lets you record, edit, mix, convert, or analyze sound on a computer. The category spans si…

How to Build a Home Theater: Essential Components and Setup Guide

You can build a capable home theater around four core pieces: a display (TV or projector), a sound system (soundbar or AV receive…

What Is a Waterfall in a Water Garden and How Does It Work in a Backyard Pond?

A waterfall in a water garden is a designed drop where pond water flows over rock, liner, or a preformed channel before returning…

What Is Freesound and How Do You Find and Download Free Sounds?

Freesound is a collaborative database of Creative Commons-licensed audio clips, hosted by the Universitat Pompeu Fabra in Barcelo…