AudioCheck provides online sound tests to assess audio equipment, with downloadable high-resolution files for patrons.
REW
REW measures and analyzes room acoustics, speakers, subwoofers, and audio devices.
About REW
REW measures and analyzes rooms, speakers, subwoofers and audio devices. It helps users test speaker, subwoofer and listening positions, check the performance of the audio reproduction chain, and configure EQ to address room problems.
Measurement typically uses a calibrated USB microphone with a computer output, or an analog microphone with an audio interface. EQ correction applies at the listening position and is subject to limitations noted in the documentation.
Key features
- Measure rooms, speakers, subwoofers and audio devices
- Identify speaker, subwoofer and listening positions
- Analyze audio reproduction chain performance
- Configure EQ to address room problems
- Calculate Speech Transmission Index from impulse response
- Simultaneous multi-input measurement with RMS averaging (Pro upgrade)
Best for: People tuning a listening room, studio, or home theater with measured speaker placement and EQ.
Good for
- Available with installers for Windows, macOS (Intel and ARM), and Linux
- Works with calibrated USB microphones and analog microphones using an audio interface
- Help files available online, for offline viewing, and in French and Chinese V5.20 translations
Watch out for
- EQ help at the listening position is subject to some limitations
- On macOS, users may need to grant microphone and folder access in Privacy settings
- Linux installer requires a Java 8 runtime
REW at a glance
- Website
- roomeqwizard.com
- Category
- Software & Utilities › Hardware & Diagnostics
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, macOS, Web, Windows
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Open source
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REW FAQ
What equipment is needed for measurement?
The simplest configuration described is a calibrated USB microphone, such as the UMIK-1, with a computer headphone or HDMI output. An analog microphone, such as the EMM-6, needs an interface with a mic preamp and phantom power, such as the Focusrite Scarlett 2i2.
Which operating systems have installers?
There are Windows 64-bit and 32-bit installers, a macOS universal binary for 10.15-14 on Intel and ARM Macs, and a Linux AMD64 installer that requires a Java 8 runtime.
What does the Pro upgrade add?
It offers simultaneous measurement of multiple inputs with rms averaging, adjustable weighting for each input, level alignment, up to 16 input traces on the RTA, and Speech Transmission Index calculation from the impulse response per IEC 60268-16:2020.
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