Room Acoustics Software

REW is room acoustics analysis software for measuring and analysing room and loudspeaker responses. It includes tools for generating audio test signals; measuring SPL and impedance; measuring frequency and impulse responses; generating phase, group delay and spectral decay plots, waterfalls, spectrograms and energy-time curves; generating real time analyser (RTA) plots; calculating reverberation times; calculating Thiele-Small parameters; determining the frequencies and decay times of modal resonances; displaying equaliser responses and automatically adjusting the settings of parametric equalisers to counter the effects of room modes and adjust responses to match a target curve. The audio analysis features of REW help you optimise the acoustics of your listening room, studio or home theater and find the best locations for your speakers, subwoofers and listening position.

New in REW V5

Carried over from REW V4



You must register and login to the Home Theater Shack forums to download the most current REW files. Registration is fast, simple and free... and all downloads are free.

The current version is V5.00, released 30th January 2011. To view the revision history of REW click here.

Help Files

The REW room acoustics software contains comprehensive help information. You can also view the help files online, download the html files for offline viewing or download a PDF copy. For additional tips and assistance in using the software visit the Home Theater Shack forums.


If you have found REW useful and would like to make a donation to support further development you can do so by clicking the donation button below.


GetJava Download Button