REW (Room EQ Wizard) is a Java application for measuring room responses and countering room modal resonances. It includes tools for generating test signals; measuring SPL; measuring frequency and impulse responses; generating phase, group delay and spectral decay plots, waterfalls and energy-time curves; generating real time analyser (RTA) plots; calculating reverberation times; 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.
REW uses a logarithmically swept sine signal for its measurements. This is much faster than manual measurements, more accurate, less likely to suffer from clipping at resonances, less sensitive to system non-linearity than MLS and allows the impulse response of the room to be determined, which in turn is the basis for many additional features. When using the Real Time Analyser displays REW can generate Pink Periodic Noise sequences for much better visibility of low frequency behaviour than obtained using random Pink Noise without the need for lengthy averaging.
For hints, tips and help visit www.hometheatershack.com/forums/rew-forum The REW home page is at www.roomeqwizard.com
REW saves diagnostic logs in the user's home directory, the location is displayed in the Help -> About REW window. The logs contain information from the last 10 startups, including any error messages or warnings that may have been generated.
The startup preferences for REW on Windows systems are stored in this registry key:
HKEY_CURRENT_USER\Software\JavaSoft\Prefs\room eq wizardThe preferences (under any OS) can be deleted by using the Delete Preferences and Shut Down option in the Preferences menu.
THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
Soundcard debug data is generated by a modified version of Florian Bomers' ListMixers class, available from the Java Sound Resources web pages at http://www.jsresources.org/
REW uses the JTransforms pure Java FFT library available at http://sites.google.com/site/piotrwendykier/software/jtransforms
Thanks to Gerrit Grunwald for ideas and elements from his Steel Series components, available at http://harmoniccode.blogspot.com
ASIO interfaces are supported using Martin Roth's JAsioHost, available at https://github.com/mhroth/jasiohost
REW's installers are built with the Install4J multi-platform installer builder, available at http://www.ej-technologies.com/products/install4j/overview.html
Copyright © 2004-2015 John Mulcahy All Rights Reserved
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