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, spectral decay plots, waterfalls, spectrograms 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.
chmod 777 REW_linux_5_19.sh
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. On macOS the logs are in the user library folder, which no longer appears in Finder by default. To display it either browse to ~/Library/Logs or open your Home folder in Finder (Shift Command + H), select View > Show View Options then select the checkbox to show the library folder.
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 or by running the REW uninstaller.
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
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