W0153R excellent tutorial. Your procedures also work with Vortexbox 2.4 A recent thread in the Klipsch forums showed how to use REW (Room EQ Wizard freeware) to measure your room and calculate Parametric Equalizer (PEQ) settings. https://community.klipsch.com/index.php?/topic/167089-using-rew-to-find-parametric-equalizer-peq-settings/
Some time ago Darren Yeats pointed out that Inguz " EQ presets can be defined separately from the EQ GUI plug-in. There is an xml file for each preset which you can configure by hand to have an indefinite number of EQ bands. On Linux the preset files live at /usr/share/InguzEQ/Settings/. " http://www.audiocircle.com/index.php?topic=51994.0 reply #18 So we should be able to use REW to create PEQ settings and then build a working preset. Here is an EQ conf for a preset I call Transistor Radio, a great preset for testing if EQ is working after installing Inguz - Transistor Radio.preset.conf <?xml version="1.0"?> <InguzEQSettings Revision="0.9.33"> <Client ID="00:52:1b:60:ea:c0"> <AmbisonicDecode Type="UHJ" RotateZ="0" RotateY="0" RotateX="0" /> <SignalGenerator Type="None" /> <Matrix></Matrix> <Width>0</Width> <Balance>0</Balance> <Skew>0</Skew> <Filter></Filter> <EQ Bands="5"> <Band Freq="60">-20</Band> <Band Freq="240">-20</Band> <Band Freq="1000">0</Band> <Band Freq="3840">-20</Band> <Band Freq="15360">-20</Band> </EQ> <Quietness>0</Quietness> <Flatness>10</Flatness> </Client> </InguzEQSettings> You can see it is a 5 band equalizer with -20db bass cut, flat at 1000Hz and -20db treble cut, sounds just like an old tinny pocket transister radio. It is simple to modify a .preset.conf, and after selecting the modified preset Inguz will show the response in the graph in the GUI. I have found that Inguz EQ is not just a software parametric equalizer, rather it appears to draw a line between points, so that if you want to equalize a bump in your speaker's response, then define the frequency at start of the bump with a zero, the bump peak frequency with a negative db number and the frequency where the response is flat with a zero - <Band Freq="850">0</Band> <Band Freq="900">-10</Band> <Band Freq="950">-12</Band> <Band Freq="1000">0</Band> These entries will build an EQ curve flat to 850Hz, -10db at 900Hz, -12db at 950Hz and flat from 1000Hz REW makes measurement simple by its ability to output a measurement sweep including the timing reference signal as a .wav file. This is done in the REW Generator function - select "Meas. Sweep", click the WAV icon and tick "add timing reference signal", set the WAV sample resolution and record the sweep. Convert the WAV to flac, use MP3Tag to add a title and add the track to your LMS library. So with our REW measurement Sweep complete with timing reference saved as a track in LMS, we can select the REW measurement function , make sure that the measurement sweep is set to what was recorded in the previous step (20 to 20,000 etc) and that the "Wait for timing reference" box is ticked and play our sweep through a squeezebox and measure the system response. Make sure that Don't Stop the Music or SpiceFly SugarCube is disabled. You will probably have to play the measurement sweep adjusting the volume several times until you have a good volume level. You can now use REW to calculate the PEQ settings and either edit an existing preset.conf or copy and rename an existing preset.conf and edit the new settings into the file. In the LMS GUI, go to Extras / Inguz EQ make sure that the settings file created/edited earlier is selected. Then play the sweep through the Squeezebox and measure with REW, the timing bleep will trigger REW to start measuring. This way the effect of the Inguz EQ settings can be measured and verified. This sequence can be repeated until you are happy with the equalisation. I use WinSCP to edit the .preset.conf file in /usr/share/InguzEQ/Settings/ All that is left is to figure out where to place the microphone in the room ...... A camel is a racehorse designed by a committee. Seen sprayed on the outside wall of the local library - Three things I hate in life : 1. Vandalism 2. Irony 3. Lists ------------------------------------------------------------------------ Wirrunna's Profile: http://forums.slimdevices.com/member.php?userid=3225 View this thread: http://forums.slimdevices.com/showthread.php?t=77084 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
