There was very little on the web concerning defined presets on a 31 band EQ… so I started digging through pictures and software and writing down Db setting for all the frequency bands I could find to come up with an average curve, then used my ear running many rock and metal mp3’s through it to tweak it, including live and direct line-in recordings my band and I have done. Presets are a “catch 22” , but i feel this one will give the inexperienced user a good starting place. I plan on uploading more for different styles of music an optimizing them more in depth. m 
m/
Thanks Bruski. The curve loads fine once the file extension has been changed.
Could you say something about that curve. Is it for a specific purpose? Are those the settings that work best with your speakers?
Sorry, should’ve had a lil more specificity…
This is my my own Personal Favorite Settings for my Ibanez (Active PU) SR300 going straight into Audacity (via USB1/4" Jack). I believe it’s the best “Clean” Bass Sound you’re going to get to begin with.
Of course you can then always “Copy” Tracks & add a little more flavor w/some other “effects”…
I love this APP!!!
I’m sending the eq presets curves I created and use for all my records I add in to the computer. I use these sometimes also for adding the realism back in to the digital cd ripped files.
but these are what I’ve found needed by the different qualitys of the used records I buy to add in my jukebox. some of the records are so scratched they skip but we all know how to fix that.
it is the ones that are Omni scratched from extreme playing that we have need of eq presets since those have the groove walls worn down so much they barely have any sound. I use my normal one for that then if needed I use any one or multiply ones of my others. you all know to do the normalize after each eq adjustment but I’ve also used leveler and compression when needed. and some of those old hi fi Hammond organ albums are in need of compression some two or three times. but these presets do bring the freq’s up out of the songs lost volume if they are still there.
Keiths Eq presets.zip (21.5 KB)
I forgot to mention that the power hum removal one I made was for use with bass male voices that have a hard time getting rid of the power hum without destroying the vocals… And the high treble cut looks more likea mid range cut but that was also for specific requirements such as songs where the bass is almost gone and theres a lot of treble and mid range. This will help in getting it back to work able levels then you can use the others you have to fix it more properly.
This is a “high-pass” rumble filter designed for vocal recordings.
It can greatly assist in reducing rumbles, pops, and other low frequency noise with little if any affect on the sound of the voice.
If your microphone has a low frequency cut setting and you use a Pop filter then this filter will usually not be necessary.
LF_rolloff_for_speech.xml (299 Bytes)
Here’s a EQ curve I made for removing Pre-Emphasis that was used on some older CDs. The values for this curve were sourced from here: http://audioxpress.com/files/galo3025.pdf
This allows for easy de-emphasis of CDs in relatively high (“ideal”) resolution.
CD De-Emph.XML (1.53 KB)
There is some more about CD pre-emphasis here: Pre-emphasis - Hydrogenaudio Knowledgebase.
However since some CD rippers these days detect pre-emphasised CD’s and apply a de-emphasis filter, you would need to know what ripper processed the files before deciding to use the filter.
Gale
Sorry, i bad english.
I experiment with longer EQ curves:
http://pvtv.hu/tarolo/out_files/EQgen.tar.xz
ultima.XML (21.4 KB)
Use audacity as equalizer.
At home and in the car.
Place a curve in the case of utilities’ other forum friends who may like me
use audacity to equalize the tracks.
Great program.
Thanks to the team of Audacity.
Thank you, I moved your post to this topic where we store user’s suggested EQ curves.
How would you describe the purpose and special qualities of your curve?
Gale
Thanks but there is not much point posting a curve with a generic name and no other indication what it should be used for.
Is it supposed to be a curve for a specific genre of music?
Gale
EQOctaves.xml :
<equalizationeffect>
<curve name="Octave 0">
<point f="20.9000" d="-3.000"/>
<point f="21.0000" d="3.000"/>
<point f="32.0000" d="3.000"/>
<point f="32.1000" d="-3.000"/>
</curve>
<curve name="Octave 1">
<point f="31.9000" d="-3.000"/>
<point f="32.0000" d="3.000"/>
<point f="64.0000" d="3.000"/>
<point f="64.1000" d="-3.000"/>
</curve>
<curve name="Octave 2">
<point f="63.9000" d="-3.000"/>
<point f="64.0000" d="3.000"/>
<point f="128.0000" d="3.000"/>
<point f="128.1000" d="-3.000"/>
</curve>
<curve name="Octave 3">
<point f="127.9000" d="-3.000"/>
<point f="128.0000" d="3.000"/>
<point f="256.0000" d="3.000"/>
<point f="256.1000" d="-3.000"/>
</curve>
<curve name="Octave 4">
<point f="255.9000" d="-3.000"/>
<point f="256.0000" d="3.000"/>
<point f="512.0000" d="3.000"/>
<point f="512.1000" d="-3.000"/>
</curve>
<curve name="Octave 5">
<point f="511.9000" d="-3.000"/>
<point f="512.0000" d="3.000"/>
<point f="1024.0000" d="3.000"/>
<point f="1024.1000" d="-3.000"/>
</curve>
<curve name="Octave 6">
<point f="1023.9000" d="-3.000"/>
<point f="1024.0000" d="3.000"/>
<point f="2048.0000" d="3.000"/>
<point f="2048.1000" d="-3.000"/>
</curve>
<curve name="Octave 7">
<point f="2047.9000" d="-3.000"/>
<point f="2048.0000" d="3.000"/>
<point f="4096.0000" d="3.000"/>
<point f="4096.1000" d="-3.000"/>
</curve>
<curve name="Octave 8">
<point f="4095.9000" d="-3.000"/>
<point f="4096.0000" d="3.000"/>
<point f="8192.0000" d="3.000"/>
<point f="8192.1000" d="-3.000"/>
</curve>
<curve name="Octave 9">
<point f="8191.9000" d="-3.000"/>
<point f="8192.0000" d="3.000"/>
<point f="16384.0000" d="3.000"/>
<point f="16384.1000" d="-3.000"/>
</curve>
<curve name="Octave 0-1">
<point f="20.9000" d="-3.000"/>
<point f="21.0000" d="3.000"/>
<point f="64.0000" d="3.000"/>
<point f="64.1000" d="-3.000"/>
</curve>
<curve name="Octave 1-2">
<point f="63.9000" d="-3.000"/>
<point f="64.0000" d="3.000"/>
<point f="256.0000" d="3.000"/>
<point f="256.1000" d="-3.000"/>
</curve>
<curve name="Octave 2-3">
<point f="255.9000" d="-3.000"/>
<point f="256.0000" d="3.000"/>
<point f="1024.0000" d="3.000"/>
<point f="1024.1000" d="-3.000"/>
</curve>
<curve name="Octave 3-4">
<point f="1023.9000" d="-3.000"/>
<point f="1024.0000" d="3.000"/>
<point f="4096.0000" d="3.000"/>
<point f="4096.1000" d="-3.000"/>
</curve>
<curve name="Octave 4-5">
<point f="4095.9000" d="-3.000"/>
<point f="4096.0000" d="3.000"/>
<point f="16384.0000" d="3.000"/>
<point f="16384.1000" d="-3.000"/>
</curve>
</equalizationeffect>
EQKvints.xml :
<equalizationeffect>
<curve name="Kvint 0">
<point f="31.9000" d="-3.000"/>
<point f="32.0000" d="3.000"/>
<point f="48.0000" d="3.000"/>
<point f="48.1000" d="-3.000"/>
</curve>
<curve name="Kvint 1">
<point f="47.9000" d="-3.000"/>
<point f="48.0000" d="3.000"/>
<point f="72.0000" d="3.000"/>
<point f="72.1000" d="-3.000"/>
</curve>
<curve name="Kvint 2">
<point f="71.9000" d="-3.000"/>
<point f="72.0000" d="3.000"/>
<point f="108.0000" d="3.000"/>
<point f="108.1000" d="-3.000"/>
</curve>
<curve name="Kvint 3">
<point f="107.9000" d="-3.000"/>
<point f="108.0000" d="3.000"/>
<point f="162.0000" d="3.000"/>
<point f="162.1000" d="-3.000"/>
</curve>
<curve name="Kvint 4">
<point f="161.9000" d="-3.000"/>
<point f="162.0000" d="3.000"/>
<point f="243.0000" d="3.000"/>
<point f="243.1000" d="-3.000"/>
</curve>
<curve name="Kvint 5">
<point f="242.9000" d="-3.000"/>
<point f="243.0000" d="3.000"/>
<point f="364.5000" d="3.000"/>
<point f="364.6000" d="-3.000"/>
</curve>
<curve name="Kvint 6">
<point f="364.4000" d="-3.000"/>
<point f="364.5000" d="3.000"/>
<point f="546.7500" d="3.000"/>
<point f="546.8500" d="-3.000"/>
</curve>
<curve name="Kvint 7">
<point f="546.6500" d="-3.000"/>
<point f="546.7500" d="3.000"/>
<point f="820.1250" d="3.000"/>
<point f="820.2250" d="-3.000"/>
</curve>
<curve name="Kvint 8">
<point f="820.0250" d="-3.000"/>
<point f="820.1250" d="3.000"/>
<point f="1230.1875" d="3.000"/>
<point f="1230.2875" d="-3.000"/>
</curve>
<curve name="Kvint 9">
<point f="1230.0875" d="-3.000"/>
<point f="1230.1875" d="3.000"/>
<point f="1845.2813" d="3.000"/>
<point f="1845.3812" d="-3.000"/>
</curve>
<curve name="Kvint 10">
<point f="1845.1813" d="-3.000"/>
<point f="1845.2813" d="3.000"/>
<point f="2767.9219" d="3.000"/>
<point f="2768.0219" d="-3.000"/>
</curve>
<curve name="Kvint 11">
<point f="2767.8219" d="-3.000"/>
<point f="2767.9219" d="3.000"/>
<point f="4151.8828" d="3.000"/>
<point f="4151.9828" d="-3.000"/>
</curve>
<curve name="Kvint 12">
<point f="4151.7828" d="-3.000"/>
<point f="4151.8828" d="3.000"/>
<point f="6227.8242" d="3.000"/>
<point f="6227.9242" d="-3.000"/>
</curve>
<curve name="Kvint 13">
<point f="6227.7242" d="-3.000"/>
<point f="6227.8242" d="3.000"/>
<point f="9341.7363" d="3.000"/>
<point f="9341.8363" d="-3.000"/>
</curve>
<curve name="Kvint 14">
<point f="9341.6363" d="-3.000"/>
<point f="9341.7363" d="3.000"/>
<point f="14012.6045" d="3.000"/>
<point f="14012.7045" d="-3.000"/>
</curve>
<curve name="Kvint_2 0">
<point f="31.9000" d="-3.000"/>
<point f="32.0000" d="3.000"/>
<point f="136.5333" d="3.000"/>
<point f="136.6333" d="-3.000"/>
</curve>
<curve name="Kvint_2 1">
<point f="136.4333" d="-3.000"/>
<point f="136.5333" d="3.000"/>
<point f="582.5422" d="3.000"/>
<point f="582.6422" d="-3.000"/>
</curve>
<curve name="Kvint_2 2">
<point f="582.4422" d="-3.000"/>
<point f="582.5422" d="3.000"/>
<point f="2485.5135" d="3.000"/>
<point f="2485.6135" d="-3.000"/>
</curve>
<curve name="Kvint_2 3">
<point f="2485.4135" d="-3.000"/>
<point f="2485.5135" d="3.000"/>
<point f="10604.8575" d="3.000"/>
<point f="10604.9575" d="-3.000"/>
</curve>
<equalizationeffect>
EQ curve generator in javascript, calculate sound resonances in cavity.
Thanks, that’s a nice project.
Could you extend it to include 3 dimensions along with a material quotient? 
… to include 3 dimensions …
2 channel → one (or more) effect per channel, with different values.
I thinking this, at least two curves to be generated.
Normal audio casettes response:
<equalizationeffect>
<curve name="BASF FE L90">
<point f="50" d="-0.9"/>
<point f="315" d="2.8"/>
<point f="1000" d="2.8"/>
</curve>
<curve name="BASF FE L100">
<point f="50" d="-0.5"/>
<point f="315" d="3.3"/>
<point f="1000" d="3.5"/>
</curve>
<curve name="TDK AR 90">
<point f="50" d="3.2"/>
<point f="315" d="6.4"/>
<point f="1000" d="5.1"/>
</curve>
<curve name="TDK AR 100">
<point f="50" d="2.8"/>
<point f="315" d="5.3"/>
<point f="1000" d="4.1"/>
</curve>
<curve name="BASF CE 90">
<point f="50" d="-1.7"/>
<point f="315" d="2.2"/>
<point f="1000" d="0.5"/>
</curve>
<curve name="BASF CE 100">
<point f="50" d="-1.9"/>
<point f="315" d="2.2"/>
<point f="1000" d="0.4"/>
</curve>
<curve name="Denon HD6 90">
<point f="50" d="-2.8"/>
<point f="315" d="0.7"/>
<point f="1000" d="-0.2"/>
</curve>
<curve name="Denon HD6 100">
<point f="50" d="-1.9"/>
<point f="315" d="2.0"/>
<point f="1000" d="1.0"/>
</curve>
<curve name="Denon HD8 90">
<point f="50" d="-0.6"/>
<point f="315" d="3.1"/>
<point f="1000" d="2.1"/>
</curve>
<curve name="Denon HD8 100">
<point f="50" d="-1.1"/>
<point f="315" d="2.1"/>
<point f="1000" d="0.9"/>
</curve>
<curve name="Maxell XLII 90">
<point f="50" d="-3.4"/>
<point f="315" d="1.2"/>
<point f="1000" d="0.2"/>
</curve>
<curve name="Maxell XLII 100">
<point f="50" d="-2.9"/>
<point f="315" d="1.0"/>
<point f="1000" d="0.4"/>
</curve>
<curve name="Maxell XLII-S 90">
<point f="50" d="-3.3"/>
<point f="315" d="0.1"/>
<point f="1000" d="-0.4"/>
</curve>
<curve name="Maxell XLII-S 100">
<point f="50" d="-3.3"/>
<point f="315" d="0.0"/>
<point f="1000" d="-0.5"/>
</curve>
<curve name="Memorex HBS-II 90">
<point f="50" d="-3.0"/>
<point f="315" d="0.5"/>
<point f="1000" d="0.4"/>
</curve>
<curve name="Memorex HBS-II 100">
<point f="50" d="-3.5"/>
<point f="315" d="0.6"/>
<point f="1000" d="0.0"/>
</curve>
<curve name="TDK SA 90">
<point f="50" d="-1.4"/>
<point f="315" d="2.3"/>
<point f="1000" d="1.3"/>
</curve>
<curve name="TDK SA 100">
<point f="50" d="-2.1"/>
<point f="315" d="1.4"/>
<point f="1000" d="0.5"/>
</curve>
<curve name="Denon HD-M 90">
<point f="50" d="1.6"/>
<point f="315" d="5.7"/>
<point f="1000" d="4.7"/>
</curve>
<curve name="Denon HD-M 100">
<point f="50" d="1.6"/>
<point f="315" d="5.8"/>
<point f="1000" d="5.1"/>
</curve>
<curve name="Maxell MX 90">
<point f="50" d="1.2"/>
<point f="315" d="4.9"/>
<point f="1000" d="4.1"/>
</curve>
<curve name="Maxell MX 100">
<point f="50" d="1.1"/>
<point f="315" d="5.1"/>
<point f="1000" d="5.0"/>
</curve>
<curve name="TDK MA 90">
<point f="50" d="1.9"/>
<point f="315" d="5.9"/>
<point f="1000" d="6.1"/>
</curve>
<curve name="TDK MA 110">
<point f="50" d="2.0"/>
<point f="315" d="5.8"/>
<point f="1000" d="6.1"/>
</curve>
</equalizationeffect>
BASF studio master 468:
<equalizationeffect>
<curve name="BASF Studio Master 468 76.2 cm/s">
<point f="1000" d="0.5"/>
<point f="10000" d="1.5"/>
<point f="16000" d="2.5"/>
</curve>
<curve name="BASF Studio Master 468 38.1 cm/s">
<point f="1000" d="-0.5"/>
<point f="10000" d="1.5"/>
<point f="16000" d="1.5"/>
</curve>
<curve name="BASF Studio Master 468 19.05 cm/s">
<point f="1000" d="0.5"/>
<point f="10000" d="1.5"/>
<point f="12500" d="1.5"/>
</curve>
</equalizationeffect>
RMG Studio tapes:
<equalizationeffect>
<curve name="RMG Studio Master SM911 76.2 cm/s">
<point f="1000" d="1.5"/>
<point f="10000" d="1.5"/>
<point f="16000" d="1.5"/>
</curve>
<curve name="RMG Studio Master SM911 38.1 cm/s">
<point f="1000" d="1.5"/>
<point f="10000" d="2.5"/>
<point f="16000" d="3"/>
</curve>
<curve name="RMG Studio Master SM911 19.05 cm/s">
<point f="1000" d="1"/>
<point f="10000" d="0.5"/>
<point f="12500" d="0.5"/>
</curve>
<curve name="RMG PER528 76.2 cm/s">
<point f="1000" d="0"/>
<point f="10000" d="1"/>
<point f="16000" d="1.5"/>
</curve>
<curve name="RMG PER528 38.1 cm/s">
<point f="1000" d="0"/>
<point f="10000" d="0.5"/>
<point f="16000" d="1"/>
</curve>
<curve name="RMG PER528 19.05 cm/s">
<point f="1000" d="0"/>
<point f="10000" d="2"/>
<point f="12500" d="2"/>
</curve>
</equalizationeffect>
Sound absorptions:
<equalizationeffect>
<curve name="Absorption: Brick Unglazed">
<point f="125.000" d="-0,132283"/>
<point f="250.000" d="-0,132283"/>
<point f="500.000" d="-0,132283"/>
<point f="1000.000" d="-0,177288"/>
<point f="2000.000" d="-0,222764"/>
<point f="4000.000" d="-0,315171"/>
</curve>
<curve name="Absorption: Brick Unglazed, Painted">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,043648"/>
<point f="500.000" d="-0,087739"/>
<point f="1000.000" d="-0,087739"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,132283"/>
</curve>
<curve name="Absorption: Carpet Heavy, on Concrete">
<point f="125.000" d="-0,087739"/>
<point f="250.000" d="-0,268721"/>
<point f="500.000" d="-0,655015"/>
<point f="1000.000" d="-2,006595"/>
<point f="2000.000" d="-3,979400"/>
<point f="4000.000" d="-4,559320"/>
</curve>
<curve name="Absorption: Carpet Heavy, on 40oz Hairfelt or Foam Rubber on Concrete">
<point f="125.000" d="-0,362122"/>
<point f="250.000" d="-1,191864"/>
<point f="500.000" d="-3,665315"/>
<point f="1000.000" d="-5,086383"/>
<point f="2000.000" d="-5,376020"/>
<point f="4000.000" d="-5,686362"/>
</curve>
<curve name="Absorption: Carpet Heavy, with Impermeable Latex Backing on 40oz Hairfelt or Foam Rubber on Concrete">
<point f="125.000" d="-0,362122"/>
<point f="250.000" d="-1,366771"/>
<point f="500.000" d="-2,146702"/>
<point f="1000.000" d="-1,804561"/>
<point f="2000.000" d="-2,839967"/>
<point f="4000.000" d="-4,317983"/>
</curve>
<curve name="Absorption: Concrete Block Light, Porous">
<point f="125.000" d="-1,938200"/>
<point f="250.000" d="-2,518120"/>
<point f="500.000" d="-1,611509"/>
<point f="1000.000" d="-1,487417"/>
<point f="2000.000" d="-2,146702"/>
<point f="4000.000" d="-1,249387"/>
</curve>
<curve name="Absorption: Concrete Block Dense, Painted">
<point f="125.000" d="-0,457575"/>
<point f="250.000" d="-0,222764"/>
<point f="500.000" d="-0,268721"/>
<point f="1000.000" d="-0,315171"/>
<point f="2000.000" d="-0,409586"/>
<point f="4000.000" d="-0,362122"/>
</curve>
<curve name="Absorption: Gypsum Board– 1/2″, Nailed to 2×4, 16″ O.C.">
<point f="125.000" d="-1,487417"/>
<point f="250.000" d="-0,457575"/>
<point f="500.000" d="-0,222764"/>
<point f="1000.000" d="-0,177288"/>
<point f="2000.000" d="-0,315171"/>
<point f="4000.000" d="-0,409586"/>
</curve>
<curve name="Absorption: Marble or Glazed Tile">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,043648"/>
<point f="500.000" d="-0,043648"/>
<point f="1000.000" d="-0,043648"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Plaster– Gypsum, or Lime, Smooth Finish on Tile or Brick">
<point f="125.000" d="-0,056828"/>
<point f="250.000" d="-0,065638"/>
<point f="500.000" d="-0,087739"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,222764"/>
</curve>
<curve name="Absorption: Plaster– Gypsum, or Lime, Rough Finish on Lath">
<point f="125.000" d="-0,655015"/>
<point f="250.000" d="-0,457575"/>
<point f="500.000" d="-0,268721"/>
<point f="1000.000" d="-0,222764"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,132283"/>
</curve>
<curve name="Absorption: Plaster– Gypsum, or Lime, Smooth Finish on Lath">
<point f="125.000" d="-0,655015"/>
<point f="250.000" d="-0,457575"/>
<point f="500.000" d="-0,268721"/>
<point f="1000.000" d="-0,177288"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,132283"/>
</curve>
<curve name="Absorption: Plywood Paneling– 3/8″ Thick">
<point f="125.000" d="-1,426675"/>
<point f="250.000" d="-1,079054"/>
<point f="500.000" d="-0,809219"/>
<point f="1000.000" d="-0,409586"/>
<point f="2000.000" d="-0,457575"/>
<point f="4000.000" d="-0,506100"/>
</curve>
<curve name="Absorption: Light Velour– 10oz/sq yd, Hung Straight, in Contact with Wall">
<point f="125.000" d="-0,132283"/>
<point f="250.000" d="-0,177288"/>
<point f="500.000" d="-0,506100"/>
<point f="1000.000" d="-0,809219"/>
<point f="2000.000" d="-1,191864"/>
<point f="4000.000" d="-1,870866"/>
</curve>
<curve name="Absorption: Medium Velour– 14oz/sq yd, draped to half area">
<point f="125.000" d="-0,315171"/>
<point f="250.000" d="-1,611509"/>
<point f="500.000" d="-2,924298"/>
<point f="1000.000" d="-6,020600"/>
<point f="2000.000" d="-5,228787"/>
<point f="4000.000" d="-3,979400"/>
</curve>
<curve name="Absorption: Heavy Velour– 18-oz/sq yd, Draped to Half Area">
<point f="125.000" d="-0,655015"/>
<point f="250.000" d="-1,870866"/>
<point f="500.000" d="-3,467875"/>
<point f="1000.000" d="-5,528420"/>
<point f="2000.000" d="-5,228787"/>
<point f="4000.000" d="-4,559320"/>
</curve>
<curve name="Absorption: Concrete or Terrazzo">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,043648"/>
<point f="500.000" d="-0,065638"/>
<point f="1000.000" d="-0,087739"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Linoleum– Asphalt, Rubber, or Cork Tile on Concrete">
<point f="125.000" d="-0,087739"/>
<point f="250.000" d="-0,132283"/>
<point f="500.000" d="-0,132283"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,132283"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Wood">
<point f="125.000" d="-0,705811"/>
<point f="250.000" d="-0,506100"/>
<point f="500.000" d="-0,457575"/>
<point f="1000.000" d="-0,315171"/>
<point f="2000.000" d="-0,268721"/>
<point f="4000.000" d="-0,315171"/>
</curve>
<curve name="Absorption: Wood Parquet in Asphalt on Concrete">
<point f="125.000" d="-0,177288"/>
<point f="250.000" d="-0,177288"/>
<point f="500.000" d="-0,315171"/>
<point f="1000.000" d="-0,268721"/>
<point f="2000.000" d="-0,268721"/>
<point f="4000.000" d="-0,315171"/>
</curve>
<curve name="Absorption: Large Panes of Heavy Plate Glass">
<point f="125.000" d="-0,861861"/>
<point f="250.000" d="-0,268721"/>
<point f="500.000" d="-0,177288"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Ordinary Window Glass">
<point f="125.000" d="-1,870866"/>
<point f="250.000" d="-1,249387"/>
<point f="500.000" d="-0,861861"/>
<point f="1000.000" d="-0,555173"/>
<point f="2000.000" d="-0,315171"/>
<point f="4000.000" d="-0,177288"/>
</curve>
<curve name="Absorption: Water Surface, e.g. Swimming Pool">
<point f="125.000" d="-0,034883"/>
<point f="250.000" d="-0,034883"/>
<point f="500.000" d="-0,056828"/>
<point f="1000.000" d="-0,705811"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-1,249387"/>
</curve>
<curve name="Absorption: Chairs– Metal or Wood Seats, Each, Unoccupied">
<point f="125.000" d="-0,705811"/>
<point f="250.000" d="-0,915150"/>
<point f="500.000" d="-1,079054"/>
<point f="1000.000" d="-2,146702"/>
<point f="2000.000" d="-2,076083"/>
<point f="4000.000" d="-1,549020"/>
</curve>
<curve name="Absorption: Audience– Seated in Upholstered Seats, Per Square Foot of Floor Area">
<point f="125.000" d="-3,979400"/>
<point f="250.000" d="-5,850267"/>
<point f="500.000" d="-9,208188"/>
<point f="1000.000" d="-13,979400"/>
<point f="2000.000" d="-11,549020"/>
<point f="4000.000" d="-8,239087"/>
</curve>
<curve name="Absorption: Concrete (unpainted, rough finish)">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,087739"/>
<point f="500.000" d="-0,177288"/>
<point f="1000.000" d="-0,268721"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,457575"/>
</curve>
<curve name="Absorption: Concrete (sealed or painted)">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,043648"/>
<point f="500.000" d="-0,087739"/>
<point f="1000.000" d="-0,087739"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Marble or glazed tile">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,043648"/>
<point f="500.000" d="-0,043648"/>
<point f="1000.000" d="-0,043648"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Vinyl tile or linoleum on concrete">
<point f="125.000" d="-0,087739"/>
<point f="250.000" d="-0,132283"/>
<point f="500.000" d="-0,132283"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,132283"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Wood parquet on concrete">
<point f="125.000" d="-0,177288"/>
<point f="250.000" d="-0,177288"/>
<point f="500.000" d="-0,315171"/>
<point f="1000.000" d="-0,268721"/>
<point f="2000.000" d="-0,268721"/>
<point f="4000.000" d="-0,315171"/>
</curve>
<curve name="Absorption: Wood flooring on joists">
<point f="125.000" d="-0,705811"/>
<point f="250.000" d="-0,506100"/>
<point f="500.000" d="-0,457575"/>
<point f="1000.000" d="-0,315171"/>
<point f="2000.000" d="-0,268721"/>
<point f="4000.000" d="-0,315171"/>
</curve>
<curve name="Absorption: Benches (wooden, empty)">
<point f="125.000" d="-0,457575"/>
<point f="250.000" d="-0,409586"/>
<point f="500.000" d="-0,362122"/>
<point f="1000.000" d="-0,362122"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,362122"/>
</curve>
<curve name="Absorption: Benches (wooden, 2/3 occupied)">
<point f="125.000" d="-2,006595"/>
<point f="250.000" d="-2,218487"/>
<point f="500.000" d="-2,757241"/>
<point f="1000.000" d="-3,279021"/>
<point f="2000.000" d="-3,565473"/>
<point f="4000.000" d="-3,279021"/>
</curve>
<curve name="Absorption: Benches (wooden, fully occupied)">
<point f="125.000" d="-3,010300"/>
<point f="250.000" d="-3,565473"/>
<point f="500.000" d="-4,685211"/>
<point f="1000.000" d="-6,197888"/>
<point f="2000.000" d="-6,989700"/>
<point f="4000.000" d="-6,197888"/>
</curve>
<curve name="Absorption: Benches (cushioned seats and backs, empty)">
<point f="125.000" d="-1,674911"/>
<point f="250.000" d="-2,218487"/>
<point f="500.000" d="-2,365720"/>
<point f="1000.000" d="-2,518120"/>
<point f="2000.000" d="-2,441251"/>
<point f="4000.000" d="-2,839967"/>
</curve>
<curve name="Absorption: Benches (cushioned seats and backs, 2/3 occupied)">
<point f="125.000" d="-2,518120"/>
<point f="250.000" d="-3,565473"/>
<point f="500.000" d="-4,559320"/>
<point f="1000.000" d="-5,528420"/>
<point f="2000.000" d="-5,528420"/>
<point f="4000.000" d="-4,814861"/>
</curve>
<curve name="Absorption: Benches (cushioned seats and backs, fully occupied)">
<point f="125.000" d="-3,010300"/>
<point f="250.000" d="-4,436975"/>
<point f="500.000" d="-6,197888"/>
<point f="1000.000" d="-8,538720"/>
<point f="2000.000" d="-8,538720"/>
<point f="4000.000" d="-6,197888"/>
</curve>
<curve name="Absorption: Theater seats (wood, empty)">
<point f="125.000" d="-0,132283"/>
<point f="250.000" d="-0,177288"/>
<point f="500.000" d="-0,222764"/>
<point f="1000.000" d="-0,315171"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,362122"/>
</curve>
<curve name="Absorption: Theater seats (wood, 2/3 occupied)">
<point f="125.000" d="-1,804561"/>
<point f="250.000" d="-1,023729"/>
<point f="500.000" d="-1,426675"/>
<point f="1000.000" d="-3,279021"/>
<point f="2000.000" d="-3,565473"/>
<point f="4000.000" d="-3,279021"/>
</curve>
<curve name="Absorption: Theater seats (wood, fully occupied)">
<point f="125.000" d="-3,010300"/>
<point f="250.000" d="-1,549020"/>
<point f="500.000" d="-2,218487"/>
<point f="1000.000" d="-6,197888"/>
<point f="2000.000" d="-6,989700"/>
<point f="4000.000" d="-6,197888"/>
</curve>
<curve name="Absorption: Seats (fabric-upholsterd, empty)">
<point f="125.000" d="-2,924298"/>
<point f="250.000" d="-4,685211"/>
<point f="500.000" d="-6,989700"/>
<point f="1000.000" d="-9,208188"/>
<point f="2000.000" d="-7,447275"/>
<point f="4000.000" d="-5,228787"/>
</curve>
<curve name="Absorption: Seats (fabric-upholsterd, fully occupied)">
<point f="125.000" d="-3,979400"/>
<point f="250.000" d="-5,850267"/>
<point f="500.000" d="-9,208188"/>
<point f="1000.000" d="-13,979400"/>
<point f="2000.000" d="-11,549020"/>
<point f="4000.000" d="-8,239087"/>
</curve>
<curve name="Absorption: Brick (natural)">
<point f="125.000" d="-0,132283"/>
<point f="250.000" d="-0,132283"/>
<point f="500.000" d="-0,132283"/>
<point f="1000.000" d="-0,177288"/>
<point f="2000.000" d="-0,222764"/>
<point f="4000.000" d="-0,315171"/>
</curve>
<curve name="Absorption: Brick (painted)">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,043648"/>
<point f="500.000" d="-0,087739"/>
<point f="1000.000" d="-0,087739"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,132283"/>
</curve>
<curve name="Absorption: Concrete block (coarse)">
<point f="125.000" d="-1,938200"/>
<point f="250.000" d="-2,518120"/>
<point f="500.000" d="-1,611509"/>
<point f="1000.000" d="-1,487417"/>
<point f="2000.000" d="-2,146702"/>
<point f="4000.000" d="-1,249387"/>
</curve>
<curve name="Absorption: Concrete block (painted)">
<point f="125.000" d="-0,457575"/>
<point f="250.000" d="-0,222764"/>
<point f="500.000" d="-0,268721"/>
<point f="1000.000" d="-0,315171"/>
<point f="2000.000" d="-0,409586"/>
<point f="4000.000" d="-0,362122"/>
</curve>
<curve name="Absorption: Concrete (poured, rough finish, unpainted)">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,087739"/>
<point f="500.000" d="-0,177288"/>
<point f="1000.000" d="-0,268721"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,457575"/>
</curve>
<curve name="Absorption: Doors (solid wood panels)">
<point f="125.000" d="-0,457575"/>
<point f="250.000" d="-0,315171"/>
<point f="500.000" d="-0,222764"/>
<point f="1000.000" d="-0,177288"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,177288"/>
</curve>
<curve name="Absorption: Glass (1/4 plate, large pane)">
<point f="125.000" d="-0,861861"/>
<point f="250.000" d="-0,268721"/>
<point f="500.000" d="-0,177288"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Glass (small pane)">
<point f="125.000" d="-0,177288"/>
<point f="250.000" d="-0,177288"/>
<point f="500.000" d="-0,132283"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,087739"/>
</curve>
<curve name="Absorption: Plasterboard (12mm (1/2) paneling on studs)">
<point f="125.000" d="-1,487417"/>
<point f="250.000" d="-0,457575"/>
<point f="500.000" d="-0,268721"/>
<point f="1000.000" d="-0,222764"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,177288"/>
</curve>
<curve name="Absorption: Plaster (gypsum or lime, on masonry)">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,087739"/>
<point f="500.000" d="-0,087739"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,222764"/>
</curve>
<curve name="Absorption: Plaster (gypsum or lime, on wood lath)">
<point f="125.000" d="-0,655015"/>
<point f="250.000" d="-0,457575"/>
<point f="500.000" d="-0,268721"/>
<point f="1000.000" d="-0,222764"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,177288"/>
</curve>
<curve name="Absorption: Plywood (3mm(1/8) paneling over 31.7mm(1-1/4) airspace)">
<point f="125.000" d="-0,705811"/>
<point f="250.000" d="-1,249387"/>
<point f="500.000" d="-0,555173"/>
<point f="1000.000" d="-0,362122"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,362122"/>
</curve>
<curve name="Absorption: Plywood (3mm(1/8) paneling over 57.1mm( 2-1/4) airspace)">
<point f="125.000" d="-1,426675"/>
<point f="250.000" d="-0,969100"/>
<point f="500.000" d="-0,457575"/>
<point f="1000.000" d="-0,457575"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,362122"/>
</curve>
<curve name="Absorption: Plywood (5mm(3/16) paneling over 50mm(2) airspace)">
<point f="125.000" d="-2,076083"/>
<point f="250.000" d="-1,191864"/>
<point f="500.000" d="-0,809219"/>
<point f="1000.000" d="-0,457575"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,222764"/>
</curve>
<curve name="Absorption: Plywood (5mm(3/16) panel, 25mm(1) fiberglass in 50mm(2) airspace)">
<point f="125.000" d="-2,365720"/>
<point f="250.000" d="-1,938200"/>
<point f="500.000" d="-0,915150"/>
<point f="1000.000" d="-0,457575"/>
<point f="2000.000" d="-0,362122"/>
<point f="4000.000" d="-0,222764"/>
</curve>
<curve name="Absorption: Plywood (6mm(1/4) paneling, airspace, light bracing)">
<point f="125.000" d="-1,549020"/>
<point f="250.000" d="-1,249387"/>
<point f="500.000" d="-0,705811"/>
<point f="1000.000" d="-0,457575"/>
<point f="2000.000" d="-0,457575"/>
<point f="4000.000" d="-0,457575"/>
</curve>
<curve name="Absorption: Plywood (10mm(3/8) paneling, airspace, light bracing)">
<point f="125.000" d="-1,426675"/>
<point f="250.000" d="-1,079054"/>
<point f="500.000" d="-0,809219"/>
<point f="1000.000" d="-0,409586"/>
<point f="2000.000" d="-0,457575"/>
<point f="4000.000" d="-0,506100"/>
</curve>
<curve name="Absorption: Plywood (19mm(3/4) paneling, airspace, light bracing)">
<point f="125.000" d="-0,969100"/>
<point f="250.000" d="-0,861861"/>
<point f="500.000" d="-0,705811"/>
<point f="1000.000" d="-0,555173"/>
<point f="2000.000" d="-0,457575"/>
<point f="4000.000" d="-0,457575"/>
</curve>
<curve name="Absorption: Drapery (10 oz/yd2, 340 g/m2, flat against wall)">
<point f="125.000" d="-0,177288"/>
<point f="250.000" d="-0,222764"/>
<point f="500.000" d="-0,506100"/>
<point f="1000.000" d="-0,861861"/>
<point f="2000.000" d="-1,549020"/>
<point f="4000.000" d="-1,870866"/>
</curve>
<curve name="Absorption: Drapery (14 oz/yd2, 476 g/m2, flat against wall)">
<point f="125.000" d="-0,222764"/>
<point f="250.000" d="-0,315171"/>
<point f="500.000" d="-0,604807"/>
<point f="1000.000" d="-1,079054"/>
<point f="2000.000" d="-1,674911"/>
<point f="4000.000" d="-1,870866"/>
</curve>
<curve name="Absorption: Drapery (18 oz/yd2, 612 g/m2, flat against wall)">
<point f="125.000" d="-0,222764"/>
<point f="250.000" d="-0,555173"/>
<point f="500.000" d="-1,870866"/>
<point f="1000.000" d="-2,839967"/>
<point f="2000.000" d="-2,076083"/>
<point f="4000.000" d="-1,938200"/>
</curve>
<curve name="Absorption: Drapery (14 oz/yd2, 476 g/m2, pleated 50%)">
<point f="125.000" d="-0,315171"/>
<point f="250.000" d="-1,611509"/>
<point f="500.000" d="-2,924298"/>
<point f="1000.000" d="-6,020600"/>
<point f="2000.000" d="-5,228787"/>
<point f="4000.000" d="-3,979400"/>
</curve>
<curve name="Absorption: Drapery (18 oz/yd2, 612 g/m2, pleated 50%)">
<point f="125.000" d="-0,655015"/>
<point f="250.000" d="-1,870866"/>
<point f="500.000" d="-3,279021"/>
<point f="1000.000" d="-6,020600"/>
<point f="2000.000" d="-5,228787"/>
<point f="4000.000" d="-3,979400"/>
</curve>
<curve name="Absorption: Fiberglass board (25mm(1) thick)">
<point f="125.000" d="-0,268721"/>
<point f="250.000" d="-0,969100"/>
<point f="500.000" d="-4,559320"/>
<point f="1000.000" d="-10,000000"/>
<point f="2000.000" d="-13,010300"/>
<point f="4000.000" d="-16,989700"/>
</curve>
<curve name="Absorption: Fiberglass board (50mm(2) thick)">
<point f="125.000" d="-0,861861"/>
<point f="250.000" d="-6,197888"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-20,000000"/>
<point f="2000.000" d="-20,000000"/>
<point f="4000.000" d="-20,000000"/>
</curve>
<curve name="Absorption: Fiberglass board (75mm(3) thick)">
<point f="125.000" d="-3,279021"/>
<point f="250.000" d="-20,000000"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-20,000000"/>
<point f="2000.000" d="-20,000000"/>
<point f="4000.000" d="-20,000000"/>
</curve>
<curve name="Absorption: Fiberglass board (100mm(4) thick)">
<point f="125.000" d="-20,000000"/>
<point f="250.000" d="-20,000000"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-20,000000"/>
<point f="2000.000" d="-20,000000"/>
<point f="4000.000" d="-15,228787"/>
</curve>
<curve name="Absorption: Open brick pattern over 75mm(3) fiberglass">
<point f="125.000" d="-2,218487"/>
<point f="250.000" d="-4,559320"/>
<point f="500.000" d="-8,239087"/>
<point f="1000.000" d="-6,020600"/>
<point f="2000.000" d="-4,559320"/>
<point f="4000.000" d="-3,979400"/>
</curve>
<curve name="Absorption: Pageboard over 25mm(1) fiberglass board">
<point f="125.000" d="-0,362122"/>
<point f="250.000" d="-1,674911"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-6,197888"/>
<point f="2000.000" d="-1,804561"/>
<point f="4000.000" d="-0,555173"/>
</curve>
<curve name="Absorption: Pageboard over 50mm(2) fiberglass board">
<point f="125.000" d="-1,307683"/>
<point f="250.000" d="-15,228787"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-4,685211"/>
<point f="2000.000" d="-1,804561"/>
<point f="4000.000" d="-0,655015"/>
</curve>
<curve name="Absorption: Pageboard over 75mm(3) fiberglass board">
<point f="125.000" d="-2,924298"/>
<point f="250.000" d="-20,000000"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-5,086383"/>
<point f="2000.000" d="-2,006595"/>
<point f="4000.000" d="-0,705811"/>
</curve>
<curve name="Absorption: Performated metal (13% open, over 50mm(2) fiberglass)">
<point f="125.000" d="-1,249387"/>
<point f="250.000" d="-4,436975"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-15,228787"/>
<point f="2000.000" d="-9,208188"/>
<point f="4000.000" d="-10,969100"/>
</curve>
<curve name="Absorption: Plasterboard (12mm(1/2) in suspended ceiling grid)">
<point f="125.000" d="-0,705811"/>
<point f="250.000" d="-0,506100"/>
<point f="500.000" d="-0,177288"/>
<point f="1000.000" d="-0,177288"/>
<point f="2000.000" d="-0,315171"/>
<point f="4000.000" d="-0,362122"/>
</curve>
<curve name="Absorption: Underlay in perforated metal panels (25mm(1) batts)">
<point f="125.000" d="-3,098039"/>
<point f="250.000" d="-6,575773"/>
<point f="500.000" d="-3,665315"/>
<point f="1000.000" d="-6,382722"/>
<point f="2000.000" d="-10,000000"/>
<point f="4000.000" d="-6,777807"/>
</curve>
<curve name="Absorption: Metal deck (perforated channels,25mm(1) batts)">
<point f="125.000" d="-0,915150"/>
<point f="250.000" d="-5,086383"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-9,208188"/>
<point f="2000.000" d="-3,187588"/>
<point f="4000.000" d="-1,366771"/>
</curve>
<curve name="Absorption: Metal deck (perforated channels, 75mm(3) batts)">
<point f="125.000" d="-5,686362"/>
<point f="250.000" d="-20,000000"/>
<point f="500.000" d="-20,000000"/>
<point f="1000.000" d="-9,586073"/>
<point f="2000.000" d="-3,187588"/>
<point f="4000.000" d="-1,611509"/>
</curve>
<curve name="Absorption: Plaster (gypsum or lime, on masonary)">
<point f="125.000" d="-0,043648"/>
<point f="250.000" d="-0,087739"/>
<point f="500.000" d="-0,087739"/>
<point f="1000.000" d="-0,132283"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,222764"/>
</curve>
<curve name="Absorption: Plaster (gypsum or lime, rough finish or timber lath)">
<point f="125.000" d="-0,655015"/>
<point f="250.000" d="-0,457575"/>
<point f="500.000" d="-0,268721"/>
<point f="1000.000" d="-0,222764"/>
<point f="2000.000" d="-0,177288"/>
<point f="4000.000" d="-0,177288"/>
</curve>
<curve name="Absorption: Sprayed cellulose fiber (16mm(5/8) on solid backing)">
<point f="125.000" d="-0,222764"/>
<point f="250.000" d="-0,757207"/>
<point f="500.000" d="-2,518120"/>
<point f="1000.000" d="-6,777807"/>
<point f="2000.000" d="-10,000000"/>
<point f="4000.000" d="-10,457575"/>
</curve>
<curve name="Absorption: Sprayed cellulose fiber (25mm(1) on solid backing)">
<point f="125.000" d="-0,362122"/>
<point f="250.000" d="-1,487417"/>
<point f="500.000" d="-6,020600"/>
<point f="1000.000" d="-16,989700"/>
<point f="2000.000" d="-11,549020"/>
<point f="4000.000" d="-6,197888"/>
</curve>
<curve name="Absorption: Sprayed cellulose fiber (32mm(1-1/4) on solid backing)">
<point f="125.000" d="-0,457575"/>
<point f="250.000" d="-1,549020"/>
<point f="500.000" d="-5,686362"/>
<point f="1000.000" d="-10,969100"/>
<point f="2000.000" d="-16,989700"/>
<point f="4000.000" d="-16,989700"/>
</curve>
<curve name="Absorption: Sprayed cellulose fiber (75mm(3) on solid backing)">
<point f="125.000" d="-5,228787"/>
<point f="250.000" d="-13,010300"/>
<point f="500.000" d="-60,000000"/>
<point f="1000.000" d="-8,239087"/>
<point f="2000.000" d="-8,239087"/>
<point f="4000.000" d="-10,000000"/>
</curve>
<curve name="Absorption: Wood tongue-and-groove roof decking">
<point f="125.000" d="-1,191864"/>
<point f="250.000" d="-0,915150"/>
<point f="500.000" d="-0,655015"/>
<point f="1000.000" d="-0,362122"/>
<point f="2000.000" d="-0,604807"/>
<point f="4000.000" d="-0,457575"/>
</curve>
<curve name="Absorption: People-adults (per 1/10 person)">
<point f="125.000" d="-1,249387"/>
<point f="250.000" d="-1,870866"/>
<point f="500.000" d="-2,365720"/>
<point f="1000.000" d="-2,676062"/>
<point f="2000.000" d="-3,010300"/>
<point f="4000.000" d="-3,010300"/>
</curve>
<curve name="Absorption: People-high school students (per 1/10 person">
<point f="125.000" d="-1,079054"/>
<point f="250.000" d="-1,549020"/>
<point f="500.000" d="-2,076083"/>
<point f="1000.000" d="-2,365720"/>
<point f="2000.000" d="-2,596373"/>
<point f="4000.000" d="-2,596373"/>
</curve>
<curve name="Absorption: People-elementary students (per 1/10 person)">
<point f="125.000" d="-0,861861"/>
<point f="250.000" d="-1,135093"/>
<point f="500.000" d="-1,426675"/>
<point f="1000.000" d="-1,674911"/>
<point f="2000.000" d="-1,870866"/>
<point f="4000.000" d="-1,870866"/>
</curve>
<curve name="Absorption: Ventilating grilles">
<point f="125.000" d="-1,549020"/>
<point f="250.000" d="-2,218487"/>
<point f="500.000" d="-3,010300"/>
<point f="1000.000" d="-3,010300"/>
<point f="2000.000" d="-3,010300"/>
<point f="4000.000" d="-2,218487"/>
</curve>
<curve name="Absorption: Water or ice surface">
<point f="125.000" d="-0,034883"/>
<point f="250.000" d="-0,034883"/>
<point f="500.000" d="-0,056828"/>
<point f="1000.000" d="-0,065638"/>
<point f="2000.000" d="-0,087739"/>
<point f="4000.000" d="-0,109954"/>
</curve>
</equalizationeffect>