This topic was started so that Audacity users could share their Eq curves with other Audacity users. Sadly the take-up of this opportunity has been disappointing and very few working Eq curves have been submitted.
This topic is still open, so you are very welcome to submit any Eq curves that you come up with that you think may be useful to other Audacity users.
I posted it so people could use it in Audacity, obviously. See:
Submit your EQ Curves - #7 by Gale_Andrews .
I assumed someone interested would create XML files from the information given, but it seems no-one was interested, or did not share the files.
As I explained, the entries in the FEQ files are for the following 18 frequencies in Hz:
55
77
110
156
220
311
440
622
880
1200
1800
2500
3500
5000
7000
10000
14000
20000
Here for example is “Metal.FEQ”. This contains the following 18 gain values (amounts by which the frequency will be increased or reduced) for each of the 18 frequencies above:
4
5
5
3
0
-1
-2
-1
0
1
1
1
1
0
-1
-1
-1
-1
So, open Effect > Equalization. Find 55 Hz (the first frequency) in the Equalization graph. Then find the first gain value in “Metal.FEQ”. That first value is “4”. So increase the 55 Hz frequency by 4 dB in Equalization. Repeat for the other 17 values. If the gain value is 0, there is no need to create a point on the graph. If the gain value is negative (for example, -1), reduce the gain for that frequency by that amount.
Alternatively (more accurately), create an XML file using the values above. Then import it into Equalization using “Save/Manage Curves…”, then “Import…”.
This is an example of correct syntax of an XML EQ file that Audacity will be able to import:
<equalizationeffect>
<curve name="new default walkie talkie curve">
<point f="100.000000000000" d="-20.000000000000"/>
<point f="125.000000000000" d="-16.000000000000"/>
</curve>
</equalizationeffect>
“f” is the frequency (the first set of code in this message) and “d” is the gain amount (the second set of code).
Gale
Does anybody out there have any EQ curve presets that work well as starting point for live rock concert recordings?
I always find myself wanting to mostly just increase or reduce bass in these recordings…But bass cut and bass boost are usually a little too extreme and I end up messing around a lot trying to find something I like.
Just wondering if anybody works a lot with live concert recordings and might have some presets that might make for decent starting points when working on those kinds of files.
This is all personal taste. Try some presets in the FEQ file, look in your operating system control panel to see if your sound card has an Equalizer with a rock preset that you can copy, or search on Google.
Gale
Hey, guys. Just passing through. I saw that no one had really posted any XML files, so did a little typing.
This file contains the default files from Audacity 2, as well as the default ones from the older release (minus the deprecated ones). In addition, I added the Foobar EQs that Gale posted originally, as well as the EQs that are used within Windows Media Player.
To use this file, just take away the " (EX)" part of the filename and overwrite your default EQ file (wherever it may be) and you should be good to go. I know it’s been a while, but I hope that anyone else that passes by will fin it useful.
EQCurves (EX).xml (43.1 KB)
These are the curves you should have. (To save time, I just copied the names from the XML file.)
There you have it. Let me know if there are any issues.
Thanks a lot.
Nice compilation. Took me a while to activate the new curves. The management is somewhat strange - especially if you do not change your curves regularly. However, they are now present and I’ll see if they are useful to me.
Dear all,
Here is my specification for an A-filter, the filter specified in IEC 61672 for A-weighting sound prior to measurement. Even if this filter has been challenged because it doesn’t quite give a true and complete answer to psychoacoustic response measurement of human hearing, it prevails in noise legislation (for instance, OSHA and most noise ordinances) and noise criteria (for instance, ISO 1999).
Moreover, it is one of the two methods to specify background electric noise in audio gear (amplifiers, microphones…). It can be saved to an .xml file and imported from the Effects / Equailizer window.
For knowlegeable people in the list: Is it necessary to provide f and d values with 12 decimal figures?
Regards,
Federico Miyara
Thanks for your contribution fmiyara.
No, you don’t need all the decimal places.
Also, the “curve name” should really be set to something relevant to the curve. The “curve name” is the name that appears in the Equalization effect when the curve has been imported, so perhaps something like “A-weighting”.
The attached file is the same as your submission, but with the curve name changed to “A-weighting” and the “f” and “d” parameter written to 1 decimal place.
a-weight.xml (1.18 KB)
1st time Audacity user here. Nice little tool too. For 78rpm re-equalization, I have taken the RIAA inverse curve and the 250,0 curve generated by the tool and added them together. These seem useful if using 1980s era phono preamp with built-in RIAA curve. By combining the two curves, you don’t have to apply the RIAA inverse and then the 250,0 curve. I am playing these back at 78rpm or appropriate speed so there is no speed/pitch shifting taking place. Seems to save a little time anyway. I’m posting the result of the combined curve here in case anyone is interested. This is just one curve, but theoretically you could do it with any of the 78rpm curves. Regards, Ken Martin
I am making a podcast where I wanted to have something similar to what I’ve heard on the public radio show Radio Lab (great show!). In the show, there is an occasional voice that adds a response or echo to the main text and it is similar to the Telephone filter only a narrower filter. I played around and this is what I came up with:
Rock EQ Preset
This is a “Rock” EQ Setting based on EQ plugin settings from other cubase software. For those of you who are not sure how an EQ works or have misconceptions, here is a link that could help explain it. Enjoy!
http://www.digitaltrends.com/home-theater/eq-explainer/
Rock_EQ_Preset.XML (9.11 KB)
Thanks BuckRocks001.
There’s a lot of detail (lots of defined points) in that EQ setting. How did you make it?
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/
Rename File Extension from .TXT to .XML
Done…
A-Jay - Copy.TXT (9.19 KB)
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)