I’m going to make a broad statement that seems to cause some to fret.

All Digital Parametric EQ’s are the same.

Read the entire post to fully understand the statement.


Ok now time to explain.

I know your sitting there saying but hey my Waves , URS, Oxy, UAD, Vox, blah blah sound completely different. This is why. With emulation plugins you have EQ+X. X can = Saturation, bandwidth limits, softclips, & so on. Now take away X what do you have? The EQ algorithm.
Lets look at Digital EQ types.

1. Parametric/Series – “PEQ”.
(These are the most common track EQ’s, Most channelstrip EQ’s, Most Plugin EQ’s,  Native DAW eq’s, it’s never ending. )

2. Parallel – More uncommon in the digital world. Algorithmix has one.

3. Linear phase – Mastering EQ

These 3 types will be different. But PEQ’s are the most commonly used/emulated.
You can take any respectable  PEQ and create all of the curve/phase characteristics of any other digital PEQ. It is the “X” that is the variable. The Q & Gain numerical value settings are a developer decision. You can’t compare EQ’s by matching dials & numbers. You have to use analyzers & match curves.

Digital emulations for the most part are marketing hype. If you use a fully variable PEQ like the one that comes native with your host & saturation plugins/tools. You will be able to recreate just about any classic console EQ you have heard.

Don’t just take my word for it, listen to the developers.

Read this from Algorithmix

Quote:
The truth is that with a properly designed, fully parametric analytic PEQ, every amplitude and phase characteristic of any other equalizer setup can be recreated. Of course, the contribution of distortions to the specific sound of a particular analog equalizer caused by the respective electronics has to be considered. If the distortions are ‘good’, they may make certain applications sound better.

So spend your $ on the tools that actually make a difference.

Here is an EQ example.

Everyone likes null tests right =)

So I took two supposedly “drastically different classed” Digital parametric EQ’s.
The external DSP hosted SSL Duende X-EQ, & compared it with Sonars native Sonitus EQ. You can get them to null.

The test signal was pink noise, tone & a drum mix.  FYI – Noise is far from lacking dynamics. It’s actually extremely dynamic. The full bandwidth signal gives the impression of a common static level. Use a bandpass & you will see how chaotically dynamic it is. Pink noise will stress any test much harder then a typical mastered music track. & yes it nulls with music as well.

This was the X-eq setup.

This is the Sonar EQ with the setting I tweaked to null.

To get the settings I panned the channels hard L&R and matched the frequency response. You can see the 2 overlapping lines. Blue = X-eq, Orange = Sonar. You can see single orange pixels if you look close.

This is a bunch of stereo image meters that show the lack of phase differences. I mean LACK of differences.

This is what happens if you bypass one of the EQ’s for comparison.

So whats this mean?

As I said I’ve found emulation plugins for the most part to be hype. But you might find the interface more creative, Or you might like the type of saturation the plugin uses in it’s design, Most don’t have a saturation stage.

All in all your better better off using a fully variable EQ & a saturater tool/plug-in.

But all is not lost if you have invested in a “vintage” plug-in bundle. Most plug-in bundles included compressors. Unlike EQ’s compressors come in many shapes and forms. & tools like the URS CSP with it’s input stage really can change a compressors quality/reaction.

In the end the quality variables are down to internal resolution, oversampling capabilities, & so on. There is no magic in the emulation.

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Other comparisons.


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air

I decided to take it a step further.
How close could I match the waves SSL with analog on.
So instead of using sonar & my usual URS saturation I decided to try it with all native Ableton Live plugins. At 1st I was having a hell of a time trying to match the EQ Phase. That is until I turned off Live’s Hi quality EQ mode.
Live oversamples with Hi quality on.

Here are the EQ setups.

Frequency Response with saturation.

The left measures frequency differences & the right is phase. Not bad, it’s near mono. Pretty cool for completely different tools.

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