The SPL De-Esser plugins also contain features not found on the original hardware, such as an M/S Stereo mode that allows you to de-ess a full mix and without losing the high frequencies of cymbals, guitars or keyboards. This makes the SPL De-Esser a valuable tool during mastering. Tonmann DeEsser is a basic high frequency dynamic processor VST plugin, called a DeEsser because it’s mainly designed to get rid of “stinging” sibilants that may occur on vocals after compression or adding a high boost. It may be used with any host software that can load and use VST2.4/32bit-compatible plugins.

You have just recorded vocals, you did not forget the anti-pop filter BUT
some harsh sounds still remain. sss
How to get rid of those annoying sibilances, harsh sound on “s” “ss” “sh” “ch” “z” ?

=> You can edit by hand if you have time, but it can be very tedioussss !

Or you can use a DE-ESSER, for automatically remove those annoying “s” in your vocal.
We have selected 3 FREE VST plugins you can use in Wavosaur or any audio editor or sequencer, that does the job ! let’s go :

1. Spitfish

download for free ! => http://www.digitalfishphones.com/main.php?item=2&subItem=5

The gool old VST by DigitalFishPhones, it’s dead simple, and nothing prevents you from using two Spitfish in serie. It removes efficiently the “sss” sound.

2. Lisp

Sleepy Time List VST

Information and download : http://sleepytimedsp.com/software/lisp/

This one comes with VST2 and VST3 version, as well as a 64 bit version!
Like spitfish, it has a stereo mode, and you can adjust the frequency for detecting the sibilant parts.
There are not so much freeware de-esser, this one is nice!

3. Tonmann de-esser

Direct download => http://www.tonmann.com/temp/Tonmann_DeEsser11.rar

This one has been made with synthedit surely. We didn’t give so much test but it seems to do the job! It has a clean and simple interface.

The Antress Modern Plugins consists of several free VST effect plug-ins for Windows:

Modern Compressor.
* Power On/Off button.
* Gate On/Off button.
* Gain Reduction meter include.
* Post-gate control (-96 to -30 dB).
* Gate time control.
* Threshold control (0 to 48 dB).
* Attack time control (1 ms to 50 ms).
* Release time control (60, 125, 250, 500ms, 1, 2, 4sec).
* Ratio switch (1.5:1, 2:1, 4:1, 8:1, 16:1, 32:1 and Tank mode).
* Side-Chain filter control (Highpass, off to 300 Hz).
* Mix control (0 to 100 %).
* Gain control (0 to 30 dB).

Modern Equalizer.
* EQ In/Out button.
* Phase flip In/Out button.
* High-pass filter control (off, 60, 120, 180, 240, 300, 360 Hz).
* Low-freq control (60, 80, 100, 150, 200 Hz).
* Low gain control (-18 to +18 dB).
* Low Peak/Shelf modes button.
* Med-freq control (500, 1200, 1800, 2400, 3200 Hz).
* Med gain control (-18 to +18 dB).
* Med bandwidth control.
* High-freq control (3000, 6000, 9000, 12000, 16000 Hz).
* High gain control (-18 to +18 dB).
* High Peak/Shelf modes button.
* Mix-Ratio control.
* Output control (-18 to +18 dB).

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Modern Expander.
* VU meter include.
* Threshold control (-96 dB to 0 dB).
* Ratio control (1:1 to 30:1).
* Knee control (0 to 20 dB).
* Range control (0 to 60 dB).
* Attack time control (0.1 to 3 ms).
* Release time control (150 to 3000 ms).
* Mix control (Full wet to dry).
* Output control (-20 to +20 dB).

Modern Exciter.
* Power On/Off button.
* Stereo level meters include.
* Extreme Low, High controls.
* Balance control.
* Output control (-18 to +18 dB).

Modern De-Esser.
* Power On/Off button.
* Gain Reduction meter include.
* Threshold, Ratio, Width, Release controls.
* Freq control (3000 to 9999 Hz).
* Output level control (-15 to +15 dB).

Modern Limiter.
* Power On/Off button.
* Gain Reduction light include.
* Link/Split modes switch.
* Input control (0 to 20 dB).
* Release control (30 to 2000 ms).
* Limit range control (0 to 96 dB).
* Output control (0 to -20 dB).

Modern Spacer.
* Power On/Off button.
* Stereo level meters include.
* Pre-Delay control (off to 2 secs).
* Time control (off to 10 secs).
* Room Depth control (15 to 3000 m).
* Room Width control (20 to 300 m).
* Mix control (Full wet to dry).
* LS, MF, HF, HS controls for Reverb EQ.
* Output control (-18 to +18 dB).

Modelling Edition
* collection from classic outboard processors.

Modern Apophis.
* Classic SSL® G384 Compressor clone.
* Power On/Off switch.
* Gain Reduction meter include.
* Thresh control (Threshold, +15 to -30 dB).
* Makeup control (Gain, -5 to +15 dB).
* Ratio selector (1:1, 2:1, 4:1, 6:1, 10:1, 20:1).
* Attack time selector (0.1, 0.3, 1, 3, 10, 30 ms).
* Recovery time selector (0.1, 0.3, 0.6, 0.9, 1.2 secs and Auto).
* Side-Chain highpass filter selector(Off, 20, 40, 80, 160 Hz).
* Mid/Side stereo image control.
* Mix control (Full wet to dry).
SSL® is a registered trademark of Solid State Logic, Inc.

Modern Lost Angel.
* Classic LA-2A® Compressor clone.
* Power On/Off switch.
* Gain Reduction meter include.
* Peak control (Threshold, 0 to -48 dB).
* Gain control (0 to 48 dB).
* Attack time (Variable, 0.1 to 10 ms).
* Release time (Variable, 0.05 to 3 secs).
* Comp/Limit modes switch.
LA-2A® is a registered trademark of Universal Audio, Inc.

Modern Seventh Sign.
* Classic 1176LN® Compressor clone.
* Power On/Off switch.
* GR/VU meter mode switch.
* Input control (Relative threshold).
* Threshold level (0 to -40 dB).
* Ratio switch (4:1, 8:1, 12:1, 20:1 and Crush).
* Attack time control (0.03 ms to 10 ms).
* Release time control (50 ms to 2 secs).
* Output control (0 to 40 dB).
1176LN® is a registered trademark of Universal Audio, Inc.

Modern Fire Chainer.
* Classic Fairchild® 660 Compressor clone.
* Power On/Off button.
* Input Gain control (1 dB steps, 0 to 20 dB).
* Threshold control (Variable, 0 to 30 dB).
* Time constant selector.
* Attack time (0.2, 0.2, 0.4, 0.8, 0.4, 0.2 ms).
* Release time (0.3, 0.8, 2, 5 secs, auto 1, auto 2).
* Ratio (Variable, 1:1 to 20:1).
* DC Adjust control (comp to limit).
* Metering switch (VU, GR, Off).
* Output Gain control (0.5 dB steps, 0 to 20 dB).
Fairchild® is a registered trademark of Avid Technology, Inc.

Modern Black Dragon.
* Classic Pultec® EQP-1A Program Equalizer clone.
* EQ In/Out button.
* 16 KHz cut In/Out button.
* Low shelf freq selector (20, 30, 60, 100 CPS).
* Low shelf boost control (0 to +16 dB).
* Low shelf attenuate control (0 to -20 dB).
* High peak freq selector (3, 4, 5, 8, 10, 12, 16 KCS).
* High peak boost control (0 to +20 dB).
* High peak bandwidth control.
* High shelf attenuate control (0 to -18 dB).
* High shelf freq selector (5, 10, 20 KCS).
* Trim level control (-15 to +15 dB).
Pultec® is a registered trademark of Pulse Techniques, Inc.

Modern Deathcore.
* Classic Distressor® EL-8 Compressor clone.
* Power On/Off button.
* Gain Reduction meter include.
* Input level meter include (-12 dB detect).
* Input control (Relative threshold).
* Threshold level (0 to -36 dB).
* Ratio switch (1, 2, 3, 4, 6, 10, 20:1 and Deathcore).
* Side-Chain Filter modes switch (HP, LP, BP).
* Pre-Coloring modes switch (HP, DS, HPDS).
* Attack time control (0.03 ms to 10 ms).
* Release time control (35 ms to 3 secs).
* Output control (0 to 36 dB).
Distressor® is a registered trademark of Empirical Labs, Inc.

De Essers For Mac

Special Edition
* special signal processor for mixing and coloring.

Modern Premier.
* Mic preamp simulator.
* Signal In/Off button.
* Monitor On/Off button.
* VU meter include.
* Input control (-18 to +18 dB).
* Level control (Mix 0% to 200%).
* Transparent control.
* Filter control.
* Five preamp model selector.
* Harmonic control.

Modern Amplifier.
* Power On/Off switch.
* Gain Reduction meter include.
* Hidden OLED level meters include.
* Gain control (0 to 50 dB).
* Peak Reduction control (0 to -50 dB).
* Fast/Slow modes switch.
* Compress/Limit modes switch.

Modern Deep Purple.
* Signal In/Off switch.
* LCD display include.
* High-pass filter control (20 to 200 Hz).
* Low-pass filter control (22 to 12 KHz).
* 3 Band Program EQ (LF, MF, HF).
* Gain, Freq, Q controls.
* Trim level control (-18 to +18 dB).

De Essers For Mac

Modern Vacuumer.
* Racing style Gain Reduction meter.
* Neon style level light.
* Easy/Over compression lights.
* Gain control (Semi-Auto, 0 to 30 dB).
* Threx control (Threshold, 0 to -60 dB).
* Atta control (Attack time, 1.2 to 12 ms).
* Releax control (Release time, 240 to 2400 ms).
* Hape control (Ratio, 3:1 to 30:1).

Modern Console EQ.
* EQ In/Out button.
* Phase flip In/Out button.
* Highpass filter control (20 to 300 Hz).
* Lowpass filter control (20 to 10 Khz).
* 4 Band Parametric EQ (LF, LMF, HMF, HF).
* Gain, Freq controls.
* LMF High-Q In/Out button.
* LMF High-Q In/Out button.
* HF Peak mode In/Out button.

Modern Splitter.
* Solo mode switch.
* Left channel solo.
* Right channel solo.
* Mid channel solo.
* Side channel solo.
* L/R Centered switch.
* Output level control (1% step, 0% to 200%).

Modern Monoizer.
* Power On/Off button.
* Mid gain control (0 to +12 dB).
* Side filter control.
* Highpass Filter (20 Hz to 20 KHz).
* Filter shape control.
* Side gain control (0 to +12 dB).

Modern Analoguer.
* Analog tape simulator.
* Power On/Off switch.
* Standard/Monitor modes switch.
* Hidden OLED level lights.
* Input control (0 to +18 dB).
* Output control (-18 to 0 dB).
* Color control.
* Level control.
* Filter control.
* Ceiling control(+6 to -6 dB).

Modern Flash Verb.
* Process On/Off button.
* Send mode On/Off button.
* Input control (-6 to +6 dB).
* Level control (Relative reverb time).
* Reverb time (off to 10 secs).
* Room control.
* Room size (box to infinity).
* Pre-Delay time(off to 2 secs).

Source : Antress