Free Dynamic Processing Audio Plugins

BattleComp Vintage

BattleComp Vintage is a free compressor VST plugin developed by RobotPlanet.dk. Compatible OS(s): Windows, macOS.

BattleComp Vintage is a punchy yet smooth compressor with an EQ and a high-pass filter on its internal sidechain and tube emulation + soft-clipping circuit in the output stage to keep peaks under control, all in one VST plug-in. The high-pass filter on the enveloper follower makes it easy to avoid pumping effects when there’s a lot of bass – something many compressors struggle with.

This compressor is suitable for both master signal compression and per-instrument compression.

http://www.robotplanet.dk/

autoBED

autoBED is a free gate VST plugin developed by whiteLABEL. Compatible OS(s): Windows.

autoBED is a lookahead stereo ducker with virtual sidechain inputs.

Features:

4 inputs, 2 outputs:

Channels 1&2 duck in response to channels 3&4.

Channels 3&4 are mixed back into outputs 1&2.

10 response curves.

190 ways to fade from one level to another [and back].

Lookahead of up to 2 seconds with ‘just in time’ link mode.

6 levels of automatic presence control.

3 gender settings.

8 presets [also works as a gate].

Uses

Radio Production: The classic use for autoBED is when you have a music track and a presenter’s voice. Whenever the presenter is heard, the music fades into the background. As the music fades, its presence falls leaving focus for the presenter. When the presenter stops speaking, the music fades back in as its presence is restored.

Music Production: Control the presence of one group of instruments according to the level of another – for example when guitar, organ and vocal are all competing for space within a mix autoBED can reduce the presence of the guitar and organ whenever the vocalist sings, creating a little extra space for the vocal.

http://dazdisley.co.uk/whiteLABEL/

Auto Gate/Expander

Auto Gate/Expander is a free gate VST plugin developed by slim slow slider. Compatible OS(s): Windows.

Features:

Sampling Rate: 44.1k, 48k, 88.2k, 96k support.

32bit float internal precision.

Threshold (-60dB to 0dB): Set the threshold level of the gate.

Attack (0.05ms to 100ms): Set the attack time of the gate.

Hold (0ms to 1000ms): Set the hold time of the gate.

Release (ShortRel to 2000ms): Set the release time of the gate.

Expand Ratio (1:1 to 30:1): Set the ratio of the expander. If you want to use this as only gate effect, set “1:1”.

Range (-oodB to 0dB): Set the minimum level when the gate closes.

KeyListen (ON or OFF): Output the trigger signals.

LPF Cutoff Freq (20Hz to off): Set the cutoff frequency of a low pass filter for the trigger signals.

HPF Cutoff Freq (off to 20000Hz): Set the cutoff frequency of a high pass filter for the trigger signals.

http://www.geocities.jp/webmaster_of_sss/vst/

ATKTransientSplitter

ATKTransientSplitter is a free transient shaper VST, VST3, Audio Unit plugin developed by Matthieu Brucher. Compatible OS(s): Windows 64b, macOS.

ATKTransientSplitter is a mono transient splitter, cutting an input signal into its transient and sustain parts.

The plugin follows the implementation of the transient shaper with a twist explained on Audio Toolkit blog. The parameters are:

RMS is the size of the power windows.

Attack is the attack time constant for the slow attack/release filter.

Attack fraction (or ratio) is the percentage of the attack time constant that will be used for the fast attack/release filter. Used to work on the transient at the beginning of a sound.

Release is the release time constraint for the fast attack/release filter (as the release time has to be higher).

Release fraction (or ratio) is the percentage of the release time constant that will be used for the slow attack/release filter (as it has a faster release time constant). Used to work on the transient at the end of sound.

Threshold.

Slope is the ratio, 1 keeping the sustain at a constant RMS above the threshold, higher means that the sustain will be reduced by this factor (swell-like behavior).

Softness is an indicator of the harshness of the knee of the underlying swell.

http://www.audio-tk.com/

ATKTransientShaper

ATKTransientShaper is a free transient shaper VST, VST3, Audio Unit plugin developed by Matthieu Brucher. Compatible OS(s): Windows 64b, macOS.

ATKTransientShaper is a mono transient shaper with all the parameters usually hidden from the user.

The plugin follows the workflow exposed here with the following parameters:

RMS is the size of the power power windows.

Attack is the attack time constant for the slow attack/release filter.

Attack fraction (or ratio) is the percentage of the attack time constant that will be used for the fast attack/release filter.

Release is the release time constraint for the fast attack/release filter (as the release time has to be higher).

Release fraction (or ratio) is the percentage of the release time constant that will be used for the slow attack/release filter (as it has a faster release time constant). Usually set to 100%.

Threshold.

Slope is the ratio, 1 being the identity, higher than 1 compressing the transient, less than 1 swelling it.

Softness is an indicator of the harshness of the knee of the underlying compressor.

Color is an indicator of the color around the threshold: positive increases the gain around it, negative decreases it.

Quality is the amount of color.

Make-up is the gain after the effect.

Dry-wet gives the balance between the unprocessed signal and the processed signal.

http://www.audio-tk.com/

ATKStereoLimiter

ATKStereoLimiter is a free compressor VST, VST3, Audio Unit plugin developed by Matthieu Brucher. Compatible OS(s): Windows 64b, macOS.

ATKStereoLimiter is a stereo brickwall limiter.

http://www.audio-tk.com/

ATKSideChainExpander

ATKSideChainExpander is a free expander VST, VST3, Audio Unit plugin developed by Matthieu Brucher. Compatible OS(s): Windows 64b, macOS.

ATKSideChainExpander is a stereo expander with a side chain stereo input. It can work in left/right or middle/side mode.

http://www.audio-tk.com/

ATKLimiter

ATKLimiter is a free compressor VST, VST3, Audio Unit plugin developed by Matthieu Brucher. Compatible OS(s): Windows 64b, macOS.

ATK Limiter is a limiter based on the Audio Toolkit.

http://www.audio-tk.com/

ATKSideChainCompressor

ATKSideChainCompressor is a free compressor VST, VST3, Audio Unit plugin developed by Matthieu Brucher. Compatible OS(s): Windows 64b, macOS.

ATKSideChainCompressor is a stereo compressor with a side chain stereo input.

It can work in left/right or middle/side mode or in linked mode, allowing channels to be steered by a mix of power coming from each channel, each passing through its own attack-release filter. It enables more creative workflows with makeup gain specific to each channel.

The compressors have color section on top of the usual controls, with an optional Middle/Side processing as well as side-chain working either on each channel separately or in middle/side as well.

http://www.audio-tk.com/

ATKAutoSwell

ATKAutoSwell is a free compressor VST, VST3, Audio Unit plugin developed by Matthieu Brucher. Compatible OS(s): Windows 64b, macOS.

ATKAutoSwell works like a compressor, but instead of only acting on the signal above the threshold, it applies the gain transfer function to the full signal. So above the threshold, you can lower the output signal.

http://www.audio-tk.com/