OttoPhormant

OttoPhormant free filter by Music Unfolding

OttoPhormant is a free filter Audio Unit plugin developed by Music Unfolding. Compatible OS(s): macOS.

OttoPhormant is a wah effect based on morphing formant filters. It can be controlled using touch-triggered sweeps or envelope tracking. The filters can also be controlled using MIDI expression control.

There are 10 formant or vowel types available. The effect works by selecting three vowel sounds – start, middle and end – and morphing from one vowel to the next. There are 10 possible vowels that can be used in each of the three locations.

The formants are created by three filters. The filters can be either bandpass or a combination of two bandpass and one lowpass. The bandpass settings are similar to a traditional wah pedal. The filters are a special combination of Music Unfolding’s multi-stage driven filter. You can choose from 1, 2, 3, and 4 stage filters. You also have control of the resonance and drive for the filters. There’s a lot of control for setting up just how you want this effect to talk to you.

http://www.musicunfolding.com/

OttoPhilter

OttoPhilter free filter by Music Unfolding

OttoPhilter is a free filter Audio Unit plugin developed by Music Unfolding. Compatible OS(s): macOS.

OttoPhilter is an auto/touch wah filter with LFO control and sub-octave generation and a second auto/touch wah filter on the sub-octave. There’s a level meter tied to the touch wah sensitivity to help you adjust OttoPhilter to suit your playing dynamics. OttoPhilter has two driven resonant filter sections – one on the input signal and one for the generated sub-octave. The filters sweep by using triggered envelopes or tracking the input signal or using LFOs.

http://www.musicunfolding.com/

Noisebud Filter

Noisebud Filter free filter by Noisebud

Noisebud Filter is a free filter VST plugin developed by Noisebud. Compatible OS(s): Windows.

Noisebud Filter consists of 4 filters (or 16, depending on how you look upon it), they are switchable between Lo pass, hi pass, band pass and band reject filter.

The signals from the four filters are wired in a parallel chain. Every filter can be controlled by three different LFOs where one is tempo-synced; one normal and one extremely slow (a sLoFO).

The LFO sections also have something Noisebud call VariFO. It adds another movement to the LFO and makes it less predictable.

Every filter has an invert button so that you can silence frequencies that collide during heavy LFO movements, this and the VariFO is probably what make Noisebud filter special.

Made with SynthEdit

http://www.noisebud.se

Naive LPF

Naive LPF free filter by Admiral Quality

Naive LPF is a free filter VST plugin developed by Admiral Quality. Compatible OS(s): Windows.

Naive LPF is a resonant low-pass filter with envelope follower. It has been developed to closely model the way some real world analog circuits work, as opposed to some other techniques which, while well adapted to the math processing power of a computer, just don’t seem to render the same organic feel. Not to say that those techniques aren’t just as valid, but Admiral Quality was aiming for a vintage, analog feel with Naive LPF.

NOTE: Its creation is primarily as a test-bed for a full soft-synth Admiral Quality have planned.

Features:

  • Cutoff Frequency: Continually variable, from far above the sample rate of your host down to 0 Hz.
  • 4 Stages: Selecting the number of Stages adjusts the cutoff slope of the filter. More stages make a steeper slope.
  • Resonance: Enhances frequencies near the cutoff by feeding the inverted output signal back into the input. The resonance can be set high enough that this filter will enter self-oscillation and produce very loud signals, even without any input signal present.
  • Envelope Follower: Vary the cutoff frequency in response to the dynamics of the input signal, creating “auto-wah” type effects. With Attack and Release controls.
  • HPF Mode: Subtracts the low-pass filter’s output from the original input, providing a high-pass filter effect.
  • Output Saturation: Reduce excessive peaks back below 0 dB.
  • 6 input / 6 output channels. Each channel has its own independent filter with envelope follower.

http://www.admiralquality.com/

NA Analog Rack Cleaner

NA Analog Rack Cleaner free filter by Nembrini Audio

NA Analog Rack Cleaner is a free filter VST, VST3, Audio Unit, AAX plugin developed by Nembrini Audio. Compatible OS(s): Windows 64b, macOS.

The Analog Rack Cleaner plugin is high pass and low pass filters in a single rack Fx plugin to clear up low-end rumble and high frequency noise.

Nembrini Audio has taken the guitarists most preferred analog and digital effect pedals and has repacked it in new rack style plugins easy to use and extremely powerful at the same time, with the addition of a custom design tube preamp virtual circuit which gives color to the signal in a very special way.

Just insert the Analog Rack Cleaner plugin in your tracks to hear its beautiful analog tube coloration.

SoundCloud.com/nembriniaudio/sets/analog-rack

https://www.nembriniaudio.com/

MYFX AFM

MYFX AFM free filter | lfo by Odo Synths

MYFX AFM is a free filter and lfo VST plugin developed by Odo Synths. Compatible OS(s): Windows.

MYFX AFM is an FM (Frequency Modulation) and AM (Amplitude Modulation) effect plugin with 2 filters (switchable LP/HP/BP) and a “crosser”.

Made with SynthEdit

https://theodosynthsarchive.wordpress.com/

mWarped Linear Prediction Filter

mWarped Linear Prediction Filter free filter by Mutagene

mWarped Linear Prediction Filter is a free filter VST, DirectX plugin developed by Mutagene. Compatible OS(s): Windows.

The Warped LPC filter plugin simulates the structure of a warped linear-predictive codec implemented with warped lattice filters.

Linear prediction coding ‘whitens’ a signal by performing a spectral analysis and filtering out peak components. The output can then be used as the input to a similar reconstruction filter that adds the spectral peaks removed in the first step.

Warping the frequency scale of the predictor allows for the frequency scale to match the human auditory system. Individual adjustment of the warping parameter at each stage allows the user to create interesting effects by filtering using a frequency-dependent adaptive filter, and filter coefficients can be rotated to create bizarre phasing effects.

http://dsp.mutagene.net/

Mutine

Mutine free filter by Mokafix Audio

Mutine is a free filter VST plugin developed by Mokafix Audio. Compatible OS(s): Windows.

Mutine is an emulation of the Mutator effect. It has two envelope followers and two LFOs that trigger volume or cutoff. The envelope followers can be set to follow left channel, right channel or both. The effect can also be set to apply on left, right or both channels.

There are 2 versions: one with a vintage GUI, one with a more user friendly GUI.

Made with SynthEdit

http://www.mokafix.com/

Murmur

Murmur free filter by Tiny God

Murmur is a free filter VST plugin developed by Tiny God. Compatible OS(s): Windows.

Murmur allows up to 8-step sequencing of two independent, parallel multimode filters. At each sequence step, both the cutoff frequency and resonance value of each filter can be set. The sequencer automatically synchronizes to the tempo of the VST host.

The Steps and Size controls effectively set the time signature of the cycle: Div of “4th” and Steps of 3 are 3/4 time, etc. A bank of indicator lights shows the current sequence step.

Features:

  • 2 variable-cutoff resonant filters offering 12dB/octave lowpass, highpass, bandpass, and notch modes as well as a 24dB/octave lowpass mode.
  • Syncs to host tempo, sequencing up to 8 steps of durations from 64th note to double whole note.
  • Full control of filter frequency and resonance for each filter and sequence step.
  • Compact and straightforward custom GUI.

http://www.tinygod.com/

Multi Delay

Multi Delay free delay | echo | filter by Arne Scheffler

Multi Delay is a free delay and echo and filter VST, Audio Unit plugin developed by Arne Scheffler. Compatible OS(s): Windows 64b, macOS.

Multi Delay is a Multi Channel Filter Delay Plugin.

Features:

  • Up to 10 individual Channels with a Delay and a Filter.
  • Notch, Lowpass, Highpass and Bandpass Filter.
  • Every parameter can be modulated by a LFO or by steps (in sync with the host app).
  • Works on mono, stereo or multi-channel (VST only) tracks.
  • Altivec optimized.

http://arne-scheffler.de