Free Audio Plugins & Softwares for macOS

Overtone GEQ

Overtone GEQ is a free equalizer VST, VST3, Audio Unit, AAX plugin developed by Voxengo. Compatible OS(s): Windows 64b, macOS.

Overtone GEQ was designed to be a quick EQ shape adjustment tool for mixes and sub-mixes. During its operation, Overtone GEQ applies harmonic enhancement processing that delivers a special touch and shine to the sound.

Features:

7-band graphic equalizing.

+/- 12 dB gain range per band.

2 graphic equalizer views.

Multi-channel processing.

Internal channel routing.

Channel grouping.

Mid/side processing.

Complex harmonic coloration.

64-bit floating point processing.

Preset manager.

Undo/redo history.

A/B comparisons.

Contextual hint messages.

https://www.voxengo.com/

Overflow

Overflow is a free overdrive and saturation Audio Unit plugin developed by Sound Consulting. Compatible OS(s): macOS.

Overflow is an AudioUnit which generates digital bit overflow distortion. Much like early ADC chips would react to excessive input levels by overflowing the available word length.

http://sounds.wa.com/

Overdrive

Overdrive is a free overdrive VST plugin developed by mda. Compatible OS(s): Windows, macOS.

mda Overdrive is a soft distortion plug-in.

http://www.mda-vst.com/

OU-80

OU-80 is a free rompler and drum machine VST, VST3, Audio Unit plugin developed by Reflekt Audio. Compatible OS(s): Windows 64b, macOS.

OU-80 is a free drum plug-in that comes packed with over 100 knocking drum sounds. Equipped with a simple but effective user interface, it wont be hard to find your next drum element.

OU-80 was inspired by some of the hottest producers and artists around such as NLE Choppa, Post Malone, Lil Pump, Drake, Wheezyx5, Cardo Got Wings, TM88, and the list goes on and on.

Sound Demo 1: SoundCloud.com/reflektaudio/ou-80-sound-demo-1-produced-by-daniel-price-aka-yuck

Sound Demo 2: SoundCloud.com/reflektaudio/ou-80-sound-demo-2

OU-80 Demo Video 1: Click Here

OU-80 Demo Video 2: Click Here

https://reflektaudio.com

OttoVibe

OttoVibe is a free multi fx and tremolo and vibrato and panner and chorus and lfo Audio Unit plugin developed by Music Unfolding. Compatible OS(s): macOS.

OttoVibe is an auto/touch effect with MIDI control. OttoVibe works much like an envelope-controlled filter, except that instead of a filter, it has a modulation section. The envelope controls the rate and depth of the modulation effect.

OttoVibe includes a variety of effects including tremolo, vibrato, panning, and chorus. Altogether, OttoVibe has eight different types of effects. The effects can be dynamically manipulated using “touch” or expression pedal controls, much the same way a touch wah works. Even though OttoVibe tends to be more subtle than its siblings (OttoPhormant and OttoPhilter), it is very expressive.

http://www.musicunfolding.com/

OttoPhormant

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 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/

OTT

OTT is a free compressor VST, Audio Unit plugin developed by Xfer Records. Compatible OS(s): Windows 64b, macOS.

OTT is a re-creation of a popular aggressive multiband upwards / downwards compressor setting used by many dubstep and electro producers.

Features:

Depth control to scale the amount of compression.

Time control to scale the attack/release times of all bands.

Input and Output gain controls.

visual display of input and gain reduction over the low/mid/high bands.

http://www.xferrecords.com/

OSL Chorus

OSL Chorus is a free chorus VST, Audio Unit plugin developed by Oblivion Sound Lab. Compatible OS(s): Windows 64b, macOS.

OSL Chorus is modelled after the Juno 60’s onboard chorus. It produces rich, wide choruses that are perfect for bringing dry synthesizers to life, but it sounds equally good on guitar, bass, and other instruments.

In its default configuration OSL Chorus emulates the original unit, but adjustable parameters let you dial in custom choruses that range from subtle to extreme.

http://oblivionsoundlab.com/

Oscilloscope

Oscilloscope is a free oscilloscope VST, Audio Unit plugin developed by SocaLabs. Compatible OS(s): Windows 64b, macOS.

Product Description:

Stereo Oscilloscope.

Negative or positive edge trigger.

Adjustable trigger level.

Y Offset per channel.

http://www.socalabs.com