Free Stereo Imaging Plugins

B-Decoder – Ambisonic Decoder

B-Decoder – Ambisonic Decoder is a free stereo imaging VST, Audio Unit plugin developed by Digenis. Compatible OS(s): Windows, macOS.

B-Decoder – Ambisonic Decoder is a 3rd order Ambisonic decoder.

Speaker Distance-Amplitude Compensation
The ability to specify the individual speaker distance from the center of the listening area, allows decoding for speaker array configurations where the speakers are not equally distanced from the center of the listening area. With the currently available decoder plug-ins, if a speaker is moved away from the speaker array perimeter, the user must adjust the volume slider of the moved speaker to compensate for the volume change caused by the distance moved.

The plug-in allows the user to set the speaker’s distance from the center only, and the volume is automatically adjusted by the plug-in. If the volume of a speaker reaches the maximum, and its distance setting is further increased, the volume will not be increased. Instead the volume for all the other channels will be decreased accordingly. This prevents amplifiers and speakers from distorting, while maintaining an accurately volume balanced speaker array.

The distance sliders have a range of 0 to 10 meters with the default being 5. While the distance sliders affect the volume sliders, the volumes sliders do not affect the distance sliders.

Fully Adjustable Order-Balance Per Speaker
One way of implementing per-speaker order control, would be to add a slider for every speaker, with a range of zero to three. The slider would only be able to select values 0, 1, 2, or 3. If the user selected 2 for 2nd order then the variables for the third order processing of that channel would be set to zero. As a result processing would only include the channels of the zero, first, and second order of spherical harmonics.

However a second approach, and the one which was implemented is to add four sliders for all individual speakers, that control the order balance of each speaker. The sliders control the percentage of the zeroth, first, second, and third base. The user can now control the orders on a per speaker basis.

Features:

Fully adjustable per-speaker azimuth, elevation, distance, amplitude, order balance.

Global distance, amplitude, and order weighting.

0th, 1st, 2nd, and 3rd order.

14 preset speaker array configurations.

Up to 16 speakers.

Speaker distance-amplitude compensation.

64 bit processing.

http://www.digenis.co.uk/

B-Mic – Ambisonic-Stereo Virtual Microphone

B-Mic – Ambisonic-Stereo Virtual Microphone is a free stereo imaging Audio Unit plugin developed by Digenis. Compatible OS(s): macOS.

B-Mic – Ambisonic-Stereo Virtual Microphone allows you to position and direct a microphone pair inside an Ambisonic sound field.

Features:

1st order.

Adjust the microphone pairs’ position within the soundfield.

Adjust the angle between the microphone pair.

Control over microphones’ polar pattern.

64 bit processing.

http://www.digenis.co.uk/

Autospread Box

Autospread Box is a free stereo imaging VST plugin developed by Synthescience. Compatible OS(s): Windows.

The Autospread Box is a Stereo Imaging processor which works by means off applying a small amount of delay into one of the audio channels, inverts it, and then adds some modulation to achieve its characteristic sound.

However it is relevant to state that this effect is only intended for stereo use and will work best on audio material with no relative difference between the left and right channels (for example any unprocessed sound where the sound in the left channel is exactly the same as in the right channel as in a dual mono signal). If you feed it with any kind of processed sound where the left channel sound content is different from that on the right channel, the resulting sound may be so subtle that could lead the user to think that its not there at all, but if one happens to turn the effect on and off, the difference will be noted.

Keep in mind that this is an effects processor that works on the subtle side of things but nevertheless it can impart some real vibes to your sound, as so experimentation is a must.

The Autospread Box is fully automatable and has the ability to store 32 presets. It ships with a few already pre programmed ones that will show what its all about and may be the starting point to your individual creations.

Installation procedure: Unzip the file, then copy the DLLs into your VstPlugins folder.

AutoSpectre 248

AutoSpectre 248 is a free stereo imaging VST plugin developed by Acousmodules. Compatible OS(s): Windows.

Description:

Division of the two audio inputs by six crossover filters.

Spatial position of the eight resulting filter bands inside an octophonic space.

Independent levels control.

Can be used in 5.0, 6.0, 7.0 and 8.0 mode.

http://acousmodules.free.fr/

AutoSpectre 246

AutoSpectre 246 is a free stereo imaging VST plugin developed by Acousmodules. Compatible OS(s): Windows.

Description:

Transformation of a stereo signal into 5.1 surround format.

Division of the two audio inputs by three crossover filters, plus a low pass.

Routing of the eight resulting filter bands on six outputs.

Independent levels and mix control.

http://acousmodules.free.fr/

Autopan Modulator

Autopan Modulator is a free panner VST plugin developed by Synthescience. Compatible OS(s): Windows.

The Autopan Modulator is an effects processor designed to work around the stereo field of any given audio source. It can be programmed to make your tracks bounce from side to side of the audio field with several modulation options at your choice. If anyway you want to keep it simple, it will allow you to do so manually.

The Autopan Modulator is fully automatable and has the ability to store 32 presets. It ships with a few already pre programmed ones that will show what its all about and may be the starting point to your individual creations.

Installation procedure: Unzip the file, then copy the DLLs into your VstPlugins folder.

++matrix

#ERROR!

++matrix is a mid-side to left-right encoder and decoder. For mid-side microphone arrays, but also useful when needing to apply effects to only the center or the sides of a stereo mix.

http://www.soundhack.com/

aMS-Tools

aMS-Tools is a free stereo imaging VST plugin developed by AAY-Audio. Compatible OS(s): Windows.

aMS-Tools is a set of three “Mid-Side” tools in the VST plug-in format. Using these tools you can encode Left-Right stereo channels to Mid-Side, decode Mid-Side to Left-Right and adjust Mid-Side balance.

aMS-Tools includes:

aMS-Tools Encoder

aMS-Tools Decoder

aMS-Tools Balancer

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

Ambisonic 3rd Order Decoder

Ambisonic 3rd Order Decoder is a free stereo imaging VST plugin developed by Digenis. Compatible OS(s): Windows, macOS.

Ambisonic 3rd Order Decoder is a VST Plug-in with speaker distance-amplitude compensation, and fully adjustable per-speaker order balance.

The decoder plug-in offers controls for the azimuth, elevation, and volume of sixteen individual speakers. In addition, it offers controls for balancing spherical harmonics orders to be used.

http://www.digenis.co.uk/

ambio.one

ambio.one is a free stereo imaging VST plugin developed by Weldroid. Compatible OS(s): Windows.

ambio.one is a highly customizable crosstalk-cancellation plug-in based on the RACE algorithm developed by the Ambiophonic Institute.

Ambio.one can process regular 2-channel stereo material to be presented on closely spaced speaker pairs. Such setup, even with only two speakers, can produce approximately 170 degree wide soundstage with considerably better imaging and sound localization than conventional stereophonics. A four-speaker setup (two closely spaced speakers at front and back positions) provides a full 360 degree soundfield in the horizontal plane.

Ambio.one can be used for mixing and mastering applications, as well as for high fidelity reproduction of music.

http://www.weldroid.net/