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IEM Plug-in Suite
IEM Plug-in Suite
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IEM PLUG-IN SUITE

The IEM Plug-in Suite is a free and Open-Source audio plugin suite including
Ambisonic plug-ins up to 7th order created by staff and students of the
Institute of Electronic Music and Acoustics.

Download Release Page Source Code

Latest Version v1.14.1, 14th February 2023

NOTE: BREAKING CHANGES!

Version v1.3.0 has introduced some breaking changes! Projects using one of the
previous versions might not work as expected.
For more information see the Breaking changes article and/or the ChangeLog.


FEATURED PLUG-INS

 * GranularEncoder
 * MultiBandCompressor
 * StereoEncoder
 * RoomEncoder
 * AllRADecoder
 * EnergyVisualizer

GRANULARENCODER

The GranularEncoder is an Ambisonic granular synthesis plug-in. That's right, it
is the first Ambisonic synthesizer plug-in released in the suite! The best thing
about it: you can use any mono or stereo audio signal, and turn it into an
enveloping sound scene, or crush the signal into microscopic sonic particles!

MULTIBANDCOMPRESSOR

The MultiBandCompressor is a very handy tool in your project's mastering stage!
It works like a stereo multi-band compressor, however, it will make sure the
spatial image is not altered! The Ambisonic input signal is split up into four
bands, which can be compressed individually.

STEREOENCODER

Use the StereoEncoder plug-in to encode mono or stereo audio signals into the
Ambisonic domain - up to 7th order. The interface lets you easily set the
orientation, width and rotation of the stereo pair. With a simple double-click
onto the SpherePanner you can change the display to a linear elevation, which
gives you a higher accuracy towards the horizon.

With help of the Quaternion input, you can use use data from orientation
trackers (e.g. headtrackers) to steer your source into the right direction.

ROOMENCODER

The RoomEncoder is so far the most complex and computation-intensive plug-in
within the IEM plug-in suite. It allows you to put a source and a listener into
a virtual shoebox-shaped room and render over 200 wall reflections. Perfect to
enhance the externalization of binaural playback.

You can move the source and the listener freely within the room, which will
automatically generate Doppler-shift effects. Use the overall reflection
coefficient and the low-shelve and high-shelve filters to change the character
of the reflections.

But thats not all: The RoomEncoder can make use of DirectivitySignals as an
input signal. This means that your source can have a frequency-dependent and
time-variable directivity. The DirectivityShaper plugin is a good tool to create
various directivities.

ALLRADECODER

With the AllRADecoder you can design an Ambisonic decoder for an any desired
loudspeaker layout using the AllRAD approach.

The resulting decoder is automatically applied to the incoming Ambisonic audio
stream, so it can be directly inserted into a decoder track of your audio
project. You might also want to use it as a standalone application to design a
decoder and write it into a JSON configuration file for the use in other
plug-ins (e.g. SimpleDecoder).

ENERGYVISUALIZER

This plug-in is perfect for metering the spatial image. The EnergyVisualizer
visualizes the energy distribution on the sphere of the Ambisonic input signal.
The energy levels are color-coded according to the color map. The Ambisonic
Signal is decoded using 480 virtual loudspeakers with a subsequent RMS
calculation and OpenGL visualization.


ONE PLUG-IN - SEVEN ORDERS

Support for up to 7th order Ambisonics, selectable within each plug-in.


OPEN-SOURCE

Free to use, free to change. Contribute!


CROSS-PLATFORM

Compiled Plug-ins available for macOS, Windows and Linux.

MADE WITH JUCE

Created with the JUCE framework.

CREATED BY STAFF AND STUDENTS

The plug-ins result from the institute's current research and student projects.

LICENSE

The IEM Plug-in Suite is licensed under the GPLv3 License.

 * Plug-in Suite by IEM - Institute of Electronic Music and Acoustics
 * IEM.at
 * Docs

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