Spectrum Viewer

Displays real-time power spectra for up to 8 continuous channels within the Open Ephys GUI. This plugin is derived from the Coherence & Spectrogram Viewer from the Translational NeuroEngineering Laboratory at the University of Minnesota.

Installation

The Spectrum Viewer plugin is not included by default in the Open Ephys GUI. To install, use ctrl-P to access the Plugin Installer, browse to the "Spectrum Viewer" plugin, and click the "Install" button.

Usage

Instructions for using the Spectrum Viewer plugin are available here.

Building from source

First, follow the instructions on this page to build the Open Ephys GUI.

Important: This plugin is intended for use with the latest version of the GUI (0.6.0 and higher). The GUI should be compiled from the main branch, rather than the former master branch.

This plugin depends on the main branch of the OpenEphysFFTW library, which must be built and installed first.

Be sure to the OpenEphysFFTW and spectrum-viewer repositories into a directory at the same level as the plugin-GUI, e.g.:

Code
├── plugin-GUI
│   ├── Build
│   ├── Source
│   └── ...
├── OEPlugins
│   └── spectrum-viewer
│   │   ├── Build
│   │   ├── Source
│   │   └── ...
│   └── OpenEphysFFTW
│       ├── Build
│       ├── Source
│       └── ...

Windows

Requirements: Visual Studio and CMake

From the Build directory, enter:

cmake -G "Visual Studio 17 2022" -A x64 ..

Next, launch Visual Studio and open the OE_PLUGIN_spectrum-viewer.sln file that was just created. Select the appropriate configuration (Debug/Release) and build the solution.

Selecting the INSTALL project and manually building it will copy the .dll and any other required files into the GUI's plugins directory. The next time you launch the GUI from Visual Studio, the Spectrum Viewer plugin should be available.

Linux

Requirements: CMake

From the Build directory, enter:

cmake -G "Unix Makefiles" ..
cd Debug
make -j
make install

This will build the plugin and copy the .so file into the GUI's plugins directory. The next time you launch the GUI compiled version of the GUI, the Spectrum Viewer plugin should be available.

macOS

Requirements: Xcode and CMake

From the Build directory, enter:

cmake -G "Xcode" ..

Next, launch Xcode and open the spectrum-viewer.xcodeproj file that now lives in the “Build” directory.

Running the ALL_BUILD scheme will compile the plugin; running the INSTALL scheme will install the .bundle file to /Users/<username>/Library/Application Support/open-ephys/plugins-api8. The Spectrum Viewer plugin should be available the next time you launch the GUI from Xcode.