Sigviewer and Signalserver – Open Source Software Projects for Biosignal Analysis

Abstract

We have developed two open source biosignal processing applications used at both ends of the signal processing chain, namely the signal acquisition server SignalServer and the signal visualization and analysis application SigViewer. Both programs are cross-platform (that is, they run under Windows, Mac OS X, and Linux operating systems), free open source software, and licensed under the GNU General Public License (GPL). SignalServer records raw data from various data acquisition devices and sends the data over the network in a standardized format. SigViewer reads many different biosignal formats and visualizes the contained multi-channel time series data. In addition, SigViewer supports annotations via custom event markers.