AxiView (ActiveThree LSL Reader)

AxiView (ActiveThree LSL Reader)

BioSemi
Real-Time LSL Streaming and Visualisation Software for BioSemi ActiveThree EEG Systems.

AxiView is a high-performance, scientific-grade LSL (LabStreamingLayer) reader and visualization application designed specifically for BioSemi ActiveThree data acquisition systems. Developed by NEUROSPEC AG, AxiView enables real-time access to physiological data streams for online analysis, monitoring, and experimental control in modern neuroscience and biomedical research environments.

AxiView is intended as a lightweight yet powerful companion tool for researchers working with BioSemi ActiveThree systems who rely on the LabStreamingLayer (LSL) ecosystem. It bridges ActiveThree hardware with network-based analysis pipelines, enabling seamless integration with MATLAB, Python, and other LSL-compatible client environments.

The software is particularly suited for real-time electrophysiology use cases such as EEG, ERP, and ABR research, where deterministic data access and flexible signal visualization are critical.

AxiView is a scientifically robust, LSL-native reader and visualization tool tailored for BioSemi ActiveThree systems. By combining real-time streaming, signal processing, and flexible network-based operation, it provides researchers with an efficient and modern interface for online electrophysiological data analysis without imposing licensing barriers or commercial constraints.

Real-Time Streaming and Network Architecture

AxiView supports streaming directly from the ActiveThree ring buffer over TCP/IP, allowing continuous data transmission to local or remote clients. This architecture enables:

  • Online signal inspection during acquisition
  • Real-time analysis and feedback control
  • Distributed workflows with recording and visualization performed on network-connected computers

From ActiView version V104 onward, AxiView natively incorporates LSL streaming and should be used with all ActiveThree systems currently on the market.

Signal Processing and Visualization Capabilities

Despite its lightweight design, AxiView provides a comprehensive set of real-time processing and visualization tools commonly required in electrophysiological research:

  • Online averaging for event-related potentials (ERP) and auditory brainstem responses (ABR)
  • Real-time FFT analysis for spectral inspection of ongoing signals (in future development)
  • Flexible re-referencing, supporting multiple EEG and EXG montages
  • Channel-type aware visualization, including:
    • Bipolar channels (EXG)
    • Monopolar channels (EEG)
    • Auxiliary sensor inputs
    • Trigger lines

These capabilities make AxiView suitable both as a monitoring interface during data acquisition and as a real-time analytical front end in closed-loop or neurofeedback paradigms.

Cross-Platform Recording and Remote Operation

AxiView allows real-time capture and recording of ActiveThree data on a network-connected computer, supporting heterogeneous system setups across operating systems. This makes it possible to decouple acquisition hardware from processing and storage machines, a common requirement in complex laboratory or clinical installations.

Operating system compatibility:

  • Windows 10
  • Windows 11
  • macOS (specified versions, depending on release)

Licensing and Research Community Support

AxiView LSL Light is distributed free of charge as a complementary utility for the research community. While the application is fully functional, it is provided without source code and without formal technical support or long-term maintenance commitments.

NEUROSPEC AG offers AxiView as a contribution to users of BioSemi ActiveThree systems and to the broader LSL ecosystem. Software updates may be released periodically at NEUROSPEC’s discretion.

For users who find AxiView valuable in their research workflows, a voluntary “coffee for the developer” contribution option is available directly within the application interface, supporting continued development.

Read more
                                                                                                                                   
SpecificationDetails
Supported streaming protocolsLSL streaming, ActiView (V104+); TCP/IP ring-buffer streaming
Network operationSupports real-time capture/recording on a network-connected remote computer
Signal processingReal-time averaging (ERP, ABR); real-time FFT; re-referencing for different montages
Displayed channel typesBipolar (EXG), monopolar (EEG), auxiliary (sensors), trigger line channels
Hardware compatibilityBioSemi ActiveThree systems
Operating system supportWindows 10; Windows 11; macOS (version to be specified)
Licensing / availabilityProvided free of charge as a complementary utility for the research community
Source code availabilityAvailable upon request
Support / maintenanceNo formal technical support or maintenance obligations
Optional contributionVoluntary “coffee for the developer” contribution option available in-app

Important Note: This product is for research applications only. Not a medical device as defined in Regulation (EU) 2017/745 (EU MDR), Swiss Medical Devices Ordinance (MedDO, SR 812.213), or FDA 21 CFR Part 860. Not designed or intended to be used for diagnosis, treatment of disease or any other medical purposes.

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