BrainVision Data Format

Overview

The BrainVision Core Data Format is the native file format of Brain Products GmbH EEG hardware and software, and one of the formats accepted by BIDS for EEG data. It uses a three-file structure: a plain-text header file (.vhdr) storing channel names, sampling rate, and recording parameters; a plain-text marker file (.vmrk) storing event markers with timing and description; and a binary data file (.eeg) storing the raw sample data. The specification is openly published by Brain Products, making the metadata files human-readable without specialist tools.

Connections

• Accepted by: BIDS (EEG format)
• Event annotation: HED (HED tags applied to .vmrk events in BIDS)

Resources

• https://www.brainproducts.com/support-resources/brainvision-core-data-format-1-0/ (Core Data Format specification)