Support Tip

Brain Products Press Release
July 2011, Volume 39
Support Tip
Did you know how to set up a Recorder workspace with the latest BrainVision Recorder?
by Dr. Davide Riccobon
Setting up a workspace allows you to define user-specific recording
and viewing parameters such as the location of the EEG files, the
amplifier settings (e.g. channel name and number, sampling rate,
digital port settings, etc.), software filters, segmentation and
average parameters, the selection of passive or active electrodes
using ControlBox, various view settings and so on. Some of these
parameters can be set using a wizard-driven procedure, while other
parameters can be adjusted in the Amplifier and Configuration
As we were developing the new BrainVision Recorder 1.20
program, we took particular care to improve the usability of our
recording software. This naturally also implied resolving the issues
mentioned above. The way that workspaces in BrainVision
Recorder 1.20 are handled is both more error-resistant and more
intuitive: all the values defined for a given workspace are saved
in the workspace and are loaded with it automatically. If you
have to switch between workspaces because you have different
experiments running in parallel, or if you want to import a
workspace from an existing computer to a new one, you can do it
without manually changing the recording parameters (and without
the risk of forgetting to do it!). Everything runs automatically.
There are only two points you need to pay particular attention to:
When you create a new workspace, after completing the wizarddriven procedure you must also check, and if necessary adjust,
the parameters set in the Amplifier and Configuration menus.
These parameters are automatically imported from the older
workspace, and might not match the requirements of the new
experimental design. If this is the case you will have to edit
them. The new values will be saved automatically.
In previous versions of Recorder, the parameters set using a
wizard were linked to the workspace. The other parameters were
independent of the workspace selected and were tied to the
computer being used. This had the following implications:
• Switching between different experimental settings required not
only switching workspaces, but could also involve the need for
repeated editing of the Amplifier and Configuration parameters.
This procedure was particular error-prone and could lead to entire
recording sessions being rendered invalid.
• The transfer of a particular workspace from one computer to
another could also involve having to completely reset the Amplifier
and Configuration parameters.
Workspaces created with an older version of the Recorder
program do not include the Amplifier and Configuration
parameters. When Recorder 1.20 opens one of these
workspaces it will therefore be unable to locate those
parameters. Instead, the Recorder program will automatically
load the parameters for the most recently opened workspace.
These might differ from the parameters you require. Accordingly,
when you open workspaces created with older versions of
Recorder you should always verify that the Amplifier and
Configuration parameters are set correctly.
(Please refer to the BrainVision Recorder manual for more detailed
explanations regarding the individual processing steps and the
significance of the various parameters:
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