If multiple files are opened and you want to extract several signals from several files, it is likely that some channels have the same ID number. The channels therefore need to be renumbered, otherwise it is not possible to uniquely identify them in the exported media. ibaAnalyzer can perform this renumbering automatically, but issues an alert before extraction if this is necessary.

The channel IDs consist of a module number and a position within the module. ibaAnalyzer uses an internal algorithm to create the channel IDs. For this reason, the values are also not directly recognizable during renumbering in the database column.

The Renumbering tab allows the specification of an offset to the module numbers for each file, hence enabling the user to prevent ID collisions and avoid automatic renumbering.