Rec Splitter

This article shows how to split a recording containing pauses in multiples record files.

The RecSplitter application

Launch the RecSplitter application and select your rec file. You should obtain a graphical representation of your recording. In this representation, data are represented chronologically from left to right. Each blue line represents a data at a particular timestamp. So all grey spaces show where there are no data in the recording (see figure below).

Select the Threshold and click on "Set". The threshold corresponds to the maximum authorized time between two timestamps. As a consequence, if no data is recorded during a period corresponding to this threshold, the recording will be cut here.

When Set is clicked, you should obtain red bold dashes lines indicating where the cuts are.

If you agree with this, then click on the Go button. Note that you can select a different path for the destination path. The default folder is the same as the input folder, creating sub-folders for each part of the recording.

If you used a special RRM for your recording, you have to load the appropriate package (use the "Browse and add" buttons). Otherwise you will get an error.


This article shows how to regenerate a broken idx file thanks to the IdxRegenerator tool.

What is an idx file ?

The idx file is an index file working together with a record file (.rec). Actually, the idx is not mandatory since the player can read data with the record file alone. However, it will complain about a missing idx file.

So yes, the idx file is very useful. Because you are not always replaying data linearly from the beginning to the end. Indeed, when you play backwards or when you jump to a particular timestamp you will need a random access to the recording file. This is precisely the role of the idx file.

How does my idx file get corrupted ?

It happens when RTMaps closed brutally and so has not finished writing the idx file.

How to repair the idx file ?

This is very easy. Launch the IdxRegenerator application. Select the rec file containing the recording and click on Repair !

The will generate a new idx file in the same directory as your rec file.


Seek and destroy

This is an article dealing with multiple recording deletion, based on recording size.

Why using Seek and Destroy tool ?

When you set a trigger recording in a experimental set-up, you can have 50 recording at the end of the day, each one in a different folder so that you don't know which ones you should keep or delete.

The Seek and destroy tools scans for folder containing a .rec file and whose size is inferior to a certain threshold. So you can delete your useless records in one click.

How to use Seek and Destroy tool ?

Launch the Seek and Destroy tool and select the folder containing your recordings. The number of directories displayed takes into account only the directories containing a .rec file.

Then, select a threshold, and click on scan. Every folders containing a .rec file and having a total size inferior to the threshold will be displayed in the text edit (see figure below). Those directories are ready for deletion.

To finish, click on the "Delete !" button. Take care, folders will be deleted definitely, unless you specified explicitly you wanted a backup.