Editing a Detection File

DART XP Pro creates detection files which contain information about detection alarms (binary signals labeled 1 and 3) and allow for large-scale interventions (signals labeled 2 and 4).

The indicators placed at the right end of each detection window show the corresponding bit values at the current cursor position. The boxes situated on the left side of a detection window can be used to select binary signals for editing. The status of each box changes when you click on it – boxes, which are lit up, mark bits which will be active during editing.

Setting/clearing bits

To set or clear bits in an active binary window

1. Using the boxes situated on the left side of a detection window choose signals which will be active during editing.

2. Select the set or clear bits mode by pressing the F6 or F7 keys. Alternatively, choose the Set/Clear bits mode command accessible from the Bit editing group in the Edit menu.

3. Set/clear bits by means of holding down the left mouse button and dragging the mouse.

4. Restore the normal mode by pressing the F8 key or choose the Normal mode from the Bit editing group in the Edit menu.

Setting/clearing bits blockwise

To set, clear or invert bits in a selected block of an active binary window

1. Choose signals, which will be active during editing.

2. Select the block subject to modification.

3. Choose one of the three block editing commands (Set/Clear/Toggle bits in selected block) accessible from the Group bit editing group in the Edit menu.

Finding bit sequences

DART XP Pro allows you to browse through a detection file looking for sequences of set bits of a specified length. You can use this option to search for detection alarms covering a certain number of samples in a row.

To find the sequences of bits

1. Position the cursor at the beginning/end of the area you want to search.

2. Select the Find bits command from the Edit menu or press the CTRL+F keys.

3. Type in the minimum length of a sequence or use the up/down arrows to change the currently displayed value.

4. Press the FORWARD /BACKWARD button to initialize the search in the chosen direction. If the search is successful, the detection window becomes centered at the nearest sequence of a specified length. If no such sequence can be found in a given direction, an appropriate message appears on the screen.

5. When finished, press the Close button to close the Find bits dialog.

Once opened, the Find bits dialog can be used as many times as needed and can remain on the screen while editing sound and/or detection files.

NOTICE

By default, all binary signals displayed in an active binary window are searched when you choose the Find bits command. If you want to inspect a selected binary signal only, uncheck the Ignore bit settings in 'Find bits' box in the Preferences dialog accessible from the Options menu.