Knowledge Base

How Detected Calls Are Sorted

In the Detected Calls List, calls are sorted first by the time interval chosen to visualize the signal, then by the call definition they originate from.

Example: The Time interval is 2 seconds. Within each 2-s interval, the calls obtained with the first call definition are listed first, then those obtained with the second call definition, etc. The orange rectangles below represent the time intervals.

To View Information on a Detected Call

1. Click within the rectangle around the call in the Spectrogram.
2. In the Detected Calls list, the row for the selected call is highlighted.

To View the Spectrogram of a Detected Call

1. Click a detected call in the Spectrogram or click a row in the Detected Calls list. The corresponding rectangle in the Spectrogram is highlighted. If the call is located in a time interval other than the current one, all plots are updated with the new interval.
2. A detailed spectrogram of that call appears at the bottom-right corner of the screen.
3. To view details of the call, move the mouse over the plot and check the values at the bottom: t (time), f (frequency) and a (amplitude).

TIP: To navigate through calls, you can also use the arrow keys or the Page Up/Page Down keys.

Definition

A pattern label is a label that you can assign to multiple calls in order to analyze them as a group.

A pattern label is often labeled according to the shape of the call spectrogram.

Procedure

1. Choose Analysis > Call Labeling, or click Call Labeling on the left pane.
2. Select one of the calls in the call list.
3. Observe the spectrogram of the call that is highlighted.
4. In the Labels list at the bottom-left corner of the screen, double-click the name of the pattern that you want to assign.
5. The pattern name appears in the corresponding cell.
6. The cursor moves automatically to the next call. You can now label the following calls. See Label Multiple Calls.

The Labels List

The Labels list shows the names of the call pattern labels currently available.

NOTE: The Labels list is used for all your experiments. You cannot create different lists for different experiments.

Add a New Pattern Label

1. Right-click within the Labels list, and select Add label.
2. A new row is appended to the list.
3. Enter the label you require, then press Enter.

Edit a Pattern Label

1. Select a pattern label in the Labels list, right-click and select Edit label.
2. The label name becomes editable. Make the necessary changes and press Enter.

Delete a Pattern Label

In the Labels list, right-click the label and select Delete label.

NOTE: When you delete a label, the labels of the same type assigned to calls are not deleted. If you want to delete those labels, see Remove Labels.

Enter a Pattern Label That Is Not in the Labels List

You can label one or more calls with a pattern name that is not (yet) included in the Patterns list.

1. In the Call Labeling screen, click the row of the call you are interested in.
2. Type in a new pattern name in the Label cell for that call.

The label is not included automatically in the Pattern labels list. You can also add a pattern label to the list. See Add a New Pattern Label.

Label Multiple Calls

Aim: To quickly label a number of vocalizations of a specific pattern.

Procedure

1. Open the Call Labeling screen and select one recording.
2. For each call that you want to label with a specific pattern label, click the cell in the first column, so that it is marked with a check symbol.
3. In the Labels list, double-click the label that you want to assign.
4. Click Yes on the message that appears.
5. Select the label you require and click OK.
6. The labels appear in the corresponding cells.

Replace a Pattern Label for Multiple Calls

Aim: To re-assign a pattern label to multiple calls. This is especially handy in two situations:

• When you want to assign the same pattern label to all unlabeled calls.
• When you want to replace a specific label with another one.

To Re-Assign a Pattern Label to Multiple Calls

1. Click the button next to the Pattern Label column header.
2. In the Multi Pattern Label Editing window, under Rename pattern label, click the first button and in the Select pattern label window select the pattern label that you want to replace. Leave this empty if you want to assign a label to unlabeled calls.
3. Click the second button and select the label you want to assign.
4. Click Apply.
5. The Pattern Label column is updated with the new pattern label. A message shows how many calls have been labeled.

Remove Labels

Aim: To remove the labels from the calls in your recordings.

Procedure (Single Call)

1. Double-click the Pattern Label cell so that its content is highlighted in blue.
2. Press Delete, or right-click the label name and select Delete.

Procedure (Multiple Calls)

To remove the labels of a specific type, do the following:

1. Right-click anywhere in the call list and select Select by label.
2. In the second menu, select the label you want to delete. NOTE: The second menu includes the labels that are scored in the current recording.
3. As a result, all the rows that include that label are selected with a check mark.
4. Right-click again somewhere in the call list and select Remove label of [n] selected calls. The number [n] indicates how many calls in that recording are labeled with the label chosen.
5. The labels are removed.

Select Multiple Calls for Editing

Aim: To select multiple calls for deletion or call labeling.

Prerequisites: Open the Call Labeling screen.

Procedure

• Simple manual selection: Click the check box next to each call that you want to select.
• Select by call name: Right-click anywhere in the call list and select Select by call name, then select one of the names available in the second menu.
• Select by label: Right-click anywhere in the call list and select Select by label, then select one of the labels available in the second menu.

Once selected, a call can be:

• Labeled - See Label Multiple Calls
• Deleted - See Delete Calls
• Renamed - See Rename Calls
• Assigned to a different pattern - See Replace a Pattern Label for Multiple Calls

Source: UltraVox XT 4 - Calls, Noldus Information Technology