Audio component group

The audio component group is a discrete component group for the management of audio items that form stimulus components (or that form part of more complex component groups or components). Each audio item can be associated with factors and levels and can be formatted and manipulated via variables. The screen contains a section on the left hand side for managing audio items and a section on the right hand side for managing variables. The splitter (Figure 1) can be dragged to to allow customization of the screen layout, and the button on the top of the splitter expands and collapses the panel.

Figure 1. Discrete component group screen splitter

Adding audio items

Audio items can be imported by clicking Import. Multiple items can be imported at once by holding down the Ctrl key and selecting each of the desired items in the import window (Figure 2).

Figure 2. Import audio example

Removing audio items

Audio items can be removed by selecting the item using the checkbox and clicking Delete in the toolbar above the audio items table. You can also select and delete multiple items at once.

Reordering audio items

The order of audio items can be changed by dragging and dropping.

Associating levels with an audio item

Levels can be associated with an audio item by selecting them from the Levels dropdown list (Figure 3) and clicking Save. Alternatively, the Associating levels with multiple audio items method below can also be used.

Figure 3. Associating levels with an audio item

Associating levels with multiple audio items

Levels can be associated with one or more audio items by first selecting the items (using their respective checkboxes) and then selecting Add levels in the toolbar above the audio items table.

Dissociating levels from an audio item

Levels can be dissociated from an audio item by clicking the x on their label (Figure 3) and clicking Save. Alternatively, the Dissociating levels from multiple audio items method below can also be used.

Dissociating levels from multiple audio items

Levels can be dissociated from one or more audio items by first selecting the items (using their respective checkboxes) and then selecting Remove levels in the toolbar above the audio items table.

Adding a variable to the component group

Click New in the in the variable column in the variable manager. Give the variable a name, select the variable type from the dropdown list provided and set the variable strategy:

  • Exclusive: values will only be allocated once per stimulus cycle (i.e. once a value from this variable has been allocated to an audio item, that value will not be available for allocation to any other item).
  • Non-exclusive: values can be allocated zero, one or multiple times per stimulus cycle (i.e. a value from this variable can be allocated to multiple audio items).

Removing a variable from the component group

Variables can be deleted by clicking on Delete (or D in a small panel) on the undesired variable (i.e. one with a name and strategy value).

WARNING: Deleting a variable will remove:

  • any trials rules containing values belonging to the variable.

Adding a value to a variable

Click New in the in the value column of the desired variable in the variable manager and give it a value. Variable values are allocated to their assigned audio items randomly.

Removing a value from a variable

Variable values can be deleted by clicking on Delete (or D in a small panel) on the undesired value (i.e. one without a name and strategy value).

WARNING: Deleting a variable value will remove:

Associating variables with an audio item

Variables can be associated with an audio item by selecting them from the Variables dropdown list (Figure 3) and clicking Save. Alternatively, the Associating variables with multiple audio item method below can also be used.

Figure 3. Associating variables with an audio item

Associating variables with multiple audio items

Variables can be associated with one or more audio items by first selecting the items (using their respective checkboxes) and then selecting Add variables in the toolbar above the audio items table.

Dissociating variables from an audio item

Variables can be dissociated from an audio item by clicking the x on their label (Figure 3) and clicking Save. Alternatively, the Dissociating variables from multiple audio items method below can also be used.

Dissociating variables from multiple audio items

Variables can be dissociated from one or more audio items by first selecting the items (using their respective checkboxes) and then selecting Remove variables in the toolbar above the audio items table.