There are many instances in PCT where you are given the opportunity to select sounds that will be used in an analysis or a search. This section describes the general interface used in all such instances, including using featural descriptions to select sounds. See also Feature Selection for information about how to seelct features on which to do analyses.
When selecting a sound or a pair of sounds, you will be presented with a dialogue box that contains all of the unique segments that occur in the corpus. If there is no feature system associated with the corpus, then these will be arranged in alphabetical order as a solid block. If there is an associated feature system, then the segments will be arranged in an IPA-style format. You can customize the layout of this display; for details on how to do so, see Edit inventory categories. If there are associated features, there will also be an option at the top of the “select segment” box to “select by feature.”
To select sounds, there are two options:
First, you can simply click on individual segments in the list or chart of segments. Multiple segments can be selected at once. If you are selecting sounds for an analysis that involves a single segment, then each selected segment will undergo the same analysis. (E.g., in a Phonological Search, if you select A, B, C, and D as the target sounds, then each of those sounds will be searched for in the same environment.) If you are selecting sounds for an analysis that involves a pair of sounds, then all the pairwise combinations of the selected sounds will be created. (E.g., if you select A, B, C, and D as sounds in a pairwise selection, then all of the pairs, i.e., AB, AC, AD, BC, BD, and CD, will be selected. In many analyses the order of the sounds in the pair doesn’t matter, but PCT also will allow you to switch the order after the pairs have been created.)
Second, if there is an associated feature file, you can select sounds using featural descriptions. To do so, simply start typing a feature value into the “Select by feature” box at the top of the sound selection box. As soon as any value or characters are typed, a dropdown box will appear that lists all of the available features that match the current typing. For example, just typing a “+” sign will reveal + values of all features that have a + specification in the feature chart (e.g., +anterior, +coronal, +long, +nasal, + sonorant, +vocalic, etc.). Typing a letter, such as “c” will show all features that start with that letter (e.g., -consonantal, -constricted glottis, -consonantal, -coronal, +consonantal, +constricted glottis, +consonantal, +coronal, etc.). You can continue typing out the feature or select one from the list by either clicking on it or hitting “return” when it is the one highlighted. Once a feature is entered, all segments that have that feature specification will be highlighted in red on the chart. This does not in fact “select” them yet – it just indicates which segments match the currently listed specifications. Once segments are highlighted, you may continue entering features to winnow down the selection, or revert to clicking on individual segments (e.g., from among the highlighted ones). As more features are typed in and selected, the highlighting in the chart will update to match the current feature specification. (Features in the list can be separated by commas or spaces.) To actually SELECT all the highlighted segments, you can simply hit “enter” again after the names of the features are completely entered, and the highlighting will change to selection. Alternatively, you can click on the “Select highlighted” button. Note that if you just leave them highlighted, no segments will actually be selected.