textgRid
The software application Praat can be used to annotate waveform data
(e.g., to mark intervals of interest or to label events). These
annotations are stored in a Praat TextGrid object, which consists of a
number of interval tiers and point tiers. An interval tier consists of
sequential (i.e., not overlapping) labeled intervals. A point tier
consists of labeled events that have no duration. The textgRid package
provides S4 classes, generics, and methods for accessing information
that is stored in Praat TextGrid objects.
S4 classes:
The textgRid package defines four S4 classes, whose slots and
accessors are described in the tables below.
Tier
@name |
character |
tierName() |
@number |
numeric |
tierNumber() |
IntervalTier
(inherits from Tier)
@startTimes |
numeric |
intervalStartTimes() |
@endTimes |
numeric |
intervalEndTimes() |
@labels |
character |
intervalLabels() |
PointTier (inherits
from Tier)
@times |
numeric |
pointTimes() |
@labels |
character |
pointLabels() |
TextGrid
@.Data |
list (of IntervalTiers and
PointTiers) |
|
@startTime |
numeric |
textGridStartTime() |
@endTime |
numeric |
textGridEndTime() |
TextGrid object
instantiation:
An instance of the TextGrid class is created with the S4
generic function TextGrid().