A template is an object with acoustic information (frequency, time, and volume) on an animal volcalization. In monitoR, all templates are stored within a template list, which has the (virtual) class TemplateList. Because the structure of the two types of templates differs slightly (see Template), there are actually two classes for template lists: corTemplateList and binTemplateList, and the virtual class TemplateList (which includes both types of template lists) is used to define most methods.
A template is an object with acoustic information (frequency, time, and amplitude) on an animal volcalization. Objects of class "corTemplate" are correlation templates, which contain quantitative data on amplitude. Objects of class "binTemplate" are binary templates, which contain only qualitative data on amplitude: only whether the it is high (“on” cells) or low (“off”) cells. The class "Template" is a virtual class, and both types of templates have this class. Templates are always stored as part of a TemplateList, either a corTemplateList or a binTemplateList.
Use these functions to combine any number of templates together into a larger template list. They can combine template lists that themselves contain any number of templates.
Evaluate whether the detected events are True +, True -, False +, or False - detections by comparing the results to a table of events with known sources and times (such as annotations from viewSpec). Events to evaluate may be either directly from an object of class detectionList, a csv file or data frame resulting from a call to getPeaks or getDetections, or a data frame downloaded from an acoustics database. A value for score.cutoff must be supplied to distinguish between True + and False -, even if assessing all peaks.
Use this function to view a spectrogram and score plot of detections or peaks. In its simplest usage, showPeaks will show all detections within for the first template within the detection list object, one after the other. With the verify option (verify = TRUE), the user can tag detections or peaks as TRUE or FALSE, and these results will be saved in an updated detection list object.
Interactively page through short or long spectrograms of wav or mp3 files or Wave objects. Extract short or long wave files, play audio while viewing spectrogram, and annotate sounds in the spectrogram. Load annotations from csv files for viewing.
Downsample or upsample Wave objects by specifying either a new sample rate or matching the sample rate of a different Wave object. Optional adjustable dithering.
Provided a detectionList object containing results from N templates scored against the same survey with Y song events, compareTemplates will create a Y x N matrix to compare how each template scored each song event. If the song events are the sound clips used to create each template, compareTemplates may be a means of measuring overall similarity among sound events. Can be used to identify template clips that may match more than one song type.
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