TimelineLabeler Class Reference
A
MarSystem that loads a
TimeLine object with label info corresponding to an audio file, where at each timeline region a class or label is assigned. Can be used for training a classifier, using the different labeled regions of the signal as ground truth.
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#include <TimelineLabeler.h>
Inherits Marsyas::MarSystem.
Detailed Description
A
MarSystem that loads a
TimeLine object with label info corresponding to an audio file, where at each timeline region a class or label is assigned. Can be used for training a classifier, using the different labeled regions of the signal as ground truth.
This MarSystem is intended to be used in series right after a SoundFileSource (or other sound source MarSystem
- e.g. a CollectionFileSource), linking its labelFiles and currentLabelFile controls to the SoundFileSource labelNames and currentLabel controls, respectively. It then exposes the same controls that SoundFileSource would expose if not using timelines at all, so that the label, labelNames and nLabels controls of an Annotator or an WekaSink MarSystem can be linked to this MarSystem similarly to the way they are connected to a SoundFileSource MarSystem. TimelineLabaler assumes that the regions in the timeline are non-overlapping and ordered by their start sample.
Controls:
- mrs_string/labelFiles [w] : list of label files (Marsyas timeline files - .mtl) to be opened, depending on the currentLabelFile control (see below). It should have a format like, for e.g.: "audio1.tml,audio2.tml,audio3.tml,", which is what is obtained when using a CollectionFileSource to read a audio1.wav TAB audio1.tml collection file (just link this control to its mrs_string/labelNames control).
- mrs_real/currentLabelFile [w] : selects which one of the labelFiles (see above) should be selected. Usually this control is to be linked to the currentLabel control of a SoundFileSource.
- mrs_string/labelNames [r] : list of classes in the currently loaded timeline, in the format "label1,label2,label3,".
- mrs_natural/nLabels [r] : number of distict labels in the labelNames (see above) controls (for the example given above, it would have a value of 3).
- mrs_real/currentLabel [r] : indicates the label of the current audio stream position (as a numeric index to the label in labelNames control - see above).
Definition at line 54 of file TimelineLabeler.h.
The documentation for this class was generated from the following files:
