pumpp.task.ChordTransformer¶
-
class
pumpp.task.
ChordTransformer
(name='chord', sr=22050, hop_length=512)[source]¶ Chord annotation transformers.
This transformer uses a (pitch, root, bass) decomposition of chord annotations.
See also
SimpleTransformer
Attributes
name (str) The name of the chord transformer sr (number > 0) The sampling rate of audio hop_length (int > 0) The number of samples between each annotation frame Methods
__init__
([name, sr, hop_length])Initialize a chord task transformer decode_events
(encoded)Decode labeled events into (time, value) pairs decode_intervals
(encoded[, duration, multi])Decode labeled intervals into (start, end, value) triples empty
(duration)Empty chord annotations encode_events
(duration, events, values[, dtype])Encode labeled events as a time-series matrix. encode_intervals
(duration, intervals, values)Encode labeled intervals as a time-series matrix. inverse
(pitch, root, bass[, duration])merge
(data)Merge an array of output dictionaries into a single dictionary with properly scoped names. pop
(field)register
(field, shape, dtype)Register a field as a tensor with specified shape and type. scope
(key)Apply the name scope to a key transform
(jam[, query])Transform jam object to make data for this task transform_annotation
(ann, duration)Apply the chord transformation.