pumpp.task.ChordTagTransformer¶
-
class
pumpp.task.
ChordTagTransformer
(name='chord', vocab='3567s', sr=22050, hop_length=512)[source]¶ Chord transformer that uses a tag-space encoding for chord labels.
See also
Attributes
name (str) name of the transformer vocab (str) A string of chord quality indicators to include: - ‘3’: maj/min - ‘5’: ‘3’ + aug/dim - ‘6’: ‘3’ + ‘5’ + maj6/min6 - ‘7’: ‘3’ + ‘5’ + ‘6’ + 7/min7/maj7/dim7/hdim7/minmaj7 - ‘s’: sus2/sus4 Note: 5 requires 3, 6 requires 5, 7 requires 6. sr (number > 0) Sampling rate of audio hop_length (int > 0) Hop length for annotation frames Methods
__init__
([name, vocab, sr, hop_length])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
(encoded[, duration])Inverse transformation 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 simplify
(chord)Simplify a chord string down to the vocabulary space transform
(jam[, query])Transform jam object to make data for this task transform_annotation
(ann, duration)Transform an annotation to chord-tag encoding vocabulary
()