class pumpp.task.SimpleChordTransformer(name='chord', sr=22050, hop_length=512)[source]

Simplified chord transformations. Only pitch class activity is encoded.

See also



name (str) name of the transformer
sr (number > 0) Sampling rate of audio
hop_length (int > 0) Hop length for annotation frames
__init__(name='chord', sr=22050, hop_length=512)[source]


__init__([name, 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(*args, **kwargs)
merge(data) Merge an array of output dictionaries into a single dictionary with properly scoped names.
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.