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]

Initialize a chord task transformer


__init__([name, sr, hop_length]) Initialize a chord task transformer
decode_events(encoded[, transition, …]) 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.