Analyzer

CREMA analyzer interface

crema.analyze.analyze(filename=None, y=None, sr=None)

Analyze a recording for all tasks.

Parameters:

filename : str, optional

Path to audio file

y : np.ndarray, optional

sr : number > 0, optional

Audio buffer and sampling rate

.. note:: At least one of `filename` or `y, sr` must be provided.

Returns:

jam : jams.JAMS

a JAMS object containing all estimated annotations

Examples

>>> from crema.analyze import analyze
>>> import librosa
>>> jam = analyze(filename=librosa.ex('brahms'))
>>> jam
<JAMS(file_metadata=<FileMetadata(...)>,
      annotations=[1 annotation],
      sandbox=<Sandbox(...)>)>
>>> # Get the chord estimates
>>> chords = jam.annotations['chord', 0]
>>> chords.to_dataframe().head(5)
        time  duration    value  confidence
0   0.000000  3.622313    G:min    0.767835
1   3.622313  1.207438  C:min/5    0.652179
2   4.829751  1.207438    D:maj    0.277913
3   6.037188  4.086712    G:min    0.878656
4  10.123900  1.486077   D#:maj    0.608746