Music novelty
A musical change point is a point in a song where the music changes in
an exciting or dramatic way. Knowing these change points can allow us
to, say, line up important moments in a story with exciting moments in
music. For applications of music change points, see these papers:
-
radiotool.algorithms.novelty(song, k=64, wlen_ms=100, start=0, duration=None, nchangepoints=5, feature='rms')
Return points of high “novelty” in a song
(e.g., significant musical transitions)
| Parameters: |
- song (radiotool.composer.Song) – Song to analyze
- k (int) – Width of comparison kernel (larger kernel finds coarser differences in music)
- wlen_ms (int) – Analysis window length in milliseconds
- start (float) – Where to start analysis within the song (in seconds)
- duration (float) – How long of a chunk of the song to analyze (None analyzes the entire song after start)
- nchangepoints (int) – How many novel change points to return
- feature (“rms” or “mfcc” (will support “chroma” eventually)) – Music feature to use for novelty analysis
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| Returns: | List of change points (in seconds)
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| Return type: | list of floats
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