librosa.output.times_csv¶
- librosa.output.times_csv(path, times, annotations=None, delimiter=', ', fmt='%0.3f')[source]¶
Save time steps as in CSV format. This can be used to store the output of a beat-tracker or segmentation algorihtm.
If only times are provided, the file will contain each value of times on a row:
times[0]\n times[1]\n times[2]\n ...
If annotations are also provided, the file will contain delimiter-separated values:
times[0],annotations[0]\n times[1],annotations[1]\n times[2],annotations[2]\n ...
Parameters: path : string
path to save the output CSV file
times : list-like of floats
list of frame numbers for beat events
annotations : None or list-like
optional annotations for each time step
delimiter : str
character to separate fields
fmt : str
format-string for rendering time
Raises: ParameterError
if annotations is not None and length does not match times
Examples
>>> y, sr = librosa.load(librosa.util.example_audio_file()) >>> tempo, beats = librosa.beat.beat_track(y, sr=sr) >>> times = librosa.frames_to_time(beats, sr=sr) >>> librosa.output.times_csv('beat_times.csv', times)