librosa.core.to_mono¶
-
librosa.core.
to_mono
(y)[source]¶ Force an audio signal down to mono.
Parameters: - y : np.ndarray [shape=(2,n) or shape=(n,)]
audio time series, either stereo or mono
Returns: - y_mono : np.ndarray [shape=(n,)]
y as a monophonic time-series
Notes
This function caches at level 20.
Examples
>>> y, sr = librosa.load(librosa.util.example_audio_file(), mono=False) >>> y.shape (2, 1355168) >>> y_mono = librosa.to_mono(y) >>> y_mono.shape (1355168,)