librosa.core.frames_to_samples¶

librosa.core.frames_to_samples(frames, hop_length=512, n_fft=None)[source]¶

Converts frame indices to audio sample indices

Parameters:	frames : number or np.ndarray [shape=(n,)] frame index or vector of frame indices hop_length : int > 0 [scalar] number of samples between successive frames n_fft : None or int > 0 [scalar] Optional: length of the FFT window. If given, time conversion will include an offset of n_fft / 2 to counteract windowing effects when using a non-centered STFT.
Returns:	times : number or np.ndarray time (in samples) of each given frame number: times[i] = frames[i] hop_length*

See also

frames_to_time: convert frame indices to time values
samples_to_frames: convert sample indices to frame indices

Examples

>>> y, sr = librosa.load(librosa.util.example_audio_file())
>>> tempo, beats = librosa.beat.beat_track(y, sr=sr)
>>> beat_samples = librosa.frames_to_samples(beats)