pyreaper.reaper¶

pyreaper.reaper(x, fs, minf0=40.0, maxf0=500.0, do_high_pass=True, do_hilbert_transform=False, inter_pulse=0.01, frame_period=0.005, unvoiced_cost=0.9)¶

REAPER (Robust Epoch And Pitch EstimatoR)

Perform REAPER analysis given an audio signal

Parameters:	x : np.ndarray, dtype=np.int16 Input audio signal fs : int Sampling frequency minf0 : float Min f0. Default is 40.0. maxf0 : float Max f0. Default is 500.0. do_high_pass : Bool Enable Rumble-removel highpass filter. Default is True. do_hilbert_transform : Bool Enable Hilbert transform that may reduce phase distortion. Default is False. inter_pulse : float Regular inter-mark interval to use in UV pitchmark regions. Default is 0.01 (sec) frame_period : float Frame period. Default is 0.005 (sec). unvoiced_cost : float Set the cost for unvoiced segments. Default is 0.9, the higher the value the more f0 estimates in noise.
Returns:	pm_times : np.ndarray, dtype=np.float32 Pitch mark time series in seconds pm : np.ndarray, dtype=np.int32 Pitch mark. Value 1 and 0 means voiced frame and unvoiced frame, respectively. f0_times : np.ndarray, dtype=np.float32 F0 time series in seconds f0 : np.ndarray, dtype=np.float32 F0 contour corr : np.ndarray, dtype=np.float32 Correlations
Raises:	RuntimeError if EpochTracker Init failed if EpochTracker ComputeFeatures failed if EpochTracker TrackEpochs failed if EpochTracker ResampleAndReturnResults failed

Examples

>>> from scipy.io import wavfile
>>> import pysptk
>>> import pyreaper
>>> fs, x = wavfile.read(pysptk.util.example_audio_file())
>>> pm_times, pm, f0_times, f0, corr = pyreaper.reaper(x, fs)