clarity.evaluator.mbstoi package¶
Submodules¶
Module contents¶
Modified Binaural Short-Time Objective Intelligibility Evaluator
- clarity.evaluator.mbstoi.mbstoi(left_ear_clean: ndarray, right_ear_clean: ndarray, left_ear_noisy: ndarray, right_ear_noisy: ndarray, sr_signal: float, gridcoarseness: int = 1, sample_rate: float = 10000.0, n_frame: int = 256, fft_size_in_samples: int = 512, n_third_octave_bands: int = 15, centre_freq_first_third_octave_hz: int = 150, n_frames: int = 30, dyn_range: int = 40, tau_min: float = -0.001, tau_max: float = 0.001, gamma_min: int = -20, gamma_max: int = 20, sigma_delta_0: float = 6.5e-05, sigma_epsilon_0: float = 1.5, alpha_0_db: int = 13, tau_0: float = 0.0016, level_shift_deviation: float = 1.6) float [source]¶
The Modified Binaural Short-Time Objective Intelligibility (mbstoi) measure.
- Parameters:
left_ear_clean (ndarray) – Clean speech signal from left ear.
right_ear_clean (ndarray) – Clean speech signal from right ear.
left_ear_noisy (ndarray) – Noisy/processed speech signal from left ear.
right_ear_noisy (ndarray) – Noisy/processed speech signal from right ear.
fs_signal (int) – Frequency sample rate of signal.
gridcoarseness (int) – Grid coarseness as denominator of ntaus and ngammas. Defaults to 1.
sample_rate (int) – Sample Rate.
n_frame (int) – Number of Frames.
fft_size_in_samples (int) – ??? size in samples.
n_third_octave_bands (int) – Number of third octave bands.
centre_freq_first_third_octave_hz (int) – 150,
n_frames (int) – Number of Frames.
dyn_range (int) – Dynamic Range.
tau_min (float) – Min Tau the ???
tau_max (float) – Max Tau the ???
gamma_min (int) – Minimum gamma the ???
gamma_max (int) – Maximum gamma the ???
sigma_delta_0 (float) –
???
sigma_epsilon_0 (float) –
???
alpha_0_db (int) –
???
tau_0 (float) –
???
level_shift_deviation (float) –
???
- Returns:
mbstoi index d.
- Return type:
float
Notes
All title, copyrights and pending patents pertaining to mbtsoi[1]_ in and to the original Matlab software are owned by oticon a/s and/or Aalborg University. Please see http://ah-andersen.net/code/<http://ah-andersen.net/code/>