An Improved MMSE Amplitude Estimator under Generalized Gamma Distribution Based on Auditory Perception
Figure 4
Performance in terms of mean segmental SNR, PESQ, and WSS measures as a function of input SNR (dB) for car noise, of the noisy speech signal, the speech signal enhanced by the gamma-based MMSE estimator, the perceptual Wiener filtering, and the proposed estimator. Higher values of the segmental SNR and PESQ and lower WSS measures indicate better performances.
