Figure 4
From: A hybrid algorithm for blind source separation of a convolutive mixture of three speech sources
Speech signal segment, detected pitch, speech segment with pitch and harmonic removed, and time domain signal spectrogram. (a) The segment of the speech signal as shown in Figure 3. (b) The pitch detected only in the formant sections. (c) The same speech segment but pitch and harmonic removed from it (only in formants). (d) The spectrogram of the time domain signal in (c).