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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: J Voice. 2012 Apr 18;26(5):566–576. doi: 10.1016/j.jvoice.2011.09.006

Figure 2.

Figure 2

Representative waveforms and narrowband spectrograms obtained during acoustic signal typing. A: Type 1 signal produced by a patient with bilateral vocal fold scar. B: Type 2 signal produced by a patient with bilateral type II sulcus vocalis. A bifurcation is indicated by an arrow at ~500 ms in the spectrogram. C: Type 3 signal produced by a patient with bilateral type II sulcus vocalis with concomitant bilateral scar. D: Distribution of signal types produced by controls and patients with vocal fold scar and pathologic sulcus vocalis (n = 23 in each group).