Figure 3
From: Towards reconstructing intelligible speech from the human auditory cortex
Subjective evaluation of the reconstruction accuracy. (A) The behavioral experiment design used to test the intelligibility and the quality of the reconstructed digits. Eleven subjects listened to digit sounds (zero to nine) spoken by two male and two female speakers. The subjects were asked to report the digit, the quality on the mean-opinion-scale, and the gender of the speaker. (B) The intelligibility score for each model defined as the percentage of correct digits reported by the subject. (C) The quality score on the MOS scale. (D) The speaker gender identification rate for each model. (E) The digit confusion patterns for each of the four models. The DNN vocoder shows the least amount of confusion among the digits.
