Figure 7.
Overt speech reconstruction accuracy for the modulation-based speech representation. (A) Overall reconstruction accuracy for each subject using the modulation-based speech representation. Error bars denote s.e.m. Overall accuracy is reported as the mean over all features (5 spectral and 12 temporal modulations ranging between 0.5–8 cyc/oct and -32-32 Hz, respectively). The overall modulation reconstruction accuracy for the overt speech was greater than baseline control reconstruction accuracy in all individuals (p < 10−5; Hotelling's t-test). Baseline control reconstruction accuracy was not significantly different from zero (p > 0.1; one-sample t-test; gray dashed line). (B) Reconstruction accuracy as a function of rate and scale averaged over all subjects (N = 7).