Figure 13From: Exploring the Effect of Differences in the Acoustic Correlates of Adults' and Children's Speech in the Context of Automatic Speech RecognitionPlots of smooth spectra corresponding to MFCC feature along with linear (DFT) spectra of a stable voiced frame extracted from the digit "OH" signals having average pitch value of (a) 310 Hz (original), and (b) 190 Hz (after transformation of the average pitch of the signal from 310 Hz by factor of 1. 6).Back to article page