Speech Analysis
Below is an example of the EWD analysis of a speech signal '...changed in eighteen seventy five.' spoken by a female subject. Because the EWD incorporates masking effects, the EWD registers perceptually meaningful information only. Although extensive application of the EWD to speech analysis has not yet been conducted, it is proposed that the EWD might be applicable in this area. It might also be applicable as a front-end to a speech recognition algorithm, bypassing perceptually masked signal detail.
Figure 2: EWD of a vibraphone note F#4 (hard mallet attack) reverberated by a 3 second Schroeder reverberator.
Last updated: Dec 09 2009