Figure 6. Change the frequency at Hertz scale to Mel Scale.-Development an Automatic Speech to Facial Animation Conversion for Improve Deaf Lives

Main Authors: S. Alireza Kasaei, S. Hamidreza Kasaei, S. Mohammadreza Kasaei
Format: info Image
Bahasa: eng
Terbitan: , 2011
Subjects:
Online Access: https://www.edusoft.ro/brain/index.php/brain/issue/view/14
Daftar Isi:
  • Following computing the spectrum power and applying the above equation on frequency axis, some mediating filters equal to identical overlapping are applied on the scaled spectrum and each filters energy is computed as particularity. This is because conception of a particular frequency by the auditory system is affected by a critical band of frequencies surrounding it. Number of filters is usually between 20 and 30. Logarithmic non linear change operations on obtained particulates for adjusting amplified of particularities and their important though coordinating them with the structure of the auditory system following computing energy of each filter is done as follows: in the following equation F1 is filter in I th, and e (i) is logarithm of energy at ith band.