Cognition of Graphics and Voices is a factor to make the input data of Artificial Intelligence.
Pattern Recognition (one of Multi-Variable Analysis ) is used. And characteristics of the graphic data and voice data is use for cognition.
Graphic data is made on grids.
"Often same number to the next-door" and "Difference to the next-door is large if outline is sharp" are characteristics.
Analysis of voices is the analysis of the order of letter. And before this analysis Spectrum Analysis is used to change the sound into the voices.