Patent ID: 11930347
Assignee: DOLBY LABORATORIES LICENSING CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. The method according to claim 5, wherein the measure of correlation between the given audio element and any of the plurality of audio elements is given by, r
      
        o
        ⁢
        u
      
    
    =
    
      
        Re
        ⁡
        
          (
          
            
              X
              o
              *
            
            ⁢
            
              X
              u
            
          
          )
        
      
      
        
          
            E
            o
          
          ⁢
          
            E
            u
          
        
      
    
  
  ,

where indices o and u indicate the given audio element and the one of the plurality of audio elements, respectively, with Xo being the spectrum of the given audio element, Xu being the spectrum of the one of the plurality of audio elements, Eo being the energy of the given audio element, and Eu being the energy of the one of the plurality of audio elements; wherein the third measure of energy is given by

aoc=Σu|rou|Eo,

and/or wherein the fourth measure of energy is given by

boc=Σo≠urou√{square root over (EocEuc)}.