Patent ID: 11895479
Assignee: DOLBY LABORATORIES LICENSING CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. The method according to claim 10, wherein the determining step involves:
calculating a frame energy ratio Ri for each frame, according to:, R
    i
   
   =
   
    
     E
     i
    
    
     
      ∑
      
         
       
        i
        =
        1
       
      
      
         
       N
      
     
     
      E
      i
     
    
   
  
  ,, where Ei is an average of energy of all channels in frame i, and
determining that frame i is impulse-like if Ri is greater than a first threshold and Ei is greater than a second threshold.