Patent ID: 11922961
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. The audio decoder according to claim 1, wherein the transition processor is configured to obtain the second zero-input-response, or a second component of the combined zero-input-response according to, s
     Z
     2
    
    (
    n
    )
   
   =
   
    -
    
     
      ∑
      
       m
       =
       1
      
      M
     
      
     
      
       a
       m
      
      ⁢
      
       
        s
        Z
        2
       
       (
       
        n
        -
        m
       
       )
      
     
    
   
  
  ,
  
   n
   =
   0
  
  ,
  …
     
  ,
  
   N
   -
   1
  
 

or according to, s
     Z
     2
    
    (
    n
    )
   
   =
   
    +
    
     
      ∑
      
       m
       =
       1
      
      M
     
      
     
      
       a
       m
      
      ⁢
      
       
        s
        Z
        2
       
       (
       
        n
        -
        m
       
       )
      
     
    
   
  
  ,
  
   n
   =
   0
  
  ,
  …
     
  ,
  
   N
   -
   1
  
 

with

sZ2(n)=(n),n=−L, . . . ,−1

M≤L 

wherein n designates a time index,
wherein sZ2(n) for n=0, . . . , N−1 designates the second zero input response for time index n, or a second component of the combined zero-input-response for time index n;
wherein sZ2(n) for n=−L, . . . , −1 designates the second initial state for time index n, or a second component of the initial state for time index n;
wherein m designates a running variable,
wherein M designates a filter length of the linear predictive filter;
wherein am designates filter coefficients of the linear predictive filter;
wherein (n) designates values of the modified version of the first decoded audio information for time index n;
wherein N designates a processing length.