Patent ID: 11948590
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 29:
30. An apparatus for providing a processed audio signal representation on the basis of input audio signal representation,
wherein the apparatus is configured to apply an un-windowing, in order to provide the processed audio signal representation on the basis of the input audio signal representation,
wherein the apparatus is configured to adapt the un-windowing in dependence on one or more signal characteristics and/or in dependence on one or more processing parameters used for a provision of the input audio signal representation,
wherein the un-windowing is configured to determine the processed audio signal representation yr[n] on the basis of the input audio signal representation y[n] according to, y
     r
    
    [
    n
    ]
   
   =
   
    
     
      (
      
       
        y
        [
        n
        ]
       
       -
       d
      
      )
     
     
      
       w
       a
      
      [
      n
      ]
     
    
    +
    d
   
  
  ,
  
   n
   ∈
   
    [
    
     
      n
      s
     
     ;
     
      n
      e
     
    
    ]
   
  
 

wherein d is a DC component;
wherein n is a time index;
wherein ns is a time index of a first sample of an overlap region;
wherein ne is a time index of a last sample of the overlap region; and
wherein wa[n] is an analysis window used for a provision of the input audio signal representation.