Patent ID: 11900955
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. The apparatus according to claim 1,
wherein the object metadata processor is configured to calculate the second position of the audio object depending on at least one of a first linear mapping function and a second linear mapping function,
wherein the first linear mapping function is defined to map a first azimuth value to a second azimuth value,
wherein the second linear mapping function is defined to map a first elevation value to a second elevation value,
wherein φleftnominal indicates a left azimuth screen edge reference,
wherein φrightnominal indicates a right azimuth screen edge reference,
wherein θtopnominal indicates a top elevation screen edge reference,
wherein θbottomnominal indicates a bottom elevation screen edge reference,
wherein φleftrepro indicates a left azimuth screen edge of the screen,
wherein φrightrepro indicates a right azimuth screen edge of the screen,
wherein θtoprepro indicates a top elevation screen edge of the screen,
wherein θbottomrepro indicates a bottom elevation screen edge of the screen,
wherein φ indicates the first azimuth value,
wherein φ′ indicates the second azimuth value,
wherein θ indicates the first elevation value,
wherein θ′ indicates the second elevation value,
wherein the second azimuth value φ′ results from a first mapping of the first azimuth value φ according to the first linear mapping function according to, φ
   ′
  
  =
  
   {
   
    
     
      
       
        
         
          
           
            
             φ
             right
             repro
            
            +
            
             180
             ⁢
             °
            
           
           
            
             φ
             right
             nominal
            
            +
            
             180
             ⁢
             °
            
           
          
          ·
          
           (
           
            φ
            +
            
             180
             ⁢
             °
            
           
           )
          
         
         -
         
          180
          ⁢
          °
          ⁢
             
          for
         
           
         -
         
          180
          ⁢
          °
         
        
        ≤
        φ
        <
        
         φ
         right
         nominal
        
         
       
      
     
     
      
       
        
         
          
           
            
             φ
             left
             repro
            
            -
            
             φ
             right
             repro
            
           
           
            
             φ
             left
             nominal
            
            -
            
             φ
             right
             nominal
            
           
          
          ·
          
           (
           
            φ
            -
            
             φ
             right
             nominal
            
           
           )
          
         
         +
         
          
           φ
           right
           repro
          
          ⁢
            
          for
          ⁢
             
          
           φ
           right
           nominal
          
         
        
        ≤
        φ
        <
        
         φ
         left
         nominal
        
       
      
     
     
      
       
        
         
          
           
            
             180
             ⁢
             °
            
            -
            
             φ
             left
             repro
            
           
           
            
             180
             ⁢
             °
            
            -
            
             φ
             left
             nominal
            
           
          
          ·
          
           (
           
            φ
            -
            
             φ
             left
             nominal
            
           
           )
          
         
         +
         
          
           φ
           left
           repro
          
          ⁢
            
          for
          ⁢
             
          
           φ
           left
           nominal
          
         
        
        ≤
        φ
        <
        
         180
         ⁢
         °
        
       
      
     
    
    ,
   
  
 

and
wherein the second elevation value θ′ results from a second mapping of the first elevation value θ according to the second linear mapping function according to, θ
   ′
  
  =
  
   {
   
    
     
      
       
        
         
          
           
            
             θ
             bottom
             repro
            
            +
            
             90
             ⁢
             °
            
           
           
            
             θ
             bottom
             nominal
            
            +
            
             90
             ⁢
             °
            
           
          
          ·
          
           (
           
            θ
            +
            
             90
             ⁢
             °
            
           
           )
          
         
         -
         
          90
          ⁢
          °
          ⁢
             
          for
         
           
         -
         
          90
          ⁢
          °
         
        
        ≤
        θ
        <
        
         θ
         bottom
         nominal
        
         
       
      
     
     
      
       
        
         
          
           
            
             θ
             top
             repro
            
            -
            
             θ
             bottom
             repro
            
           
           
            
             θ
             top
             nominal
            
            -
            
             θ
             bottom
             nominal
            
           
          
          ·
          
           (
           
            θ
            -
            
             θ
             bottom
             nominal
            
           
           )
          
         
         +
         
          
           θ
           bottom
           repro
          
          ⁢
            
          for
          ⁢
             
          
           θ
           bottom
           nominal
          
         
        
        ≤
        θ
        <
        
         θ
         top
         nominal
        
       
      
     
     
      
       
        
         
          
           
            
             90
             ⁢
             °
            
            -
            
             θ
             top
             repro
            
           
           
            
             90
             ⁢
             °
            
            -
            
             θ
             top
             nominal
            
           
          
          ·
          
           (
           
            θ
            -
            
             θ
             top
             nominal
            
           
           )
          
         
         +
         
          
           θ
           top
           repro
          
          ⁢
            
          for
          ⁢
             
          
           θ
           top
           nominal
          
         
        
        ≤
        θ
        <
        
         90
         ⁢
         °
        
       
      
     
    
    .