| Language: | Koyra Chiini | 
| Feature: | Vowel Nasalization by John Hajek | 
| Value: | Contrast present | 
|            i  |                    
  |                    u  |                    
  |                    iː  |                    
  |                    uː  |                    
  |                    ĩ  |                    
  |                    ũ  |                    
  |                    ĩː  |                    
  |                    
  |       
|            e  |                    
  |                    o  |                    
  |                    eː  |                    
  |                    oː  |                    
  |                    ẽ  |                    
  |                    õ  |                    
  |                    
  |                    
  |                    õː  |       
|            
  |                    a  |                    
  |                    
  |                    
  |                    aː  |                    
  |                    
  |                    æ̃  |                    ã  |                    
  |                    
  |                    
  |                    ãː  |                    
  |