The following are the approximate values of the Koine Greek consonants used during the (Roman) Imperial period.

In the audio samples below, the consonants are pronounced with the vowel [a] for demonstration.

IPA chart pulmonic consonants with audio
Place → Labial Coronal Dorsal Laryngeal
↓ Manner Bila­bial Labio­dental Den­tal Alve­olar Palato-alve­olar Retro­flex Pal­a­tal Ve­lar Uvu­lar Pha­ryn­geal Glot­tal
Nasal  
μ
  
 
  
 
 
  
ν
 
      
 
  
 
  
 γκ,  γγ
  
 
    
Plosive
π
μπ
 
  
 
 
τ
ντ
    
 
 
 
 
 
κ
  γκ,  γγ
 
  
 
 
  
Fricative
φ, αυ, ευ
β, αυ, ευ
φ, αυ, ευ
β, αυ, ευ
θ
δ
σ, σσ
ζ, σμ
 
 
 
 
 
 
 
 
 
 
χ
γ
 
 
 
 
χ
 
Approximant    
 
 
        
 
  
 
  
γ
 
  
 
    
Trill  
 
 
        
ρ, ρρ
      
 
 
      
 
 
    
Flap or tap  
 
 
  
 
    
 
    
 
      
 
 
  
 
 
  
Lateral fricative      
 
 
  
 
  
 
  
 
        
Lateral approximant        
λ, λλ
    
 
  
 
  
 
      
Lateral flap