Voiced and Voiceless

Voicing

 

introduces vibration into the

resonating column of air. When the vocal

 

folds are tensed, they vibrate as the air

 

stream passes them. The result is a

 

 

voiced

 

sound, such as /z/ and /v/. When

the vocal folds relax, the air stream

 

passes them without causing vibration.

 

The result is a

 

 

voiceless

sound, such as

/s/, /f/ and /t/.