Many exams include audio clips for candidates to listen to through their headphones.    If a candidate has issues with the audio, please attempt the following steps:

1. Move the USB connector for the headphones to another USB port if possible.
2. If possible, move the candidate to another computer by stopping the exam, (ctl/sft/F12) move the candidate to another computer and relaunch the exam. 
3. Call the Technical Support team to assistance.