Are there special procedures or best practices for setting up the headsets for the AP Chinese and AP Japanese Exams?

Yes.

Before exam day:

• Check the connection of the headsets that will be used with the testing computers. Older headsets with newer computers might not be compatible.
• During the initial readiness checks, use the headsets that will be used for testing to ensure they're compatible.
• Clean the headsets.

For the exam:

• Be sure the same headsets are used that were tested during the readiness checks.
• It's recommended to have some extra headsets available.