Using the level I material I would suggest that you start your meditations with asking your master to help you with your practice for the purpose of working on your hearing.
In the level II material this is a section on helping others with hearing issues. You prepare, as you normally would, then I believe you use the middle finger to hold down the flaps over the ear canal. While you hold them down you send messages like, "channels are open", "Hearing is completely normal". You do this for several minutes. At the end you quickly pull the fingers away.
Master Lin says that if the person hears a popping sounds then 80% of the healing has occurred.
That is the best of my recollection. I've never reviewed the material for use.
You are perfection.
Iam2 
