Where does the headband of the bone conduction transducer apply pressure during testing?

The headband of the bone conduction transducer applies pressure on the forehead during testing because this location effectively transmits vibrations through the skull to the cochlea in both ears. The forehead is a well-suited area for bone conduction testing because it provides a stable and consistent contact point, ensuring that the vibrations are delivered evenly. Additionally, the forehead has adequate bone density to facilitate the proper transmission of sound signals without interference from other structures.

Using the forehead minimizes the risk of any movement or shifting that could distort the results, which could happen if the transducer were placed on less stable areas, such as the cheek or pinna. The mastoid process is a common location for hearing tests, but in the context of this question, the forehead is preferred because it allows for direct and effective stimulation of the auditory system.