A break or separation in the middle ear bones.

A microphone that lets a person focus on a sound coming from one direction rather than picking up sounds equally from all directions.

The capability of connecting a sound source, such as a TV or CD or DVD player directly into a hearing aid. DAI bypasses the hearing aid’s microphone by plugging a cord connected to a sound source directly into the hearing aid. Most hearing aids do not have the necessary DAI connections (called boots or shoes) […]

(dip-lah-KOO-sis moh-nar-RAL-is) is where you hear a single sound as two different sounds in the same ear.

(dip-lah-KOO-sis eh-KOE-ih-ka) as it’s name implies, is where you hear the same sound repeated a fraction of a second later in the affected ear—thus you hear the original sound followed by an “echo” of the original sound.

(dip-lah-KOO-sis dis-har-MON-ih-kah) is a condition in which the same sound is heard at a different pitch in each ear.