What are Assistive Listening Devices (ALDs)?
You may have certain communication needs that cannot be solved by just using hearing aids. These situations may involve telephone, radio, television, or the inability to hear the door chime, telephone bell, and alarm clock. Special devices have been developed to solve these problems. Like hearing aids, assistive listening devices and alerting devices make sounds louder. Typically, a hearing aid makes all sounds in the environment louder. Assistive listening devices and alerting devices can increase the loudness of a desired sound, like a radio or television, a public speaker, or an alarm system, or may make an auditory alarm (such as a smoke signal) into a visual alarm (such as a strobe light). . (by sicologic.
You may have certain communication needs that cannot be solved by the use of hearing aids alone. These situations may involve the use of the telephone, radio, television, and the inability to hear the door chime, telephone bell, and alarm clock. Special devices have been developed to solve these problems. Like hearing aids, assistive listening devices make sounds louder. Typically, a hearing aid makes all sounds in the environment louder. Assistive listening devices can increase the loudness of a desired sound (a radio or television, a public speaker, an actor, someone talking in a noisy place) without increasing the loudness of the background noises. This is because the microphone of the assistive listening device is placed close to the speaker, while the microphone of the hearing aid is always close to the listener.
*ALDs are Amplification Insturments and should not be confused with Hearing Aids, or used in place of. *ALDs are designed to be helpful in specific listening situations. *ALDs may help the person who is not ready for a Hearing Aid and misses or dose not understand parts of what is being said. *ALDs can be a help to the person wearing a Hearing Aid by putting the speakers voice directly into the Hearing Aid. WHAT IS THE DIFFERENCE BETWEEN AN ALD AND A HEARING AID *All of the coomponents of the Hearing Aid, the Microphone, the Amplifier, the Loudspeaker are all within the boty of the instrument that is placed at the users ear. *The Hearing Aid picks up surrounding signal and noise. *In contrast the ALD microphone is placed at the source so it picks up the desired signal, reduceing the interference of background noise. *The signal is then transmitted to the receiver used by the listener. HOW DO ALDsTRANSMIT FROM THE SOURCE TO THE LISTENER? *”Hard Wired” is a wire from the receiver attache
