Dictionary of Audiology
By Students’ Academy
Copyright@2011Students’ Academy
Smashwords Edition
Chapter 1
A
Adaptive Directional Microphones
Adaptive Directional Microphones refers to the directional microphone system which, when they are activated, can adapt themselves, based on the location of the noise.
Adaptive Feedback Cancellation
Adaptive Feedback Cancellation refers to a digital process which creates a filter within the amplifier of the hearing aid. On account of this process any feedback the moment it is detected is cancelled, without reducing or altering the hearing aid's response. If the feedback is caused by a different or changing situation, the filter automatically changes.
ASP/AGC-Input
The full form of ASP is Automatic Signal Processing and the full form of AGC is Automatic Gain Control-Output. Reduction in the volume of a hearing aid is automatically caused, in response to sound which has exceeded a certain level. With the help of this processing system loud sounds are reduced after the amplifier.
ASP
The full form of ASP is the Automatic Signal Processing This circuit causes a decrease in the bass at high levels. It also refers to Bill Circuitry; it is often marketed under the trademark name "Manhattan" circuit. BILL circuitry is designed for the people who frequently find themselves in noisy environments, especially environments where low frequency noise is a constant factor. This circuit reduces the intensity of harsh and shrill sounds.
ASP
The full form of ASP is Automatic Signal Processing. It also refers to PILL circuitry. This type of circuitry is more versatile than TILL or BILL circuitries because it can be programmed by computer to automatically perform as a BILL circuit on one channel and a TILL circuit on another. The user can switch between circuits as listening environments change.
ASP
The full form of ASP is the Automatic Signal Processing. It also refers to TILL circuitry. TILL circuitry cause a decrease in the high frequency column at high levels. TILL circuitry is often marketed under the trademark name "K-AMP." TILL circuitry is intended for wearers who need more volume to hear the quiet sounds than they do for loud sounds. Harsh or shrill sounds are not amplified, but pass through the circuit unaltered.
Audiogram
Audiogram refers to a graphical representation of a person's auditory sensitivity to sound.
Audiology
Audiology is the science or study of hearing.
Audiometry
Audiometry refers to the measurement of hearing.
Aural
Aural pertains to the ear or hearing.
Auditory Nerve
Auditory Nerve refers to a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea.
Automatic Directional Microphones
Directional microphone technology that is automatically engaged or disengaged without user direction.
ASP