الفهرس 
Directionality in Hearing Aids
Perceptual Disadvantages of Directional Microphone:Only 14 pages are availabe for public view
 |  | from | 147 |  |  |
| | | from | 147 | | |
Abstract
Summary Speech recognition ability for an individual with hearing loss is a challenge for professionals in the field of Audiology, since speech is a part of daily life. The most frequent complaint of hearing-impaired persons is the inability to recognize and understand speech signals in noisy situations, which occur competitively in most communication scenarios. The problems arising from sensory deprivation can be minimized with the use of a hearing aid (HA), which provides audibility of the speech signal as well as other sounds, thereby enhancing communication abilities (Magni et al., 2005). Restoration of speech perception depends on the characteristics of the hearing loss of the individual. However, HA users also report various difficulties in noisy environments. Among these problems are speech understanding, discomfort with the noise intensity, and background noise (Palmer et al., 2006). The only proven method to improve speech understanding in noise is through the use of a directional microphone. Directional microphones work by suppressing the signal from the sides and/or rear of the wearer while retaining audibility for signals from the front. The underlying assumption is that users will be facing the person with whom they are talking and wish to perceive that signal in preference to other speakers or background noise (Wu et al., 2018). The majority of patients who go to hearing healthcare professionals have difficulty understanding conversation in background noise. So, speech- in-noise tests can be accurately used to assess hearing loss and amplification under conditions that are representative of the real world