Absolute threshold of hearing decreased by perceiving a previous sound

Effect of sound classification by neural networks in the recognition of human hearing

In this paper, we focus on two basic issues: (a) the classification of sound by neural networks based on frequency and sound intensity parameters (b) evaluating the health of different human ears as compared to of those a healthy person. Sound classification by a specific feed forward neural network with two inputs as frequency and sound intensity and two hidden layers is proposed. This process...

Hearing threshold evaluation of dentistsin Babol (North of Iran)

Introduction:Noise in dental offices is one of the risk factors in the workplace. One of the major effects of noise is hearing loss. This study aimed to determine the effects of noise on hearing thresholds of dentists of Babol city. Methods:This descriptive analytical cross-sectional study was performed on 40 dentists in Babol City (as case group) and 40 office workers (as control group). He...

Sound Attenuation by Hearing Aid Earmold Tubing

In this study we model the sound attenuation properties of a hearing aid earmold tube. The model includes thermoviscous acoustic effects and it couples structural vibrations to the external acoustic field. Moreover, the finite element domain is coupled at two boundaries with an electroacoustic model of a hearing aid and an acoustic 2-cc coupler.

Of Sound and Hearing

A Comparative Study of Hearing Threshold in Women With and Without Iron Deficiency Anemia

Background: Iron Deficiency Anemia (IDA) is the most common form of anemia. Understanding the relationship between IDA and hearing loss may provide new insights into managing hearing loss. Objective This study aimed to investigate the relationship between IDA and hearing loss in women aged 12-45 years referred to Amir Al-Momenin and Al-Zahra hospitals in Rasht City, Iran. Methods: In this cas...