Noise, Enzymes, and Hearing
نویسندگان
چکیده
منابع مشابه
MILITARY AVIATION NOISE Noise-induced hearing impairment and noise protection
This research on military aviation noise was conducted because the personnel working with military aircraft were concerned about noise induced hearing damage. In addition, comprehensive data on hearing impairments and occupational exposure of military pilots in the Finnish Air Force was not available. Moreover, data on the effects of overflight noise of military jets was necessary for the evalu...
متن کاملHearing with Hearing Aids in Noise and Reverberation
Patients complain often about problems in communication, even with properly fitted hearing aids. These difficulties are often experienced in situation with a lot of noise or in reverberation. It seems naturally in cases of complaints to check the correctness of the fitting by real-ear measurements and to verify the expectations of the patient with regard to the hearing aid to exclude unrealisti...
متن کاملTHE EFFECT OF NOISE-INDUCED HEARING LOSS ON DENTISTS
This paper presents noise problems associated with the use of air-turbine drills in dental practice. Two hundred and fifty dentists (male and female) were randomly selected from the faculty of dentistry as well as the dentists who worked private in Tehran. The results indicated that the mean value of sound pressure level produced by the high-speed drills was 69.1 db. Most of the energy from...
متن کاملSpeech recognition in noise by hearing-impaired and noise-masked normal-hearing listeners.
A prevailing complaint among individuals with sensorineural hearing loss (SNHL) is difficulty understanding speech, particularly under adverse listening conditions. The present investigation compared the speech-recognition abilities of listeners with mild to moderate degrees of SNHL to normal-hearing individuals with simulated hearing impairments, accomplished using spectrally shaped masking no...
متن کاملCombined Active Noise Control and Noise Reduction in Hearing Aids
This paper presents a combined active noise control and noise reduction scheme for hearing aids to tackle secondary path effects and effects of signal leakage through the fitting. While such leakage contributions and the secondary accoustic path from the reciever to the tympanic membrane are usually not taken into account in standard noise reduction systems, they appear to have a non-negligible...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1960
ISSN: 0001-4966
DOI: 10.1121/1.1936404