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  2. Hearing range - Wikipedia

    en.wikipedia.org/wiki/Hearing_range

    Logarithmic chart of the hearing ranges of some animals [1] [2] Hearing range describes the frequency range that can be heard by humans or other animals, though it can also refer to the range of levels. The human range is commonly given as 20 to 20,000 Hz, although there is considerable variation between individuals, especially at high ...

  3. Audiogram - Wikipedia

    en.wikipedia.org/wiki/Audiogram

    The threshold of hearing is plotted relative to a standardised curve that represents 'normal' hearing, in dB(HL) (hearing level). They are not the same as equal-loudness contours , which are a set of curves representing equal loudness at different levels, as well as at the threshold of hearing , in absolute terms measured in dB(SPL) (sound ...

  4. Minimum audibility curve - Wikipedia

    en.wikipedia.org/wiki/Minimum_audibility_curve

    This is not the best threshold found for all subjects, under ideal test conditions, which is represented by around 0 phon or the threshold of hearing on the equal-loudness contours, but is standardised in an ANSI standard to a level somewhat higher at 1 kHz . There are several definitions of the minimal audibility curve, defined in different ...

  5. Pure-tone audiometry - Wikipedia

    en.wikipedia.org/wiki/Pure-tone_audiometry

    Pure-tone audiometry is the main hearing test used to identify hearing threshold levels of an individual, enabling determination of the degree, type and configuration of a hearing loss [1] [2] and thus providing a basis for diagnosis and management.

  6. Diagnosis of hearing loss - Wikipedia

    en.wikipedia.org/wiki/Diagnosis_of_hearing_loss

    The severity of a hearing loss is ranked according to ranges of nominal thresholds in which a sound must be so it can be detected by an individual. It is measured in decibels of hearing loss, or dB HL. The measurement of hearing loss in an individual is conducted over several frequencies, mostly 500 Hz, 1000 Hz, 2000 Hz and 4000 Hz. The hearing ...

  7. 7 Common Symptoms of Hearing Loss + Tests, Treatment ... - AOL

    www.aol.com/7-common-symptoms-hearing-loss...

    The symptoms of hearing loss in babies and children, however, are slightly different, and can be difficult to catch. For instance, a baby with hearing loss may not startle at loud noises.

  8. Absolute threshold of hearing - Wikipedia

    en.wikipedia.org/wiki/Absolute_threshold_of_hearing

    The two different methods produce different thresholds [1] [2] and minimal audible field thresholds are often 6 to 10 dB better than minimal audible pressure thresholds. [2] It is thought that this difference is due to: monaural vs binaural hearing. With minimal audible field both ears are able to detect the stimuli but with minimal audible ...

  9. Audiometry - Wikipedia

    en.wikipedia.org/wiki/Audiometry

    This level can vary for an individual over a range of up to 5 decibels from day to day and from determination to determination, but it provides an additional and useful tool in monitoring the potential ill effects of exposure to noise. Hearing loss may be unilateral or bilateral, and bilateral hearing loss may not be symmetrical. The most ...

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