The Hearing Dictionary Online - X, Y, Z

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XYZ

Xanthomatosis - a metabolic disorder marked by deposits of yellow or orange nodules in the skin. It is sometimes associated with tinnitus.

Y-cord - a hearing aid cord that divides the electrical impulse from one transmitter to two receivers. Its modified form is known as a V-cord. syn: pseudobinaural

Zero Hearing Level (see also Audiometric Zero) - (1) the measurement at which speech can no longer be understood when it is heard. The accepted standard established by ASA (American Standards Association) for the SRT (speech to reception threshold). This was set at a level of 22 decibels based on laboratory experiments with normal hearing subjects. (2) The range of thresholds for speech from 0 to 25 dB (ISO).

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HearingCentreOnline.com would like to thank and acknowledge Starkey Labs and Siemens Hearing for their generous contributions of some of the definitions in this online dictionary of hearing terms.

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