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"I can remember holding my face because of the ringing noise in my head, " she said.

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Tinnitus is a medical term used to describe a ringing or buzzing noise that people can hear permanently in one ear, both ears or in the head.

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Its exceptionally sophisticated 10-bit video digital signal processing provides for adaptive de-interlacing of both SD and HD sources, edge enhancement without ringing, and uniquely adaptive noise reduction, as well as extensive color and grey level calibration.

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