On This Page. Viral meningitis is the most common type of meningitis, an inflammation of the tissue that covers the brain and spinal cord. It is often less severe than bacterial meningitis, and most people get better on their own (without treatment).
Sound level calibration is a prerequisite to properly measuring hearing loss. Our hearing test is the only online hearing test we know of that offers you a way to calibrate your headphones or speakers, giving you the opportunity to reliably estimate your hearing loss. Use our test with confidence to confirm normal hearing, or a mild, moderate, or severe hearing loss. This test-like any other hearing test-requires a decent pair of headphones (good speakers will work too, although headphones are preferred), and a quiet environment.
Auditory Brain Stem Response (ABR) Test: This test is used to evaluate the auditory brain stem (the part of the nerve that carries sound from the ear to the brain) and the brainâs response to sound. During this test, miniature earphones are placed in the ear and sounds are played. Band-Aid-like electrodes are placed along the babyâs head to detect the brainâs response to the sounds. If the babyâs brain does not respond consistently to the sounds, there may be a hearing problem.