The New York Record of Percentage Hearing Loss (NYMPH) is an audiometric test used to measure an individual's degree of hearing loss. It is administered by a qualified audiologist and is used to provide an objective assessment of a person’s hearing ability. The test is conducted in a soundproof booth and assesses the ability to detect sounds of various frequencies at different levels of intensity. The results are recorded on a chart and are expressed as a percentage of hearing loss. The NYMPH consists of three types of tests: pure tone audiometry, speech recognition, and acoustic reflex. Pure tone audiometry measures the ability to detect tones of various frequencies, while speech recognition tests measure the ability to understand spoken words. Acoustic reflex testing measures the response of the ear to loud sounds. The NYMPH is used to diagnose hearing loss, to determine the severity of the condition, and to monitor the patient's progress. It is also used to assess the effectiveness of hearing aids and other hearing devices. The results of the NYMPH are used to determine the best course of treatment for an individual's hearing loss.