![]() ![]() It will sing the same note back at you-the strings that have the same frequencies as your voice, are resonating in response to the forces from the sound waves that you sent to them. Sit in front of a piano sometime and sing a loud brief note at it while pushing down on the sustain pedal. Weber test - A hearing test using a vibrating tuning fork which is held at various points along the midline of the skull and face.Before the start of this section, it would be useful to review the properties of sound waves and how they are related to each other, standing waves, superposition and interference of waves. ![]() Rinne test - A hearing test using a vibrating tuning fork which is held near the ear and held at the back of the skull. Mastoid process - The protrusions of bone behind the ears at the base of the skull. One Prince St., Alexandria VA 22314-3357. ![]() Resources ORGANIZATIONSĪmerican Academy of Otolaryngology-Head and Neck Surgery, Inc. The volume of sound vibrations conducted through parts of the skull and face in the Weber test can indicate which ear may have a hearing loss. The Rinne test detects a hearing loss when a patient hears a louder and longer tone when the vibrating tuning fork is held against the mastoid bone than when it is held next to the ear. For the Weber test, the tone produced when the tuning fork is placed along the center of the skull, or face, sounds about the same volume in each ear. With the Rinne test, a person will hear the tone of the vibration longer and louder when the tuning fork is held next to the ear, rather than when it is held against the mastoid bone. There are no risks associated with the use of tuning forks to screen for hearing loss. If hearing loss is revealed during testing with tuning forks, the patient may require further testing to determine the extent of the hearing loss. No special preparation is required for a hearing test with tuning forks. Tuning forks of different sizes produce different frequencies of vibrations and can be used to establish the range of hearing for an individual patient. The patient is then asked to identify which ear hears the sound created by the vibrations. For this test, the stem or handle of the vibrating tuning fork is placed at various points along the midline of the skull and face. A second hearing test using a tuning fork is the Weber test. The patient is asked to determine which sound is louder, the sound heard through the bone or through the air. ![]() It is also held next to, but not touching, the ear, to cause vibrations in the air next to the ear. In the Rinne test, the vibrating tuning fork is held against the skull, usually on the bone behind the ear (mastoid process) to cause vibrations through the bones of the skull and inner ear. Two types of hearing tests with tuning forks are typically conducted. No special precautions are necessary when tuning forks are used to conduct a hearing test. PurposeĪ vibrating tuning fork held next to the ear or placed against the skull will stimulate the inner ear to vibrate, and can help determine if there is hearing loss. The vibrations produced can be used to assess a person's ability to hear various sound frequencies. Tuning forks, made of steel, aluminum, or magnesium-alloy will vibrate at a set frequency to produce a musical tone when struck. Hearing Tests with a Tuning Fork DefinitionĪ tuning fork is a metal instrument with a handle and two prongs or tines. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |