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Acoustic rhinometry is a diagnostic measurement of cross sectional area and length of the nose and the nasal cavity through acoustic reflections. [1] It can be used to measure nasal anatomical landmarks, and nasal airway changes in response to allergen provocation tests.
However, such measurements allow only to detect in which side of the nose there is obstruction, not the location within the nasal cavity, which can be detected by acoustic rhinometry or endoscopy. Anterior rhinomanometry is more commonly used and it is often recommended for its easy technique.
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Other acoustic scientists advance understanding of how sound is affected as it moves through environments, e.g. underwater acoustics, architectural acoustics or structural acoustics. Other areas of work are listed under subdisciplines below. Acoustic scientists work in government, university and private industry laboratories.
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The following outline is provided as an overview of and topical guide to acoustics: . Acoustics – interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
Acoustic immittance audiometry - Immittance audiometry is an objective technique which evaluates middle ear function by three procedures: static immittance, tympanometry, and the measurement of acoustic reflex threshold sensitivity. Immittance audiometry is superior to pure tone audiometry in detecting middle ear pathology.
A man playing the đàn nguyệt in a performance in Paris. The đàn nguyệt shown here with two strings. Chánh Già's đàn kìm. The đàn nguyệt ( Vietnamese pronunciation: [ɗǎn ŋwiə̂ˀt] "moon-shaped lute", Chữ Nôm: 彈月) also called nguyệt cầm (Chữ Hán: 月琴), đàn kìm, is a two-stringed Vietnamese traditional musical instrument. [1]