查看“︁鼻化度”︁的源代码

'''鼻化度'''是测量浊声言语中腭咽开合度的度量指标<ref>{{Cite web|title=A New Method for the Measurement of Nasalance - Mask Based Nasometry|url=http://www.rothenberg.org/Nasalance/Nasalance.htm|access-date=2023-03-04|website=www.rothenberg.org|archive-date=2023-03-27|archive-url=https://web.archive.org/web/20230327194458/https://www.rothenberg.org/Nasalance/Nasalance.htm|dead-url=no}}</ref><ref>{{Cite journal |last=Fletcher |first=Samuel G. |last2=Sooudi |first2=Iradj |last3=Frost |first3=Sharon D. |date=1974-09-01 |title=Quantitative and graphic analysis of prosthetic treatment for “nasalance” in speech |url=https://www.thejpd.org/article/0022-3913(74)90032-8/abstract |journal=Journal of Prosthetic Dentistry |language=en |volume=32 |issue=3 |doi=10.1016/0022-3913(74)90032-8 |issn=0022-3913 |pmid=4373571}}</ref>。其一般计算公式如下：

<math>\dfrac{A_n}{(A_m+A_n)} \times 100\%</math>

其中，<math>A_m</math>代表口腔声能的振幅，<math>A_n</math>代表鼻腔声能的振幅。

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该术语最早出现于Fletcher and Frost (1974)<ref>{{Cite journal |last=Fletcher |first=Samuel G. |last2=Sooudi |first2=Iradj |last3=Frost |first3=Sharon D. |date=1974-09-01 |title=Quantitative and graphic analysis of prosthetic treatment for “nasalance” in speech |url=https://www.thejpd.org/article/0022-3913(74)90032-8/abstract |journal=Journal of Prosthetic Dentistry |language=en |volume=32 |issue=3 |doi=10.1016/0022-3913(74)90032-8 |issn=0022-3913 |pmid=4373571}}</ref><ref>{{Cite book|chapter=Clinical measurement of speech and voice|url=http://worldcat.org/oclc/988728676|publisher=Delmar Cengage Learning|date=2010|isbn=1-56593-869-0|oclc=988728676|first=Baken, R. J. (Ronald J.),|last=1943-|title=Clinical measurement of speech and voice}}</ref>。鼻化度现已可以通过使用多种仪器测量算得<ref>{{Cite web|title=WEVOSYS Home English|url=https://www.wevosys.com/|access-date=2023-03-04|website=www.wevosys.com|archive-date=2023-03-29|archive-url=https://web.archive.org/web/20230329103606/https://www.wevosys.com/|dead-url=no}}</ref><ref>{{Cite web|title=PENTAX Medical|url=https://www.pentaxmedical.com/pentax/static/errorpage/access_denied_page.html|access-date=2023-03-04|website=www.pentaxmedical.com|archive-date=2023-10-19|archive-url=https://web.archive.org/web/20231019175705/https://www.pentaxmedical.com/pentax/static/errorpage/access_denied_page.html|dead-url=no}}</ref>，具体计算方法因使用的仪器而略有差异。此外，不同的仪器隔绝口鼻声能的方式亦有差异，但是目前尚无研究证明这些差异会给相关的底层物理变量（例如，腭咽开合度）带来什么样的影响。

== 另见 ==

* [[鼻音化]]

== 参考文献 ==
<references />
[[Category:鼻音化]]
[[Category:人聲]]