Editing Place of articulation (section)

==Overview==
The human voice produces sounds in the following manner:<ref>{{Cite book |last=Titze |first=Ingo R. |url=https://www.worldcat.org/oclc/27897589 |title=Principles of voice production |date=1994 |publisher=Prentice Hall |isbn=0-13-717893-X |location=Englewood Cliffs, N.J. |oclc=27897589}}</ref>{{page needed|date=August 2018}}<ref>{{Cite journal |last=Titze |first=Ingo R. |date=January 2008 |title=The Human Instrument |url=https://www.scientificamerican.com/article/the-human-instrument |journal=Scientific American |volume=298 |issue=1 |pages=94–101 |doi=10.1038/scientificamerican0108-94 |pmid=18225701 |bibcode=2008SciAm.298a..94T |issn=0036-8733}}</ref>{{page needed|date=August 2018}}

#[[Air pressure]] from the [[human lung|lungs]] creates a steady flow of air through the [[vertebrate trachea|trachea]] (windpipe), larynx (voice box) and [[human pharynx|pharynx]] (back of the throat). Therefore, the air moves out of the lungs through a coordinated action of the diaphragm, abdominal muscles, chest muscles and rib cage. 
#The [[vocal folds]] in the larynx vibrate, creating fluctuations in air pressure, known as [[sound wave]]s.
#[[Acoustic resonance#Resonance of a tube of air|Resonances]] in the vocal tract modify these waves according to the position and shape of the lips, jaw, tongue, [[soft palate]], and other speech organs, creating [[formant]] regions and so different qualities of [[sonorant]] ([[voice (phonetics)|voiced]]) sound.
#Mouth radiates the sound waves into the environment.
#Nasal cavity adds resonance to some sounds such as {{IPA|[m]}} and {{IPA|[n]}} to give nasal quality of the so-called [[nasal consonants]].