Pressed voice, also called ventricular or harsh voice, is the production of speech sounds (typically vowels) with secondary epiglottal articulation. They involve the use of the ventricular folds (the false vocal cords) to damp the glottis in a way similar to what happens when a person talks while lifting a heavy load, or, if the sound is voiceless, like clearing one's throat. Listen to this article · (info) This audio file was created from the revision dated 2005-07-18, and does not reflect subsequent edits to the article. ... An epiglottal consonant is a consonant that is articulated with the aryepiglottal folds (see larynx) against the epiglottis. ... The space between the vocal cords is called the glottis. ...

When the epiglottal articulation becomes a trill, the vowels are called strident. In phonetics, a trill is a consonantal sound produced by vibrations between the articulator and the place of articulation. ... Strident vowels (also called sphincteric vowels) are strongly pharyngealized vowels accompanied by epiglottal trill, where the larynx is raised and the pharynx constricted, so that either the epiglottis or the arytenoid cartilages vibrate instead of the vocal chords. ...

There is no symbol for pressed vowels in the IPA. Diacritics seen in the literature include the under-tilde used for creaky voice, the double under-tilde used as the ad hoc diacritic for strident vowels, and the strong articulation diacritic of the Extended IPA. IPA may refer to: The International Phonetic Alphabet or India Pale Ale ... Creaky voice (also called laryngealisation or vocal fry, especially in the US), is a special kind of phonation in which the arytenoid cartilages in the larynx are drawn together; as a result, the vocal folds are compressed rather tightly, becoming relatively slack and compact, and forming a large, irregularly vibrating...

The Bai language has both pressed and strident vowels as part of its register (phonology) system, but they are not contrastive. Bai (白族; pinyin: bái zú) is one of the 56 ethnic groups officially recognized by the Peoples Republic of China. ...