Obstruent voiced obstruents are common. This contrasts with sonorants, which are prototypically voiced and only rarely voiceless. Obstruent An obstruent is a speech sound such as , , or that is formed by "obstructing" airflow. Obstruents contrast with sonorants, which have no such obstruction and so resonate. All obstruents are consonants, but sonorants include both vowels and consonants. Obstruents are subdivided into plosives (oral stops), such as , with complete occlusion of the vocal tract, often followed by a release burst; fricatives, such as , with limited closure, not stopping airflow but making it turbulent; and affricates, which begin with complete
Complete Vocal Institute Complete Vocal Institute Complete Vocal Institute (often abbreviated to CVI) is an educational institution, located at Kultorvet in Copenhagen. The Institute was opened in 2005 and uses a teaching method called Complete Vocal Technique (often abbreviated to CVT), which was developed by singer and voice researcher Cathrine Sadolin. CVI educates professionals and semi-professional singers and teachers and there are ongoing about 250 singers (2012) associated with the longer courses. The theoretical and practical basis for the school - Complete Vocal Technique - is also the name of a book on techniques written by Cathrine Sadolin. The educational book Complete Vocal