Glottalization Glottalization Glottalization is the complete or partial closure of the glottis during the articulation of another sound. Glottalization of vowels and other sonorants is most often realized as creaky voice (partial closure). Glottalization of obstruent consonants usually involves complete closure of the glottis; another way to describe this phenomenon is to say that a glottal stop is made simultaneously with another consonant. In certain cases, the glottal stop can even wholly replace the voiceless consonant. The term 'glottalized' is also used for ejective and implosive consonants; see glottalic consonant for examples. There are two other ways to represent glottalization of
Complete Vocal Institute sounds or had problems with their voice. The work formed the basis for the techniques Complete Vocal Institute currently uses and Cathrine Sadolin has continued the voice research together with physicians and acousticians. Cathrine Sadolin has been invited to speak in the voice conferences in Europe and USA since 1996. In 2007, she started to collaborate with consultant ENT Surgeon Julian McGlashan from Nottingham University Hospital. Their first joint research study was published in February 2007 on auditive research, where speech therapists had to determine which voice modes was used by listening to song samples. After that they cooperated to