The third tone is a rhythmic vibration of the vocal cords that occurs in a person when reproducing the syllable “ti” and differs from the pronunciation of the second tone. This tone is considered intermediate between the first and second.
During the pronunciation of the third tone, pronounced vibration is noted, accompanied by a short trembling sound. In some cases, even the voice vibrates somewhat, and its sound may be somewhat similar to hiccups. Often the third tone is formed by adding the first two tones. This occurs due to the alternation of contractile activity of the vocal rings and the interventricular septum or neck in large men (for example, in a Turk). In women, the tone is absent altogether or appears slightly when adding a sound at the end of a word.
The third tone is an important tool in phoniatric practice. For various speech diseases, it allows one to identify defects in the innervation of the vocal and other voice-forming parts of the larynx. The diagnosis of pathology is also helped by changes in the patient’s voice when there are changes in her or her partner’s voice at the time of their quarrel or scandal in everyday life. The third tone noticeably weakens or disappears altogether. There is also a tone of the third ventricle of the brain, unlike the third tone, it does not affect the human voice and cords in any way.