Modal voice in the context of "Sonorant"

In linguistics, voicelessness is the property of sounds being pronounced without the larynx vibrating. Phonologically, it is a type of phonation, which contrasts with other states of the larynx, but some object that the word phonation implies voicing and that voicelessness is the lack of phonation.

The International Phonetic Alphabet (IPA) has distinct letters for many voiceless and modally voiced pairs of consonants (the obstruents), such as [p b], [t d], [k ɡ], [q ɢ], [c ɟ], [f v], and [s z]. Also, there are diacritics for voicelessness, U+0325 ◌̥ COMBINING RING BELOW and U+030A ◌̊ COMBINING RING ABOVE, which is used for letters with a descender. Diacritics are typically used with letters for prototypically voiced sounds, such as vowels and sonorant consonants: [ḁ], [l̥], [ŋ̊].In Russian use of the IPA, the voicing diacritic may be turned for voicelessness, e.g. ⟨ṋ⟩.

In linguistics, creaky voice (sometimes called laryngealisation, pulse phonation, vocal fry, or glottal fry) refers to a low, scratchy sound that occupies the vocal range below the common vocal register. It 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. They normally vibrate irregularly at 20–50 pulses per second, about two octaves below the frequency of modal voicing, and the airflow through the glottis is very slow. Although creaky voice may occur with very low pitch, as at the end of a long intonation unit, it can also occur with a higher pitch. All contribute to make a speaker's voice sound creaky or raspy.

Bai (Bai: Baip‧ngvp‧zix; simplified Chinese: 白语; traditional Chinese: 白語; pinyin: Báiyǔ; lit. 'white language') is a Sino-Tibetan language spoken in China, primarily in Yunnan Province, by the Bai people. The language has over a million speakers and is divided into three or four main dialects. Bai syllables are always open, with a rich set of vowels and eight tones. The tones are divided into two groups with modal and non-modal (tense, harsh or breathy) phonation. There is a small amount of traditional literature written with Chinese characters, Bowen (僰文), as well as a number of recent publications printed with a recently standardized system of romanisation using the Latin alphabet.

The origins of Bai have been obscured by intensive Chinese influence of an extended period. Different scholars have proposed that it is an early offshoot or sister language of Chinese, part of the Loloish branch, or a separate group within the Sino-Tibetan family.