Barnett-chao Totally Explained

Everything about The Barnett-chao totally explained

The Barnett-Chao (abbreviated here as B-C) system of romanization for writing Cantonese is based on the principles of the Gwoyeu Romatzyh system (abbreviated as GR) for writing Mandarin Chinese in the Latin alphabet. The Barnett-Chao system has had a limited following and appears almost exclusively in Y.R. Chao's Cantonese Primer. The two reasons for its lack of widespread adoption despite the inherent benefits of tonal spelling are that it 1) requires a large number of roman letters to represent each toned syllable, and 2) is even more complex than the already challenging GR system, as it also encodes the high and low registers of Cantonese as well as the variant tones (變調) of spoken Cantonese.

Description

Like GR spelling, B-C spelling uses contrasting unvoiced/voiced pairs of consonants to represent aspirated and unaspirated sounds. B-C also uses single versus double vowels letters to represent certain short + high versus long + low final vowels even in open syllables where the contrast doesn't exist: buk, buut, baa, and different letters to represent the contrast in other cases: sek, sin. Some vowels are only long and don't use doubling to represent length: ea, o, y.
The Cantonese high and low pitch registers are indicated by inserting -h- or -r- between the initial and final: bhat, brat. Medium pitch register has no insert, and is considered the basic form: baa.

Basic forms

The following two tables list the B-C spellings of initials and finals with their corresponding IPA values.

Initials

b [p]	p [pʰ]	m [m]	f [f]
d [t]	t [tʰ]	n [n]	l [l]
g [k]	k [kʰ]	ng [ŋ]	x [h]
q [ʔ]
z [ts]	c [tsʰ]	s [s]
gw [kw]	kw [kʰw]	j [j]	w [w]

Finals

aa [a]	aai [ai]	aau [au]	aam [am]	aan [an]	aang [aŋ]	aap [ap]	aat [at]	aak [ak]
	ai [ɐi]	au [ɐu]	am [ɐm]	an [ɐn]	ang [ɐŋ]	ap [ɐp]	at [ɐt]	ak [ɐk]
ea [ɛ]	ei [ei]				eang [ɛŋ]			eak [ɛk]
i [i]		iu [iu]	im [im]	in [in]	eng [ɪŋ]	ip [ip]	it [it]	ek [ɪk]
o [ɔ]	oi [ɔi]	ou [ou]		on [ɔn]	ong [ɔŋ]		ot [ɔt]	ok [ɔk]
uu [u]	uui [ui]			uun [un]	ung [ʊŋ]		uut [ut]	uk [ʊk]
eo [œ]		eoi [ɵy]		eon [ɵn]	eong [œŋ]		eot [ɵt]	eok [œk]
y [y]				yn [yn]			yt [yt]
			m [m̩]		ng [ŋ̩]

The finals m and ng can only be used as standalone nasal syllables.

Tones

There are nine normal tones in six distinct tone contours and two modified tones in Cantonese.
   B-C spelling represents the normal tones using the letters h and r before and after the main vowel of the final as well as spelling changes of certain finals as described below.
   Before the vowel of the final, h indicates that the start of the tone is high; after the vowel of the final, h indicates that the tone falls, however a falling contour is also indicated by a change in spelling in some finals: Vi > Vy, Vu > Vw, ng > nq, n > nn, m > mm for example saan "disperse" and shaann "mountain", sou "number" and show "whiskers", sai "small" and shay "west".
   Before the vowel of the final, r indicates that the start of the tone is low; after the vowel of the final, r indicates that the tone rises, however a rising contour is also indicated by a change in spelling in some finals: Vi > Ve, Vu > Vo for example sai "small" and sae "wash", sou "number" and soo "count".
   The modified tones representing high-flat (高平) and modified mid-rising (高升) when the original tone isn't mid-rising are indicated by adding an 'x or v after the end of the syllable. High-register syllables that end in a stop (entering tone) are already considered high-flat and can't take x.

No.	Description	B-C examples
1	high-falling	shih	shinn
2	mid-rising	sir	sirn
3	mid-flat	si	sin
4	low-falling	srih	srinn
5	low-rising	srir	srirn
6	low-flat	sri	srin
7	high-entering			shek
8	mid-entering			sit
9	low-entering			srek
10	high-flat	shihx	shinnx
11	mid-rising modified	shihv	shinnv

Examples

Traditional	Simplified	Yale Romanization with Tone Marks	Barnett-Chao Romanization
		gwóng jàu wá	Gworngzhawwraav
		yuht yúh	jrytjryr
		néih hóu	nree xoo

Further Information

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