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Steve Bett’s April, 1999, Simpl Speling Newsletter article 
Can we pin down the number of phonemes in English?
What is the minimum phoneme inventory for English?
This article became the inspiration for a much more detailed description of the problem of linguistic representation published in the Journal of the SSS.  Bett thought that there could be agreement on the number of pure phonemes. The later article cast doubt on this pointing out that different dialects of English may require different numbers of phonemes

In her letter to the Daily Express, Masha said: "We have 256 ways of representing the 45 basic sounds of our language." According to Jean,  Diane McGuinness (1998) gives the figure for American English as 42. In Alan Campbell's letter to The Press, he said, "There are 41 sounds in English and almost 600 ways of spelling them." In PV7, Steve said, "There are 41 significant speech sounds or phonemes. "In a phonemic or alphabetic system, these sounds would be spelled about 41 ways. "In the traditional English writing system they are spelled over 500 ways." Godfrey Dewey (1971) listed examples of 561 ways that 41 English sounds could be spelled. 

Allan asked, "Is there any way to pin down these statistics so there is some consistency in our public claims." The quick answer is probably not. While we can be specific about the minimum number of pure (uncombined) phonemes required to fully describe English speech [34], it is nearly impossible to reach agreement on the number of  phonemes when combinations are included. The key reasons for this are ... 

  (1) There is no obligation for a particular orthography to list any combination or blend.
  (2) An orthography that listed every combination or blend used in a transcription as a
       separate phoneme would have over 60 phonemes.

A phoneme is a range of sounds that are treated as equivalent by a speech community. It is the smallest unit of sound in the sound system of a language that can make a difference in meaning.  The phoneme inventory for English was charted over 100 years ago by Pitman, Ellis, Jones,  Sweet and others. They were all searching for the minimum number of phonemes required to graphically represent southern educated English speech sometimes referred to as BBC English or RP. They all agreed on 34 pure phonemes.  The number with combinations, however, varied from 40 to 50. 

The Longman Dictionary of American English  recognizes 45 phonemes (21v-24c).  Longman recognizes schwa but merges (a: and o) since American's do not make a distinction.  Longman does not single out the combinations [hw] and [yu:]. Five of Longman's phonemes are r-combinations. If these are eliminated, the number of significant phonemes is reduced to 40.  40 is the most common number of isolated sounds in popular notations and pronunciation guides   [see Spelriet, Unifon,  and  Truespel]
 
25 Vowel Phonemes for English - 12 pure
3 Notations:  IPA - Chkt Spl - Unigraf downsize
6 Chekt - short
6 Free - long
Difthongs
4-7 with schwa
æ..a. .a a:.a..q ai.'y.I a'.arqr |ai' 'yrIr
at, ax, ask,  cat alms, want, watch eye, ice, bite are, car    |  ire, fire
e  .e .e 3:.'r..R ei..ei .A e'..er .er
edge, edit, elbow her, girl, skirt, urban ace, ape, vein air, care, there, barely
i ...i. ..  i i: . i..E oi ..oi  . Q i:' .  ir   .ir
it, in, index, ill eel, east, mere, very oil, boy, loyal ear, fear, deer, pier
o turned ao. q o: turned c .o.o 'u .o'.O or ..or .or
ox, otter, cot, pot awe, call, cost, loss,  oh, oat, low for, four, floor, more
u ..u. ..c .J u: .u . .C  V ju .iu.U ju'..iur .Ur
hook, put, would ooze, zulu, zoo, duty you, few, fuse your,  sure |  tour, poor
L  .u'. u 'turned e .a' .u au.auM auc .aur Mr
up, cut,a'bu't a'kUt ago, sofa, atom, silent out, down, cow our, flower, power
IPA's turned e, a, v, and c are unavailable in ASCII and Latin-1
Darker shaded cells not members of Jones' minimum phoneme set
Chart as Grahic  IPA chart
The 12 pure vowels are shown in the first two columns.  The first notation is IPA -International Phonetic Alphabet. The 2nd is Chekt Speling. CKS marks the checked vowels with a dot contractor instead of a colon extender. Since checked vowels are always follwed by a consonant the dot does not get confused with punctuation. White cells indicate phonemes that are sometimes merged.

The first two columns in the chart list the 12 pure vowels (6 checked - 6 free). Chekt vowels are always short and always followed by a consonant.  Descriptive orthographies include all 12 pure vowels. Pragmatic notational systems, such as Unigraf, may merge similar sounding phonemes such as the central vowels.  In Unifraf and Truespel notations, the lower case  u refers to both /L/ and /'/ and the open back vowel [ah] is associated with one symbol rather than two [a and o].    [o. and a:] = q in Unigraf and aa in Truespel.

Almost everyone agrees that the consonant combinations tsh [ch] and dzh [j] and the diphthongs ei ai ou au and oi are essential.  When these 7 sounds are added to the 12 pure vowels and 22 pure phonemes, the total number of essential phonemes climbs to 41.

Sweet and Jones add 4 schwa combinations yielding 21 essential vowels and a phoneme inventory of 45. In their transcriptions Jones and Sweet used more than the 45 phonemes found in their inventory. Their list did not include combinations with consonants [ju] or triphthongs [ai@ and au@].  Chekt Spelling adds [iu] and 3 more schwa combinations to bring the total number of vowels to 25 and the total number of phonemes to 50. 

The minimum number of pure phonemes required to accurately transcribe English speech is 34 (12 vowels + 22 consonants). Pragmatic orthographers have frequently chosen to merge [a:/ o],  [u/shwa], and [th / dh] reducing the number of phonemes by 3.  TrueSpel and Globish also ignore [ng].  With these phoneme mergers, the number of symbols required drops to 30. 

Eliminating any pure vowel tends to distort the description of RP and most other variants of English. However, a carefully pruned 30 phoneme version of English would still be intelligible. 

A complete broad representation of spoken English requires 34 pure phonemes.  When commonly used combinations such as J, Ch, ei, ai, ou, au, and oi are added, the number of essential phonemes (not counting R-combinations) in a descriptive orthography is 41. 



References
Article in JSSS
Sweet


(end)        back to top           652 words

Sample Transcriptions
Response to the claim that phonemic representation is next to impossible and that there can be no agreement on the number of pure phonemes. 

It is true that different dialects of English have different phoneme counts.  This does not preclude the development of a broad notation for all dialects.  A sound that is phonemic in one dialect but not in another would have to be included.  American English rhymes bother and father making it possible to merge a: and o in pronunciation dictionaries for American English. 

 http://hawk.hama-med.ac.jp/dbk/new_romaji.html


 

References

1. http://pages.whowhere.com/community/sbett/dewey.html Godfrey Dewey's frequency studies

2. http://pages.whowhere.com/community/sbett/Span-dif.html Spanish vowel combinations

3. http://pages.whowhere.com/community/sbett/sweet.html Henry Sweet's broad romic.

4.http://victorian.fortunecity.com/vangogh/555/sitemap-l.html Index of spelling sites

5. http://pages.whowhere.com/community/sbett/alternota.htmlAlternate notations for English

6.. http://www.awl-elt.com Longman's Pronunciation Guide for English

7. Abercrombie's book shows how variable phonemes are even for linguists.

8.http://pages.whowhere.com/community/sbett/map-IPA.html Globish and other reform orthographies. The phoneme inventory.

9.http://victorian.fortunecity.com/vangogh/555/sweet-short.html

10.http://victorian.fortunecity.com/vangogh/555/globish.html more on Globish.

longer version
Spelling on the Net with Steve Bett
Can we pin down
the number of phonemes in English?
What is the minimum phoneme inventory for English speech?

In her letter to the Daily Express, Masha said: "We have 256 ways of representing the 45 basic sounds of our language." According to Jean,  Diane McGuinness (1998) gives the figure for American English as 42. In Alan Campbell's letter to The Press, he said, "There are 41 sounds in English and almost 600 ways of spelling them, and nearer 1000 rules ..to try to explain it." In PV7, Steve said, "There are 41 significant speech sounds or phonemes. In a phonemic or alphabetic system, these sounds would be spelled about 41 ways. In the traditional English writing system they are spelled over 500 ways." Godfrey Dewey (1971) listed examples of 561 ways that 41 English sounds could be spelled.1

Allan asked if there is any way to pin down these statistics so there is some consistency in our public claims. The quick answer is probably not. While we can be relatively specific about the minimum number of pure (uncombined) phonemes required to fully describe English speech [34], it is nearly impossible to reach exact agreement on the number of phonemes when combinations are included. 

  • There is no obligation for a particular orthography to list any

  • combination or blend.
  • An orthography that listed every combination or blend used in a

  • transcription as a separate phoneme would have over 60 phonemes.2
What is a phoneme?  It is not the same as a letter or symbol although letters can represent phonemes.  As illustrated below, different letters can represent the same phoneme.  This is actually rather frequent in traditional English spelling where there are over 500 ways to spell less than 50 phonemes. 

As the prefix  [phon] suggests, a phoneme has something to do with sound.  Since sound is continuous and phonemes are imagined to be discrete sound segments, there are a range of articulations that will be interpreted as an instance of the phoneme. Phonetically distinctinct sounds can be categorized as instances of the same phoneme [see pie and spy below]. 

 
Same Phoneme Different Phoneme
bill      /bil/ 
Bill     /bil/
pill     /pil/ 
dill     /dil/
phlox    /floks/ 
flocks   /floks/
pill     /pil/ 
pal     /pal/
pie   /pai/ 
spy  /spai/
R & L are not distinct phonemes in Japanese red   rare  /reir/
led    rail   /reil/
Test: At least one contrasting pair where a difference in sound makes a difference in meaning abbot   / aeb-t / 
abut     /-bLt /
In English, the /p/ sound is a phoneme because it is the smallest unit of sound that can make a difference of meaning if, for example, it replaces the initial sound of bill, till, or dill, making the word pill.  The vowel sound of pill is also a phoneme because its distinctness in sound makes pill, which means one thing, sound different from pal, which means another. Two different sounds, reflecting distinct articulatory activities, may represent two phonemes in one language but only a single phoneme in another. Thus phonetic r and l are distinct phonemes in English, whereas these sounds represent a single phoneme in Japanese, just as ph and p in pie and spy, respectively, represent a single phoneme in English although these sounds are phonetically distinct. 

A phoneme is usually defined as the smallest unit of sound (or speech) that can make a difference in meaning.  To test of whether or not a particular sound is a phoneme one must find at least one contrasting pair.  The test for schwa might be the following contrasting pairs: abbot / abut.  [ab-t  /-but

A phoneme is a range of sounds that are treated as equivalent by a speech community. Most acoustical differences between speakers are ignored which is what makes it possible to communicate across dialects and accents. A narrow phonetic transcription of speech distinguishes differences in regional speech patterns. A broad transcription, attempts to ignore these differences. 

Each language has its own inventory of phonetic differences that it treats as phonemic-that is, as necessary to distinguish meaning. For practical purposes, the total number of phonemes for a language is the least number of different symbols adequate to make an unambiguous graphic representation of its speech that any native could read if given a sound value for each symbol, and that any foreigner could pronounce correctly if given additional rules covering nondistinctive phonetic variations that the native makes automatically. For convenience, each phoneme of language may be given a unique symbol.  This is what is done here to indicate a phoneme inventory for English.  . 

The phoneme inventory for English was charted over 100 years ago by Pitman, Ellis, Jones, and Sweet.3 They were all searching for a way to identify and graphically represent the minimum number of phonemes in educated southern English speech sometimes referred to as BBC English or RP (received pronunciation). They all agreed on the number of pure phonemes [34] and were close to agreeing on the number of significant phonemes including blends and combinations [45 ± 4]. 

According to the linguists, the minimum number of significant sounds was between 41 and 48 for RP. Most orthographers and spelling reformers, however, have been content to work with 39 to 41 phonemes. Orthography is a pragmatic technology, not science. It is more important to "keep it simple" than to be precise.4

Longman's pronunciation dictionary recognizes 45 phonemes (21v-24c).5  Longman recognizes schwa but merges (a: and o). [The Truespel and Spelwel notations also merge [a:] and [o] but ignore schwa.6   Longman does not single out the combinations [hw] and [yu:]. Five of Longman's phonemes are r-combinations. If these are eliminated, the number of significant phonemes in Longman's pronunciation guide is reduced to 40. 
 
Thu Truespel Alfubet - 40 grafeemz: 17v-23c
a
ae
au
ch
e
ee
er
ash, at
aceaes
awau
boot buet
chek
dog daug
elboe
eeeel
urn ern
flag
i
ie
j
air
goat go't
horse
in  it
ice ies
jaw jau
kickik
leg levul
mountin
nose noez
care kair
aa
oe
oo
ou
oi
sh
odd  aad
oaoet
hook pool
out  cou
oil  boi
pipe pyp
roar ror
snake
shake shaek
tip
th
tth
u
ue:
yue
w
zh
the
thy thie
thug tthug
thigh tthie
up up
abut ubbut
ooze uez
shoot shuet
use
yuez
valve
valv
wave
waev
year yeer
yard yaard
azure
azhyur
buzz buz
zigzag
 Background Colors: yellow: 16 vowels and diphthongs + yue. brown background: 23 consonants

In most notations, r-combinations are problematic. In the Chekt Spelng phoneme chart, one of the few notations with accurate combinations, all 7 are included. The extra vowels make the CCS chart symmetrical (24v-24c). 

It is usually the free vowel (not the checked vowel) that is combined with R.  Most notations substitute the symbol for the checked vowel.  In Nu Folik, a:r, eir, i:r, o:r, u:r are simplified to ar, air, eer, or, and oor.  Hence if the notation used [au] to represent the vowel in "awe", then "or" would be spelled [aur].  Similarly "are" should be spelled [aar]. 

The first two columns in the chart list the 12 pure vowels (6 chekt, 6 free). Chekt vowels are always short and always followed by a consonant.  Descriptive orthographies include all 12 pure vowels. Pragmatic notational systems may merge similar sounding phonemes such as the central vowels [/^] [a' and u'] or the back vowels [o. and a:]. The white (unshaded) cells in the chart indicate possible mergers. As shown above, Unigraf uses [u] and [q] to denote these mergers. *upstart = upstqrt. 

No diphthong or vowel combination needs to be singled out as a distinct phoneme. Jones and Sweet listed 5 diphthongs and 4 schwa combinations. In their transcriptions they used more combinations than found in their phoneme list. Their list did not list combinations with consonants [ju] or triphthongs [aiand au].7

Orthographies do not have to single out a consonant combinations such as [dzh] or [j] as a distinct phoneme. However, most do. [] and [ð] are pure phonemes but are not distinguished by the traditional orthography [TO]. For this reason, some pragmatic orthographies also ignore this distinction. 
When the 12 pure vowels are added to the 22 consonants (that are not combinations such as [j] and [ch]), the number of unblended sounds comes to 34. (Pragmatic orthographers may dispute the necessity of including the [th/ dh], [a:/ o], or [u/ schwa] distinction or an [ng] phoneme.) 

Almost everyone agrees that the consonant combinations tsh[ch]and dzh[j]and the diphthongs ei ai ou au and oi are essential. This brings the total number of essential phonemes to 41. Sweet and Jones add 4 schwa combinations yielding 21 essential vowels. This brings their phoneme inventory to 45. New Spelling adds [ue].  Chekt Spelling adds [iu] and 2 more schwa combinations to bring the total number of vowels to 24 and the total number of phonemes to 48. With [yr as in *ire] and [hw as in *when] the total would balloon to 50. Ian's SaundSpel adds an [e:] phoneme between e and ei to provide a more comfortable way to transcribe "barely" [beeli]. Jones used [e:] for the Scottish dialect but did not use it for RP. 

The minimum number of pure phonemes required to accurately transcribe English speech is 34 (12 vowels + 22 consonants). Pragmatic orthographers have frequently chosen to merge [a:/ o],  [u/shwa], and [th / dh] reducing the number of phonemes by 3.  TrueSpel and Globish also ignore [ng]. 

Eliminating any pure vowel tends to distort the description of RP and most other variants of English. However, a carefully pruned 30 pure phoneme version of English would still be intelligible. To rationalize the distortions caused by the mergers and simplifications, truncated notations such as Globish often claim to be a unique dialect and not English. Thru such measures as merging th/dh, o/a, u/, and eliminating [ng], the total number of phonemes with combinations could be kept below 38. 

A complete broad representation of spoken English requires 34 pure phonemes.  The minimum number of essential phonemes (not counting R-combinations) in a descriptive orthography is 41



34 pure phonemes
48 Grapheme Phoneme Correspondences
6x8 chart (24 vowels + 24 phonemes).  Light (white) cells = 12 pure vowels & 22 pure consonants
Remove the 7 R-combinations and the number of phonemes is reduced to 41.


 


Notes & References
(if there is no www lised below, use this prefix to access URLhttp://pages.whowhere.com/community/sbett/)

1. http://pages.whowhere.com/community/sbett/dewey.html Lists the results of Godfrey Dewey's analysis the various ways that 41 basic English speech sounds are spelled in (1) an abridged dictionary and (2) in 100,000 words of actual writing. The information in this html document is drawn from Dewey's two books English Spelling (1971) and Relative Frequency of English Spellings (1970). See the bibliography on spelling at spel-bib.html. If you divide 461 spellings by 41 phonemes, it yields an average of 13.7 different spellings per phoneme.

2. Span-dif.html Spanish vowel combinations in several notations: interspel, nu folik, truespel, menu-spel, etc.

3. b-romic..html Henry Sweet's broad romic.

4. "Keep it Simple" is a dictum championed by Valerie Yule and others. See pidjin.html By definition, a broad diaphonic transcription is not precise - it is not meant to capture dialects. Such an orthography is designed to be an easily learned communication tool.  It is not an instrument for precise linguistic description.

5.. http://www.awl-elt.comLongman's Dictionary of American English (1997) lists 45. According to Chris Upward, The British edition lists 46 for American and 48 for RP.

6. alternota.html Alternate notations for English describes Nue Speling, Truespel, and ALC Fonetic.  See also map-IPA.html.

7. The thesis of Abercrombie's short book is that there is no official IPA notation for English.  He shows the variation in the schemes and transcriptions of Daniel Jones, who contributed two systems, and five other linguists. 99% of the variation was in symbol selection (grapheme correspondences) rather than the phoneme inventory.

8.map-IPA.html Globish, New Spelling, Fonetic, Broad Romic and other reform orthographies. Notations mapped on to the IPA phoneme inventory.  There are also web pages on each of these notations which have been listed in this column before. There is one new one for Globish at globish.html .



References

Dewey, Godfrey. 1971.  English Spelling: Roadblock to Literacy. Columbia University
Dewey, Godfrey. 1970.  Relative Frequency of English Spellings Columbia University
Jones, Daniel, 1950. The Pronunciation of English Cambridge: Cambridge University Press
Jones, Daniel. 1982. The Pronunciation of English Glencoe, Freepress
Jones, Daniel. 1970.  The Phoneme
Longman. 1997.  Dictionary of American English Addison-Wesley Longman, NY, Esses
McGuinnes, Diane 1998. Why Your Child Can't Read and What You Can Do About It. Glencoe: FreePress
Pike, Kenneth L. 1948. Phonemics:  A technique for reducing language to writing, ILC
Pitman, James & John St.John.  1969.  Alphabets and ReadingPitman
Sweet, Henry.  1900. The Sounds of English  Oxford Univeristy Press
Wells, John. 199-.  Longman's Pronunciation Dictionary, Addison-Wesley-Longman
Wijk, Axel. 1960 Rules for the Pronunciation of the English Language, Oxford University Press
 

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spell-sitemap-L    spelling links       Go to Short Version of Phoneme Inventory


Discussion

Paul saw all ore costs increasing

Phonemic transcriptions   This phrase has three spellings of /o:/ in TO, one in phonemic notation
po:l so: o:l o:r co:sts Inkri:sIng  (Broad Romic) o: usually represented with a turned c.
Pol so ol or costs i.nkrisi.ng (CKS
Pol so ol or costs incrising. (Spanglish)  ambiguous i.
Pool soo ool oo kosts inkrjsiq. (SS) 
Pol so ol or kosts inkrEsiG  (Unigr@f
Pol so ol or costs increesing (ELEKTO)  (i: = ee, k=c) 
Paul saw all or causts increesing  (RES) 
Paul sau aul or kausts increeseeng  (Truespel
 

costs does not contain either a long O or a short o.  It is an extended o that is often represented as a turned c.  kcsts
 

He bought the car she took around the world.

Phonemic transcriptions
hi: bo:t ð ka:r Si: tuk raund ð  w3:ld  (Broad Romic) 
Hi bot x car shi tu.k a'raund x w'rld. (CKS) 
Hi bot x car 5i tu.k a'raund x w'rld  (CKS with numbers as phonograms 5 = sh) 
Hi bot the car shi twk araund the wrld. (Spanglish)
hi bot d' car zi tuk arand d' w'rld. (Iqliz]
hj boot dxi car sj tuk araund dxi w3ld (SS) 
Hee baut thu kaar shee took uround thu werld.  (Truespel)
hE bot x cqr SE tck  ^rVd x wRld. (Unispl) 

Unispel uses lazy t(x), u(c), and U(C). 
difthongs are replaced by singl char. oi=Q, au=M (this looks strange) 
A=ei you can see an EI in the capital A. 

Numerology - Using Numbers as Phonograms 
One way to increase the inventory of neutral graphemes 
It is difficult to use a letter that has been assoicated with one sound for another