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English (US) ARPA dictionary v2.0.0#

  • Maintainer: Montreal Forced Aligner

  • Language: English

  • Dialect: General American English

  • Phone set: ARPA

  • Number of words: 199,858

  • Phones: AA0 AA1 AA2 AE0 AE1 AE2 AH0 AH1 AH2 AO0 AO1 AO2 AW0 AW1 AW2 AY0 AY1 AY2 B CH D DH EH0 EH1 EH2 ER0 ER1 ER2 EY0 EY1 EY2 F G HH IH0 IH1 IH2 IY0 IY1 IY2 JH K L M N NG OW0 OW1 OW2 OY0 OY1 OY2 P R S SH T TH UH0 UH1 UH2 UW0 UW1 UW2 V W Y Z ZH

  • License: CC BY 4.0

  • Compatible MFA version: v2.0.0

  • Citation:

@article{gorman2011prosodylab,
	author={Gorman, Kyle and Howell, Jonathan and Wagner, Michael},
	title={Prosodylab-aligner: A tool for forced alignment of laboratory speech},
	journal={Canadian Acoustics},
	volume={39},
	number={3},
	pages={192--193},
	year={2011}
}

G2P models

Acoustic models
../../_images/full_logo_yellow.svg

Installation#

Install from the MFA command line:

mfa model download dictionary english_us_arpa

Or download from the release page.

The dictionary available from the release page and command line installation has pronunciation and silence probabilities estimated as part acoustic model training (see Silence probability format and training pronunciation probabilities for more information. If you would like to use the version of this dictionary without probabilities, please see the plain dictionary.

Intended use#

This dictionary is intended for forced alignment of English transcripts.

This dictionary uses the ARPA phone set for English, and was used in training the English ARPA acoustic model. Pronunciations can be added on top of the dictionary, as long as no additional phones are introduced.

Performance Factors#

When trying to get better alignment accuracy, adding pronunciations is generally helpful, especially for different styles and dialects. The most impactful improvements will generally be seen when adding reduced variants that involve deleting segments/syllables common in spontaneous speech. Alignment must include all phones specified in the pronunciation of a word, and each phone has a minimum duration (by default 10ms). If a speaker pronounces a multisyllabic word with just a single syllable, it can be hard for MFA to fit all the segments in, so it will lead to alignment errors on adjacent words as well.

Ethical considerations#

Deploying any Speech-to-Text model into any production setting has ethical implications. You should consider these implications before use.

Demographic Bias#

You should assume every machine learning model has demographic bias unless proven otherwise. For pronunciation dictionaries, it is often the case that transcription accuracy and lexicon coverage for the prestige variety modeled in this dictionary compared to other variants. If you are using this dictionary in production, you should acknowledge this as a potential issue.

IPA Charts#

Consonants#

Obstruent symbols to the left of are unvoiced and those to the right are voiced.

Manner

Labial

Labiodental

Dental

Alveolar

Alveopalatal

Palatal

Velar

Glottal

Nasal
Occurrences:
44,595
Examples:
* visum:
[V IH1 ZH AH0 M]
* mako:
[M AA1 K OW0]
* myrt:
[M ER1 T]
* alm:
[AA1 L M]
Occurrences:
94,848
Examples:
* unlit:
[AH0 N L IH2 T]
* gans:
[G AE1 N Z]
* lunga:
[L AH1 N G AH0]
* indo:
[IH1 N D OW0]
Occurrences:
15,230
Examples:
* sangs:
[S AE1 NG Z]
* sings:
[S IH1 NG Z]
* tanga:
[T AA1 NG G AH0]
* stank:
[S T AE1 NG K]

Stop
Occurrences:
32,322
Examples:
* p'hra:
[P IY1 R AH0]
* pabo:
[P AA1 B OW0]
* paht:
[P AA1 T]
* soupe:
[S UW1 P]
Occurrences:
31,562
Examples:
* haub:
[HH AO1 B]
* pabo:
[P AA1 B OW0]
* bhuja:
[B UW1 Y AH0]
* babin:
[B AE1 B IH0 N]
Occurrences:
75,542
Examples:
* unlit:
[AH0 N L IH2 T]
* corta:
[K AO1 R T AH0]
* myrt:
[M ER1 T]
* sart:
[S AA0 R T]
Occurrences:
52,334
Examples:
* herod:
[HH EH1 R AH0 D]
* indo:
[IH1 N D OW0]
* dour:
[D AW1 ER0]
* dewy:
[D UW1 IY0]
Occurrences:
58,375
Examples:
* coru:
[K AO1 R UW0]
* corta:
[K AO1 R T AH0]
* mako:
[M AA1 K OW0]
* saxo:
[S AE1 K S OW0]
Occurrences:
20,766
Examples:
* gans:
[G AE1 N Z]
* lunga:
[L AH1 N G AH0]
* gyu:
[G Y UW2]
* agnew:
[AE1 G N Y UW0]

Affricate
Occurrences:
8,420
Examples:
* check:
[CH EH1 K]
* chaf:
[CH AE1 F]
* tchah:
[CH]
* vich:
[V IH0 CH]
Occurrences:
10,111
Examples:
* jarl:
[JH AA1 R L]
* monge:
[M AA1 N JH]
* rigi:
[R IH1 JH IY0]
* job's:
[JH AA1 B Z]

Sibilant
Occurrences:
78,674
Examples:
* sangs:
[S AE1 NG Z]
* saxo:
[S AE1 K S OW0]
* sart:
[S AA0 R T]
* areus:
[EH1 R IY0 AH0 S]
Occurrences:
53,038
Examples:
* sangs:
[S AE1 NG Z]
* gans:
[G AE1 N Z]
* norms:
[N AO1 R M Z]
* lawns:
[L AO1 N Z]
Occurrences:
12,288
Examples:
* tisza:
[T IH1 SH AH0]
* shark:
[SH AA1 R K]
* imshi:
[IH1 M SH IY0]
* fosh:
[F AA1 SH]
Occurrences:
796
Examples:
* visum:
[V IH1 ZH AH0 M]
* touge:
[T UW1 ZH]
* zhoo:
[ZH UW1]
* taj:
[T AA1 ZH]

Fricative
Occurrences:
20,957
Examples:
* fout:
[F AW1 T]
* frey:
[F R EY1]
* chaf:
[CH AE1 F]
* flint:
[F L IH1 N T]
Occurrences:
17,526
Examples:
* visum:
[V IH1 ZH AH0 M]
* vitta:
[V IY1 T AH0]
* giv:
[G IH1 V]
* visby:
[V IH1 S B IY0]
Occurrences:
6,592
Examples:
* seeth:
[S IY1 TH]
* nith:
[N IH2 TH]
* thud:
[TH AH1 D]
* oneth:
[W AH1 N EH1 TH]
Occurrences:
1,311
Examples:
* this:
[DH IH1 S]
* lathe:
[L EY1 DH]
* than:
[DH AE1 N]
* otha:
[AH0 DH AA1]
Occurrences:
13,675
Examples:
* haub:
[HH AO1 B]
* herod:
[HH EH1 R AH0 D]
* aloha:
[AH0 L OW1 HH AA0]
* helve:
[HH EH1 L V]

Approximant
Occurrences:
14,822
Examples:
* wixy:
[W IH1 K S IY0]
* aiwa:
[AY1 W AH0]
* swat:
[S W AA1 T]
* dwell:
[D W EH1 L]
Occurrences:
71,342
Examples:
* coru:
[K AO1 R UW0]
* corta:
[K AO1 R T AH0]
* p'hra:
[P IY1 R AH0]
* sart:
[S AA0 R T]
Occurrences:
8,159
Examples:
* bhuja:
[B UW1 Y AH0]
* gyu:
[G Y UW2]
* agnew:
[AE1 G N Y UW0]
* humes:
[HH Y UW1 M Z]

Lateral
Occurrences:
76,788
Examples:
* unlit:
[AH0 N L IH2 T]
* alm:
[AA1 L M]
* malus:
[M AH0 L AH0 S]
* lunga:
[L AH1 N G AH0]

Vowels#

Vowel symbols to the left of are unrounded and those to the right are rounded.

Front

Near-Front

Central

Near-Back

Back

Close
Occurrences:
55,169
Examples:
* kee:
[K IY1]
* meder:
[M IY1 D ER0]
* romae:
[R OW0 M IY2]
* kwee:
[K W IY2]
Occurrences:
16,256
Examples:
* bhuja:
[B UW1 Y AH0]
* coru:
[K AO1 R UW0]
* pouce:
[P UW2 S]
* dewy:
[D UW1 IY0]
Occurrences:
79,698
Examples:
* critz:
[K R IH1 T S]
* repel:
[R IH0 P EH1 L]
* istar:
[IH2 S T AA0 R]
* stip:
[S T IH2 P]
Occurrences:
4,024
Examples:
* hould:
[HH UH1 D]
* suraj:
[S UH0 R AA1 ZH]
* cures:
[K Y UH1 R Z]
* toots:
[T UH1 T S]

Close-Mid
Occurrences:
21,225
Examples:
* aoste:
[EY1 OW1 S T]
* mamey:
[M EY1 M IY0]
* nacre:
[N EY2 K ER0]
* whei:
[HH W EY2]
Occurrences:
25,875
Examples:
* mako:
[M AA1 K OW0]
* leggo:
[L EH1 G OW2]
* saxo:
[S AE1 K S OW0]
* aoste:
[EY1 OW1 S T]
Occurrences:
116,953
Examples:
* p'hra:
[P IY1 R AH0]
* suf:
[S AH2 F]
* k'ung:
[K EY1 SH AH2 NG]
* suld:
[S AH1 L D]

Open-Mid
Occurrences:
39,703
Examples:
* bicep:
[B AY2 S EH0 P]
* etext:
[EH2 T EH1 K S T]
* ngalo:
[EH0 NG G AH0 L OW2]
* abdel:
[AE1 B D EH2 L]
Occurrences:
34,206
Examples:
* imlac:
[IH0 M L AE2 K]
* gans:
[G AE1 N Z]
* akhab:
[AE1 K AE2 B]
* babin:
[B AE1 B IH0 N]
Occurrences:
40,624
Examples:
* carus:
[K ER2 AH0 S]
* boker:
[B OW1 K ER0]
* nacre:
[N EY2 K ER0]
* myrt:
[M ER1 T]

Open
Occurrences:
37,763
Examples:
* narth:
[N AA2 R TH]
* otkar:
[AA1 T K AA2 R]
* pabo:
[P AA1 B OW0]
* claro:
[K L AA1 R OW0]
Occurrences:
18,014
Examples:
* corta:
[K AO1 R T AH0]
* autou:
[AO2 T UW1]
* gorp:
[G AO0 R P]
* coru:
[K AO1 R UW0]

Diphthongs#

  • AW

  • AY

  • OY

Stress#

  • 0

  • 1

  • 2

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