AI Translations
Live machine translation of captions in Line 21: the translation engines, supported languages, switching engines per language, and custom dictionaries.
Line 21 supports automatic translations in 99 unique languages across all translation engines. We use a variety of translation engines to make sure translations are accurate and cover as many languages as possible.
Translation engines
| Translation engine | Supported languages | Dictionaries |
|---|---|---|
Azure | 96 | |
 | 35 | |
Google | 79 | |
 | 99 |
Supported languages
Line 21 supports 99 unique languages across all translation engines.
| Language | Code | Translation Engines |
|---|---|---|
| Afrikaans | AF | |
| Albanian | SQ | |
| Amharic | AM | |
| Arabic | AR | |
| Armenian | HY | |
| Azerbaijani | AZ | |
| Bashkir | BA | |
| Basque | EU | |
| Bengali | BN | |
| Bosnian | BS | |
| Bulgarian | BG | |
| Catalan | CA | |
| Chinese (Simplified) | ZH | |
| Croatian | HR | |
| Czech | CS | |
| Danish | DA | |
| Dutch | NL | |
| English | EN | |
| Estonian | ET | |
| Finnish | FI | |
| French | FR | |
| Galician | GL | |
| Georgian | KA | |
| German | DE | |
| Greek | EL | |
| Gujarati | GU | |
| Haitian Creole | HT | |
| Hausa | HA | |
| Hebrew | HE | |
| Hindi | HI | |
| Hungarian | HU | |
| Icelandic | IS | |
| Igbo | IG | |
| Indonesian | ID | |
| Irish | GA | |
| Italian | IT | |
| Japanese | JA | |
| Kannada | KN | |
| Kazakh | KK | |
| Khmer | KM | |
| Kinyarwanda | RW | |
| Korean | KO | |
| Kurdish | KU | |
| Kyrgyz | KY | |
| Lao | LO | |
| Latin | LA | |
| Latvian | LV | |
| Lithuanian | LT | |
| Macedonian | MK | |
| Malagasy | MG | |
| Malay | MS | |
| Malayalam | ML | |
| Maltese | MT | |
| Maori | MI | |
| Marathi | MR | |
| Myanmar (Burmese) | MY | |
| Nepali | NE | |
| Norwegian | NO | |
| Odia (Oriya) | OR | |
| Pashto | PS | |
| Persian | FA | |
| Polish | PL | |
| Portuguese | PT | |
| Punjabi | PA | |
| Romanian | RO | |
| Russian | RU | |
| Samoan | SM | |
| Sesotho | ST | |
| Shona | SN | |
| Sindhi | SD | |
| Sinhala (Sinhalese) | SI | |
| Slovak | SK | |
| Slovenian | SL | |
| Somali | SO | |
| Spanish | ES | |
| Swahili | SW | |
| Swedish | SV | |
| Tagalog (Filipino) | TL | |
| Tamil | TA | |
| Tatar | TT | |
| Telugu | TE | |
| Thai | TH | |
| Turkish | TR | |
| Turkmen | TK | |
| Ukrainian | UK | |
| Urdu | UR | |
| Uyghur | UG | |
| Uzbek | UZ | |
| Vietnamese | VI | |
| Welsh | CY | |
| Xhosa | XH | |
| Yoruba | YO | |
| Zulu | ZU | |
Adding a translation
Translations can be added from the AI Services section of the project settings.
Changing the translation engine
You can change the translation engine for a specific translation language. We automatically recommend one of the engines, but you can test and change it as you wish.
If you want us to integrate a new translation engine that better supports your use case, please contact us and we'll be happy to consider it.
Custom dictionaries
Most translation engines support custom dictionaries. You can use this feature to tweak the translation of any pair of languages. Useful for specific words of phrases that are not correctly translated by the machine translation engine, especially proper nouns (like brands, e.g. Shell).
AI Services
An overview of the AI in Line 21's live captioning: speech recognition, AI translations, AI Context, the AI Proofreader, and the AI call agent for meetings.
AI Dubbing
Live AI dubbing in Line 21: speech-to-speech translation with Gemini Live Translate, how to set it up, and how dubbed audio reaches players and streams.