Translator

The Translator class is the core component of the lara-sdk, designed for translating text and documents. It must be initialized with authentication credentials.

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import {Credentials, Translator} from "@translated/lara";

const LARA_ACCESS_KEY_ID: string = "your-access-key-id";
const LARA_ACCESS_KEY_SECRET: string = "your-access-key-secret";

// Initialization of the Translator class
const credentials = new Credentials(LARA_ACCESS_KEY_ID, LARA_ACCESS_KEY_SECRET)
const lara: Translator = new Translator(credentials);

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Translate audio file

All audio translation functionalities can be accessed via the same Translator (lara in the example) object of the above example, through the AudioTranslator class.

Audio translation is an asynchronous process consisting of three phases.

Upload the audio file
Wait for Lara to finish the process, polling the status at regular intervals until it changes to translated
Download the file

For your convenience the SDK includes a translate method that takes care of the entire process.

Once uploaded with the upload method, Lara will return a Audio object; the id of this object can be used both to check the status with the status method, both to download the translated file with the download method once its status became translated.

Audio object

Field	Type	Description
id	String	Unique ID of the document. Format: doc_xyz123
status	String	The current status of the translation.
source	String	The source language of the document.
target	String	The target language of the translation.
filename	String	Filename of the source file.
createdAt	DateTime	When the document is created.
updatedAt	DateTime	When the document is last updated (equal to created_at with no updates).
options	AudioOptions	Options related to the document translation.
translatedSeconds	Integer	The number of translated seconds.
totalSeconds	Integer	The number of seconds in the document.
errorReason	String	The reason of the error, if any.

Translate method

The SDK contains a translate method that simplifies the process of translating audio file by uploading the file, checking the status at regular intervals, and returning the result of the download function.

Request

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const options: AudioTranslateOptions = {
  adaptTo: ['mem_1_id', 'mem_2_id'],
  glossaries: ['gls_1_id', 'gls_2_id'],
  style: 'fluid'
};

// Translate an audio file
const translation = await lara.audio.translate(file, 'test.wav', 'en', 'it', options);

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Here follows the basic fields for the translate method:

Field	Type	Required	Default	Description
file / filePath	File / String	Yes		The input file/the path to input file to translate.
filename	String	Yes*		Only the Typescript/Javascript SDK requires the filename as parameter.
source	String	No	Autodetected	The source language code (e.g., "en-EN" for English). If not specified, the system will attempt to detect it automatically.
target	String	Yes		The target language code (e.g., "it-IT" for Italian). This specifies the language you want the text translated into.
options	AudioTranslateOptions	No		See the table below for details.

Some options are available to customize the behavior of the translate method:

Field	Type	Required	Default	Description
adaptTo	String[]	No	Default is all Memories on your account	A list of translation memory IDs for adapting the translation.
glossaries	String[]	No		A list of glossary IDs.
noTrace	Boolean	No	False	If set to True, source content and its translation will not be saved on our system. (AKA Incognito mode)
style	String	No	`faithful`	The style to apply to the translation. Available values: `faithful` `fluid` `creative`

The following sections provide a detailed breakdown of the phases and methods utilized by the translate method.

Upload an audio file

The upload method will take care of uploading the source file to Lara and starting the translation process.

Request

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const options: AudioUploadOptions = {
  adaptTo: ['mem_1_id', 'mem_2_id'],
  glossaries: ['gls_1_id', 'gls_2_id'],
  style: 'fluid',
};

// Upload an audio file and start the translation process
const audio: Audio = await lara.audio.upload(file, 'test.wav', 'en', 'it', options);

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Here follows the basic fields for the upload method:

Field	Type	Required	Default	Description
file	File	Yes		The input file to translate.
filename	String	Yes*		The Typescript/Javascript and Python SDKs require the filename as a parameter.
source	String	No	Autodetected	The source language code (e.g., "en-EN" for English). If not specified, the system will attempt to detect it automatically.
target	String	Yes		The target language code (e.g., "it-IT" for Italian). This specifies the language you want the text translated into.
options	AudioUploadOptions	No		See the table below for details.

There are some options available to customize the behavior of the upload method:

Field	Type	Required	Default	Description
adaptTo	String[]	No	Default is all Memories on your account	A list of translation memory IDs for adapting the translation.
glossaries	String[]	No		A list of glossary IDs.
noTrace	Boolean	No	False	If set to True, source content and its translation will not be saved on our system.
style	String	No	`faithful`	The style to apply to the translation. Available values: `faithful` `fluid` `creative`

The result of the upload method is a Audio object that is needed to check the translation status and download the translated audio file.

Response

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// audio
{
  status: 'initialized',
  id: 'doc_3TJ2ObqnrYTC2k5vSfLlqz',
  filename: 'test.wav',
  updatedAt: 2025-05-15T09:28:14.626Z,
  createdAt: 2025-05-15T09:28:14.626Z,
  source: 'en',
  target: 'it'
}

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Check status

After the upload is finished, it is possible to check the status of the translation at regular intervals. This can be done with the status method:

Request

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// check the status of the audio file
audio = await lara.audio.status(audio.id);

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The method takes as unique parameter the id of the Audio object obtained with the upload method.

Field	Type	Required	Default	Description
id	String	Yes		The audio file id obtained with the `upload` method.

Response

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// document
{
  status: 'translated',
  id: 'doc_3TJ2ObqnrYTC2k5vSfLlqz',
  filename: 'test.txt',
  updatedAt: 2025-05-15T09:28:22.347Z,
  createdAt: 2025-05-15T09:28:14.626Z,
  source: 'en',
  target: 'it'
}

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Download the translation

After updating the audio file status with the status method and setting it to translated, you can download the translated audio file with the download method.

Request

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const options: DocumentDownloadOptions = {
  outputFormat: 'pdf'
}

// Download the translation:
const translation = await lara.documents.download(document.id, options);

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Here follows the basic fields for the download method:

Field	Type	Required	Default	Description
id	String	Yes		The id of the document obtained with the `upload` method.

Supported Languages

Afrikaans - af-ZA

Albanian - sq-AL

Amharic - am-ET

Arabic - ar-SA Armenian - hy-AM

Azerbaijani - az-AZ

Basque - eu-ES

Bengali - bn-BD Bulgarian - bg-BG

Burmese - my-MM

Catalan - ca-ES

Chinese (Simplified) - zh-CN

Chinese (Traditional, Hong Kong) - zh-HK

Croatian - hr-HR

Czech - cs-CZ

Danish - da-DK

Dutch - nl-NL

English (Australia) - en-AU

English (Canada) - en-CA

English (Ireland) - en-IE

English (United Kingdom) - en-GB

English (United States) - en-US

Estonian - et-EE

Filipino - fil-PH

Finnish - fi-FI

French - fr-FR

Galician - gl-ES

Georgian - ka-GE

German - de-DE

Hebrew - he-IL

Hindi - hi-IN

Hungarian - hu-HU

Icelandic - is-IS

Indonesian - id-ID

Irish - ga-IE

Italian - it-IT

Japanese - ja-JP

Javanese - jv-ID

Kazakh - kk-KZ

Korean - ko-KR

Lao - lo-LA

Latvian - lv-LV

Lithuanian - lt-LT

Macedonian - mk-MK

Malay - ms-MY

Malayalam - ml-IN

Maltese - mt-MT

Marathi - mr-IN

Mongolian - mn-MN

Norwegian Bokmål - nb-NO

Pashto - ps-PK Persian - fa-IR

Polish - pl-PL

Portuguese (Brazil) - pt-BR

Portuguese (Portugal) - pt-PT

Romanian - ro-RO

Russian - ru-RU

Serbian (Cyrillic script) - sr-Cyrl-RS Slovak - sk-SK

Slovenian - sl-SI

Somali - so-SO

Spanish - es-ES

Spanish (Argentina) - es-AR

Spanish (Latin America) - es-419 Spanish (Mexico) - es-MX

Swahili - sw-KE

Swedish - sv-SE

Tagalog - tl-PH Tamil - ta-IN

Thai - th-TH

Turkish - tr-TR

Ukrainian - uk-UA

Urdu - ur-PK Uzbek - uzn-UZ

Vietnamese - vi-VN

Welsh - cy-GB

Billing

More details are available in the pricing page