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Live Welsh speech translation API

Translate Welsh speech to and from 60+ languages in real time. Low-latency streaming, 3,600 language pairs, and accurate translation for voice agents, live captioning, and multilingual apps.

Production-ready Welsh speech translation API

Real conversations in Welsh include accents, regional dialects, code switching, and domain-specific vocabulary. Soniox is built to handle that variation in a single model, so live translation stays usable across regions and registers.

Soniox preserves formatting in the translated transcript, including names, numbers, addresses, IDs, and domain-specific terms.

Welsh belongs to the Indo-European > Celtic > Brittonic family. Soniox translates between Welsh and any of 60+ supported targets and 3,600 language pairs in total.

A breakthrough in real-time Welsh translation

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Translate Welsh before the sentence ends

Meaning lands as it's spoken, not after the caption catches up.

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Welsh paired with 60+ languages

Both source and target. 3,600 pairs total, not English-centric.

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High quality Welsh output

Same model across every language, including historically underserved ones.

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Native-speaker Welsh STT accuracy

Accurate translation starts with accurate recognition across accents, multilingual speech, and language switching.

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Welsh names, numbers, and domain terms

Preserved in both transcript and translation, including phone numbers, emails, and IDs.

config.json
{
  "model": "stt-rt-v4",
  "translation": {
    "type": "one_way",
    "target_language": "cy"
  }
}

Transcription + translation through a single stream

Welsh translation is built on top of Soniox Speech-to-Text API. Every spoken word is transcribed, and translation streams mid-sentence and both arrive together in a single labeled token stream.

Turn it on by adding a translation block to your request. Translation runs on the same WebSocket and the same model. Translated tokens come back interleaved with transcripts, with no extra round trip.

Live Welsh translation: written and spoken

Welsh speech-to-text translation

micLive Welsh speecharrow_right_altsubjectTranscript + translation

Translate live Welsh into written text with the Soniox STT API. Enable real-time translation with a config change. Soniox streams the Welsh transcript and translated text as speech happens.

Use it for Welsh captions, subtitles, meeting translation, agent assist, accessibility tools, and multilingual transcription.

Welsh speech-to-speech translation

micLive Welsh speecharrow_right_altvolume_upTranslated speech

Build full spoken Welsh translation by combining Soniox STT and Soniox TTS. Soniox recognizes Welsh, translates it in real time, and speaks the output in the target language with low latency.

Use it for live Welsh interpreters, bilingual voice agents, travel assistants, customer support, and real-time multilingual communication.

Live Welsh translation for captions, conversations and more

Stream live Welsh translation in two modes: one-way translates all speech into a single target language, two-way keeps a bilingual conversation flowing between Welsh and another language.

voice_selection
Welsh speaker says: “Ie, a falle cawn ni bara brith yn y half-time, os nad yw'r siop yn out of stock.”
translate
Speech is translated into English (or any of 60+ target languages) in real time.

One-way translation

Translate live speech to or from Welsh into a single target language. Everyone in the conversation sees the same translated stream.

Ideal for live captions, multilingual meetings, broadcasts, lectures, customer calls, and products where many speakers need to be understood in one language.

voice_selection
Welsh speaker talks in Welsh.
hearing
English speaker hears English.
voice_selection
English speaker replies in English.
hearing
Welsh speaker hears Welsh.

Two-way translation

Translate between Welsh and another language for live bilingual conversation. Each side speaks naturally and hears the other in their own language.

Soniox supports real-time two-way translation between any two of 60+ supported languages.

Built on the Soniox speech AI platform

Welsh translation is powered by the same infrastructure behind Soniox STT and TTS.

speech_to_text

Speech-to-Text

Native-speaker accuracy across 60+ languages, with support for multilingual speech, alphanumerics, speaker diarization, context.

translate

Translation

Real-time streaming translation across 3,600 language pairs, built for high quality and low delay across all supported languages.

text_to_speech

Text-to-speech

High-fidelity speech generation in 60+ languages, built for names, alphanumerics, language switching, and ultra-low-latency streaming.

Together, they create a complete real-time low-latency speech AI platform.

quiz
About Welsh

Welsh has roughly 900,000 speakers across United Kingdom.

Welsh is one of the oldest living languages in Europe and the most widely spoken Celtic language today.

Welsh uses initial consonant mutation — the first consonant of a word changes based on grammatical context.

Translate between all languages

From Welsh to any supported language, or any supported language to Welsh. 3,600 language pairs, all real-time.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Frequently asked questions

Does Soniox translate Welsh in real time?arrow_downward
Yes. Soniox streams Welsh translation while speech is still happening, so users see or hear meaning immediately instead of waiting for the sentence to end.
What language pairs are supported for Welsh?arrow_downward
Soniox supports translation between Welsh and any of 60+ supported languages — 3,600 language pairs in total. Both Welsh as the source and Welsh as the target are supported.
How does two-way Welsh translation work?arrow_downward
Two-way translation lets both sides of a conversation speak in their own language and hear the other side in theirs. A Welsh speaker can talk in Welsh while the other party hears their own language in real time, and vice versa.
Does Soniox handle dialects and accents in Welsh?arrow_downward
Yes. Soniox handles Welsh dialects like North Welsh (Gogledd) and South Welsh (De) in a single model, along with accents and language switching, so live translation stays accurate across regions and registers.
Can Soniox translate names, numbers, and domain terms in Welsh?arrow_downward
Yes. Soniox preserves the details that matter — names, phone numbers, emails, IDs, addresses, verification codes, and domain-specific terminology — in both the Welsh transcript and the translated output.
Which other providers support live Welsh translation?arrow_downward
Based on their public docs, OpenAI, Google, and Azure list Welsh as a supported source language for real-time translation. Soniox is the only one of them that also supports two-way live translation across 60+ languages.
How fast is Welsh translation?arrow_downward
Soniox streams translated text as Welsh is being spoken, with ultra-low latency. Translation arrives before the sentence ends, rather than after long caption delays.
What can I build with Welsh translation?arrow_downward
Common use cases include multilingual voice agents, live interpreters, multilingual meetings, customer support and contact centers, real-time translated captions and subtitles, and accessibility and communication tools — all with Welsh as a source or target.

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