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Welsh to Swahili speech translation API

Stream Welsh (Cymraeg) speech and get Swahili (Kiswahili) back in real time. One WebSocket, ISO codes cy to sw, and ultra-low latency for voice agents and live apps.

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Production-ready Welsh to Swahili translation API

Real Welsh speech includes accents, regional dialects, code switching, and domain-specific vocabulary. Soniox recognizes it in a single model and streams Swahili while the speaker is still talking.

Welsh (Indo-European > Celtic > Brittonic) and Swahili (Niger-Congo > Atlantic-Congo > Bantu) come from different language families, so word order and morphology differ. Soniox reorders meaning in-stream instead of word by word.

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

A breakthrough in real-time Welsh to Swahili translation

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Translate before the sentence ends

Swahili meaning lands as Welsh is spoken, not after the caption catches up.

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Directional cy to sw streaming

Set the source and target codes once. Both arrive in a single labeled token stream.

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High quality Swahili output

Same model across every language, including historically underserved ones.

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Native-speaker Welsh STT accuracy

Accurate Swahili translation starts with accurate Welsh recognition across accents and language switching.

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Names, numbers, and domain terms

Preserved across the pair, including phone numbers, emails, and IDs.

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

Welsh and Swahili through a single stream

Welsh to Swahili translation is built on top of Soniox Speech-to-Text API. Every spoken word is transcribed, and Swahili translation streams mid-sentence in the same labeled token stream.

Turn it on by adding a translation block with source_language: "cy" and target_language: "sw". It runs on the same WebSocket and the same model, with no extra round trip.

Live Welsh to Swahili: written and spoken

Welsh to Swahili speech-to-text

micLive Welsh speecharrow_right_altsubjectSwahili text

Translate live Welsh into written Swahili with the Soniox STT API. Soniox streams the Welsh transcript and the Swahili translation as speech happens.

Use it for Swahili captions, subtitles, meeting translation, agent assist, and multilingual transcription.

Welsh to Swahili speech-to-speech

micLive Welsh speecharrow_right_altvolume_upSpoken Swahili

Build full spoken Welsh to Swahili translation by combining Soniox STT and Soniox TTS. Soniox recognizes Welsh, translates it, and speaks Swahili with low latency.

Use it for live interpreters, bilingual voice agents, travel assistants, and customer support.

Live Welsh to Swahili translation in action

Stream Welsh to Swahili one-way to push all speech into Swahili, or two-way to keep a bilingual conversation flowing between the two languages.

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.”
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Translated into Swahili in real time.

One-way translation

Translate live Welsh into Swahili. Everyone in the conversation sees the same translated stream.

Ideal for live captions, multilingual meetings, broadcasts, lectures, and customer calls.

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

Two-way translation

Translate between Welsh and Swahili 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.

Accurate on both ends of the pair

Soniox transcribes Welsh at 14.3% word error rate and Swahili at 9.3% word error rate. Accurate recognition on both sides is what makes the translation reliable.

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.

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About Welsh and Swahili

Welsh has roughly 900,000 speakers across United Kingdom. Swahili has roughly 200,000,000 speakers across Tanzania, Kenya, Uganda, and Rwanda.

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

Swahili is the most widely spoken African language, serving as a lingua franca across East Africa.

Soniox makes Welsh to Swahili usable in real-time translation across every supported pair.

Translate Welsh to any language

From Welsh to Swahili, or Welsh to any of 60+ supported languages. All real-time.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnamese

Related translation pages

swap_horizTranslate Swahili to Welsharrow_right_alttranslateWelsh speech translationarrow_right_alttranslateSwahili speech translationarrow_right_alt

Frequently asked questions

How do I translate Welsh to Swahili with the API?arrow_downward
Add a translation block to your real-time request with source_language "cy" and target_language "sw". Soniox transcribes Welsh and streams the Swahili translation over the same WebSocket.
Is Welsh to Swahili translation real-time?arrow_downward
Yes. Soniox streams Swahili while Welsh is still being spoken, so meaning arrives mid-sentence instead of after the sentence ends.
What about translating Swahili to Welsh?arrow_downward
That direction is supported too. See the Swahili to Welsh page, or use two-way translation to run both directions in one session.
Does Soniox handle Welsh dialects and accents?arrow_downward
Yes. Soniox handles Welsh dialects like North Welsh (Gogledd) and South Welsh (De) in a single model, so Swahili translation stays accurate across regions.
Which other providers support Welsh to Swahili?arrow_downward
Based on their public docs, OpenAI and Azure list both Welsh and Swahili for real-time translation. Soniox is the only one that also supports two-way live translation across 60+ languages.
How fast is Welsh to Swahili translation?arrow_downward
Soniox streams Swahili as Welsh is being spoken, with ultra-low latency. Translation arrives before the sentence ends.

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