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Finnish to Swedish speech translation API

Stream Finnish (Suomi) speech and get Swedish (Svenska) back in real time. One WebSocket, ISO codes fi to sv, and ultra-low latency for voice agents and live apps.

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Production-ready Finnish to Swedish translation API

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

Finnish (Uralic > Finnic) and Swedish (Indo-European > Germanic > North Germanic) 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 Finnish to Swedish translation

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Translate before the sentence ends

Swedish meaning lands as Finnish is spoken, not after the caption catches up.

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Directional fi to sv streaming

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

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High quality Swedish output

Same model across every language, including historically underserved ones.

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Native-speaker Finnish STT accuracy

Accurate Swedish translation starts with accurate Finnish 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": "fi",
    "target_language": "sv"
  }
}

Finnish and Swedish through a single stream

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

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

Live Finnish to Swedish: written and spoken

Finnish to Swedish speech-to-text

micLive Finnish speecharrow_right_altsubjectSwedish text

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

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

Finnish to Swedish speech-to-speech

micLive Finnish speecharrow_right_altvolume_upSpoken Swedish

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

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

Live Finnish to Swedish translation in action

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

voice_selection
Finnish speaker says: “Heitetään. Mut pidetään cooldown lyhyenä, huomenna on aikainen palaveri.”
translate
Translated into Swedish in real time.

One-way translation

Translate live Finnish into Swedish. Everyone in the conversation sees the same translated stream.

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

voice_selection
Finnish speaker talks in Finnish.
hearing
Swedish speaker hears Swedish.
voice_selection
Swedish speaker replies in Swedish.
hearing
Finnish speaker hears Finnish.

Two-way translation

Translate between Finnish and Swedish 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 Finnish at 10.6% word error rate and Swedish at 8.2% 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.

quiz
About Finnish and Swedish

Finnish has roughly 5,500,000 speakers across Finland. Swedish has roughly 10,000,000 speakers across Sweden.

Finnish is not related to the neighboring Scandinavian languages; it belongs to the Uralic family.

Swedish is the most widely spoken of the Scandinavian languages.

Soniox makes Finnish to Swedish usable in real-time translation across every supported pair.

Translate Finnish to any language

From Finnish to Swedish, or Finnish to any of 60+ supported languages. All real-time.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Related translation pages

swap_horizTranslate Swedish to Finnisharrow_right_alttranslateFinnish speech translationarrow_right_alttranslateSwedish speech translationarrow_right_altarrow_right_altFinnish to Estonianarrow_right_alt

Frequently asked questions

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

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