Get the AppBuild with API

Polish to Slovak speech translation API

Stream Polish (Polski) speech and get Slovak (Slovenčina) back in real time. One WebSocket, ISO codes pl to sk, and ultra-low latency for voice agents and live apps.

Trusted by

Production-ready Polish to Slovak translation API

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

Polish and Slovak both belong to the Indo-European > Slavic > West Slavic family, so cognates and shared structure carry over cleanly into the translated Slovak output.

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

A breakthrough in real-time Polish to Slovak translation

check

Translate before the sentence ends

Slovak meaning lands as Polish is spoken, not after the caption catches up.

check

Directional pl to sk streaming

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

check

High quality Slovak output

Same model across every language, including historically underserved ones.

check

Native-speaker Polish STT accuracy

Accurate Slovak translation starts with accurate Polish recognition across accents and language switching.

check

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": "pl",
    "target_language": "sk"
  }
}

Polish and Slovak through a single stream

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

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

Live Polish to Slovak: written and spoken

Polish to Slovak speech-to-text

micLive Polish speecharrow_right_altsubjectSlovak text

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

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

Polish to Slovak speech-to-speech

micLive Polish speecharrow_right_altvolume_upSpoken Slovak

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

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

Live Polish to Slovak translation in action

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

voice_selection
Polish speaker says: “Podeślij mi na Slacku link do tego folderu, bo mam zaraz call.”
translate
Translated into Slovak in real time.

One-way translation

Translate live Polish into Slovak. Everyone in the conversation sees the same translated stream.

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

voice_selection
Polish speaker talks in Polish.
hearing
Slovak speaker hears Slovak.
voice_selection
Slovak speaker replies in Slovak.
hearing
Polish speaker hears Polish.

Two-way translation

Translate between Polish and Slovak 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 Polish at 6% word error rate and Slovak at 8.5% 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 Polish and Slovak

Polish has roughly 45,000,000 speakers across Poland. Slovak has roughly 5,400,000 speakers across Slovakia.

Polish is the second most widely spoken Slavic language by number of native speakers, after Russian.

Slovak and Czech are mutually intelligible, and speakers of both languages can generally understand each other.

Polish and Slovak are closely related languages, which helps Soniox keep tone and meaning consistent across the pair.

Translate Polish to any language

From Polish to Slovak, or Polish to any of 60+ supported languages. All real-time.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Related translation pages

swap_horizTranslate Slovak to Polisharrow_right_alttranslatePolish speech translationarrow_right_alttranslateSlovak speech translationarrow_right_altarrow_right_altPolish to Czecharrow_right_alt

Frequently asked questions

How do I translate Polish to Slovak with the API?arrow_downward
Add a translation block to your real-time request with source_language "pl" and target_language "sk". Soniox transcribes Polish and streams the Slovak translation over the same WebSocket.
Is Polish to Slovak translation real-time?arrow_downward
Yes. Soniox streams Slovak while Polish is still being spoken, so meaning arrives mid-sentence instead of after the sentence ends.
What about translating Slovak to Polish?arrow_downward
That direction is supported too. See the Slovak to Polish page, or use two-way translation to run both directions in one session.
Polish and Slovak are both Indo-European > Slavic > West Slavic — does that affect quality?arrow_downward
Shared family structure and cognates generally help. Soniox uses the same model for every pair, so quality stays consistent whether the languages are closely related or not.
Does Soniox handle Polish dialects and accents?arrow_downward
Yes. Soniox handles Polish dialects like Greater Polish, Lesser Polish, and Masovian in a single model, so Slovak translation stays accurate across regions.
Which other providers support Polish to Slovak?arrow_downward
Based on their public docs, OpenAI, Azure, and Speechmatics list both Polish and Slovak for real-time translation. Soniox is the only one that also supports two-way live translation across 60+ languages.
How fast is Polish to Slovak translation?arrow_downward
Soniox streams Slovak as Polish is being spoken, with ultra-low latency. Translation arrives before the sentence ends.

Ready to get started?

Create an account instantly, or contact us to design a custom package for your business.

Build with API arrow_right_alt

Documentation

Get up and running in minutes and spend your time building the product, not wrestling with the API.

Explore docs

See what you’ll pay

Pay only for what you use with our flexible pricing. Built to scale with you.

Pricing details