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German to English speech translation API

Stream German (Deutsch) speech and get English (English) back in real time. One WebSocket, ISO codes de to en, and ultra-low latency for voice agents and live apps.

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Production-ready German to English translation API

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

German and English both belong to the Indo-European > Germanic > West Germanic family, so cognates and shared structure carry over cleanly into the translated English output.

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

A breakthrough in real-time German to English translation

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Translate before the sentence ends

English meaning lands as German is spoken, not after the caption catches up.

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Directional de to en streaming

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

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High quality English output

Same model across every language, including historically underserved ones.

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Native-speaker German STT accuracy

Accurate English translation starts with accurate German 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": "de",
    "target_language": "en"
  }
}

German and English through a single stream

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

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

Live German to English: written and spoken

German to English speech-to-text

micLive German speecharrow_right_altsubjectEnglish text

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

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

German to English speech-to-speech

micLive German speecharrow_right_altvolume_upSpoken English

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

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

Live German to English translation in action

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

voice_selection
German speaker says: “Ich zahle mit Apple Pay, falls der Laden cashless ist.”
translate
Translated into English in real time.

One-way translation

Translate live German into English. Everyone in the conversation sees the same translated stream.

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

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

Two-way translation

Translate between German and English 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 German at 7% word error rate and English at 6.5% 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.

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About German and English

German has roughly 100,000,000 speakers across Germany, Austria, Switzerland, and Luxembourg. English has roughly 1,500,000,000 speakers across United States, United Kingdom, Canada, and Australia.

Martin Luther's 1534 Bible translation was a landmark in standardizing the German language.

English is the most widely spoken language in the world when including both native and non-native speakers.

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

Translate German to any language

From German to English, or German to any of 60+ supported languages. All real-time.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Related translation pages

swap_horizTranslate English to Germanarrow_right_alttranslateGerman speech translationarrow_right_alttranslateEnglish speech translationarrow_right_altarrow_right_altGerman to Dutcharrow_right_altarrow_right_altGerman to Afrikaansarrow_right_alt

Frequently asked questions

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

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