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Bulgarian to Greek speech translation API

Stream Bulgarian (Български) speech and get Greek (Ελληνικά) back in real time. One WebSocket, ISO codes bg to el, and ultra-low latency for voice agents and live apps.

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Production-ready Bulgarian to Greek translation API

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

Bulgarian (Indo-European > Slavic > South Slavic) and Greek (Indo-European > Hellenic) come from different language families, so word order and morphology differ. Soniox reorders meaning in-stream instead of word by word.

Bulgarian is written in Cyrillic and Greek in Greek, so Soniox emits correctly scripted Greek text.

A breakthrough in real-time Bulgarian to Greek translation

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Translate before the sentence ends

Greek meaning lands as Bulgarian is spoken, not after the caption catches up.

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Directional bg to el streaming

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

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High quality Greek output

Same model across every language, including historically underserved ones.

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Native-speaker Bulgarian STT accuracy

Accurate Greek translation starts with accurate Bulgarian 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": "bg",
    "target_language": "el"
  }
}

Bulgarian and Greek through a single stream

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

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

Live Bulgarian to Greek: written and spoken

Bulgarian to Greek speech-to-text

micLive Bulgarian speecharrow_right_altsubjectGreek text

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

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

Bulgarian to Greek speech-to-speech

micLive Bulgarian speecharrow_right_altvolume_upSpoken Greek

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

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

Live Bulgarian to Greek translation in action

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

voice_selection
Bulgarian speaker says: “Имам deadline в три, така че ми трябва стабилно Wi‑Fi.”
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Translated into Greek in real time.

One-way translation

Translate live Bulgarian into Greek. Everyone in the conversation sees the same translated stream.

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

voice_selection
Bulgarian speaker talks in Bulgarian.
hearing
Greek speaker hears Greek.
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Greek speaker replies in Greek.
hearing
Bulgarian speaker hears Bulgarian.

Two-way translation

Translate between Bulgarian and Greek 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 Bulgarian at 5.6% word error rate and Greek at 7.4% 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 Bulgarian and Greek

Bulgarian has roughly 8,000,000 speakers across Bulgaria. Greek has roughly 13,500,000 speakers across Greece and Cyprus.

The Cyrillic alphabet was developed in the First Bulgarian Empire in the 9th century.

Greek has the longest documented history of any Indo-European language, spanning over 3,400 years.

Soniox makes Bulgarian to Greek usable in real-time translation across every supported pair.

Translate Bulgarian to any language

From Bulgarian to Greek, or Bulgarian to any of 60+ supported languages. All real-time.

AfrikaansAlbanianArabicAzerbaijaniBasqueBelarusianBengaliBosnianCatalanChineseCroatianCzechDanishDutchEnglishEstonianFinnishFrenchGalicianGermanGreekGujaratiHebrewHindiHungarianIndonesianItalianJapaneseKannadaKazakhKoreanLatvianLithuanianMacedonianMalayMalayalamMarathiNorwegianPersianPolishPortuguesePunjabiRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTagalogTamilTeluguThaiTurkishUkrainianUrduVietnameseWelsh

Related translation pages

swap_horizTranslate Greek to Bulgarianarrow_right_alttranslateBulgarian speech translationarrow_right_alttranslateGreek speech translationarrow_right_altarrow_right_altBulgarian to Macedonianarrow_right_altarrow_right_altBulgarian to Serbianarrow_right_alt

Frequently asked questions

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

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