Bengali to Persian speech translation API
Stream Bengali (বাংলা) speech and get Persian (فارسی) back in real time. One WebSocket, ISO codes bn to fa, and ultra-low latency for voice agents and live apps.
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Production-ready Bengali to Persian translation API
Real Bengali speech includes accents, regional dialects, code switching, and domain-specific vocabulary. Soniox recognizes it in a single model and streams Persian while the speaker is still talking.
Bengali (Indo-European > Indo-Aryan > Eastern) and Persian (Indo-European > Iranian > Western Iranian) come from different language families, so word order and morphology differ. Soniox reorders meaning in-stream instead of word by word.
Bengali is written in Bengali and Persian in Arabic, so Soniox emits correctly scripted Persian text. Right-to-left output is handled directly in the token stream.
A breakthrough in real-time Bengali to Persian translation
Translate before the sentence ends
Persian meaning lands as Bengali is spoken, not after the caption catches up.
Directional bn to fa streaming
Set the source and target codes once. Both arrive in a single labeled token stream.
High quality Persian output
Same model across every language, including historically underserved ones.
Native-speaker Bengali STT accuracy
Accurate Persian translation starts with accurate Bengali recognition across accents and language switching.
Names, numbers, and domain terms
Preserved across the pair, including phone numbers, emails, and IDs.
{
"model": "stt-rt-v5",
"translation": {
"type": "one_way",
"source_language": "bn",
"target_language": "fa"
}
}Bengali and Persian through a single stream
Bengali to Persian translation is built on top of Soniox Speech-to-Text API. Every spoken word is transcribed, and Persian translation streams mid-sentence in the same labeled token stream.
Turn it on by adding a translation block with source_language: "bn" and target_language: "fa". It runs on the same WebSocket and the same model, with no extra round trip.
Live Bengali to Persian: written and spoken
Bengali to Persian speech-to-text
Translate live Bengali into written Persian with the Soniox STT API. Soniox streams the Bengali transcript and the Persian translation as speech happens.
Use it for Persian captions, subtitles, meeting translation, agent assist, and multilingual transcription.
Bengali to Persian speech-to-speech
Build full spoken Bengali to Persian translation by combining Soniox STT and Soniox TTS. Soniox recognizes Bengali, translates it, and speaks Persian with low latency.
Use it for live interpreters, bilingual voice agents, travel assistants, and customer support.
Live Bengali to Persian translation in action
Stream Bengali to Persian one-way to push all speech into Persian, or two-way to keep a bilingual conversation flowing between the two languages.
One-way translation
Translate live Bengali into Persian. Everyone in the conversation sees the same translated stream.
Ideal for live captions, multilingual meetings, broadcasts, lectures, and customer calls.
Two-way translation
Translate between Bengali and Persian 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 Bengali at 1.25% word error rate and Persian at 1.25% word error rate. Accurate recognition on both sides is what makes the translation reliable.
Speech-to-Text
Native-speaker accuracy across 60+ languages, with support for multilingual speech, alphanumerics, speaker diarization, context.
Translation
Real-time streaming translation across 3,600 language pairs, built for high quality and low delay across all supported languages.
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.
About Bengali and Persian
Bengali has roughly 300,000,000 speakers across Bangladesh and India. Persian has roughly 110,000,000 speakers across Iran, Afghanistan, and Tajikistan.
Bengali is the national language of Bangladesh and an official language of India.
Persian is one of the world's oldest literary languages, with a written tradition spanning over 2,500 years.
Soniox makes Bengali to Persian usable in real-time translation across every supported pair.
Translate Bengali to any language
From Bengali to Persian, or Bengali to any of 60+ supported languages. All real-time.
Frequently asked questions
How do I translate Bengali to Persian with the API?
Is Bengali to Persian translation real-time?
What about translating Persian to Bengali?
Does Soniox handle Bengali to Arabic output?
Does Soniox handle Bengali dialects and accents?
Which other providers support Bengali to Persian?
How fast is Bengali to Persian translation?
Simple, usage-based pricing
Translate live audio from Bengali to Persian from ~$0.18/hour.
Translation is already built into Soniox Speech-to-Text API. When turned on, it adds about ~$0.06/hour in output token costs.
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