Real-time translation app for travel in Japanese
Soniox App translates speech in real time, word by word, across 60+ languages and is built for travelers who work across language barriers. Conversations flow naturally with no waiting. Works with Japanese and 60+ other languages.
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Speak your language, be understood in theirs in Japanese
Language barriers slow down conversations and create misunderstandings. Soniox App removes them. Get seamless Japanese transcriptions today.
Connect with anyone
Have meaningful conversations with Japanese speakers regardless of the language barrier. No preparation needed.
Travel, work, daily life
From traveling in Japanese-speaking countries to joining international meetings, Translator handles any situation where languages differ.
Read translations live
Japanese translations appear on screen in real time so both sides of the conversation can follow along.
Cross-border collaboration
Work with Japanese-speaking teams, clients, and partners without language getting in the way.
Translation that keeps up with conversation in Japanese
Soniox App translates as people speak, not after they finish. Handles Japanese across varieties like Kanto and Kansai.
Two-way conversations
Speak Japanese while others speak their language. Soniox App translates both directions so everyone understands.
60+ languages
Translate Japanese and 60+ other languages with natural conversation flow.
Hear and read translations
Japanese translations appear as text on screen so you can follow the conversation visually.
Multi-language groups
Handle conversations mixing Japanese and other languages. Each participant sees translations in their language.
Japanese at a glance
Key facts about Japanese.
native name
speakers worldwide
country where spoken
Japanese transcription accuracy
Soniox App is powered by next-gen speech AI model developed inhouse by Soniox. The table below shows how Soniox AI performs on Japanese transcription compared to 8 other providers.
| Provider | WER (Japanese) | Accuracy |
|---|---|---|
| Soniox#1 | 8.7% | 91.3% |
| Speechmatics | 10.3% | 89.7% |
| Deepgram | 11.7% | 88.3% |
| ElevenLabs | 12% | 88.0% |
| OpenAI | 13.8% | 86.2% |
| Azure | 14% | 86.0% |
| 14.2% | 85.8% | |
| AssemblyAI | 14.8% | 85.2% |
| AWS | 16.2% | 83.8% |
Word error rate (WER) measures how many words a speech-to-text engine gets wrong. Lower is better.
Soniox outperforms Speechmatics, Deepgram, ElevenLabs, OpenAI, Azure, Google, AssemblyAI, and AWS on Japanese transcription accuracy.
Soniox App works with Japanese and 60+ more languages
Soniox App transcribes and translates in Japanese and over 60 other languages with professional-grade accuracy.
Soniox App: The all-in-one AI speech toolkit
Smart Scribe, Translator, and Voice Typing cover three ways people work with speech.
One app. Everything you do with voice in Japanese.
Get started free
Transcribe conversations in real time with Soniox.
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Learn everything Soniox can do
Need more details? The Soniox Help Center provides complete documentation for the app, including guides, videos, screenshots, and feature walkthroughs.
Learn how to use Smart Scribe, Translator, Voice Typing, and more.
Explore the Help CenterBuilt for any use case
From clinical documentation to creative workflows, Soniox App is built for the situations where accurate transcription and translation matter most.
Meeting transcription
Capture every decision and action item from meetings automatically.
Lecture transcription
Record complete lecture transcripts for study and accessibility.
Medical dictation
Document clinical encounters hands-free with professional accuracy.
Hearing accessibility
Real-time captions for deaf and hard-of-hearing users in any setting.
Travel translator
Communicate across language barriers with real-time spoken translation.
Voice notes
Capture ideas and thoughts hands-free and turn them into searchable text.
Private by default
Soniox never stores your recordings and never uses your audio to train models. Everything is processed securely in real-time, then gone.
Japanese language trivia
こんにちは - that's how you say hello in Japanese.
History and background
- history
Japanese uses three writing systems simultaneously: kanji (Chinese characters), hiragana, and katakana.
- history
The Tale of Genji, written around 1000 CE by Murasaki Shikibu, is considered the world's first novel.
- history
Japanese borrowed its writing system from Chinese but adapted it to fit a fundamentally different grammar.
Distinctive features
- lightbulb
Japanese uses three scripts simultaneously: kanji for content words, hiragana for grammar, and katakana for foreign words.
- lightbulb
Japanese has an elaborate honorific system (keigo) with distinct humble, polite, and respectful forms.
- lightbulb
The language is Subject-Object-Verb in word order, and the verb always comes at the end of the sentence.




