Japanese is spoken by more than 125 million people worldwide — primarily in Japan, with speakers around the world. But traditional translation tools struggle with real-world Japanese: fast speech, regional accents, or casual phrasing. Soniox App understands Japanese as it’s spoken – instantly, fluently, and in context – so you can travel freely and connect wherever you go.
From transit to restaurants, use Soniox App in every travel moment
Get around confidently.
At airports, stations, or street corners, Soniox App translates directions and announcements in Japanese instantly, even in noisy environments.
Order and dine with ease.
Order food, drinks or tickets. Understand questions and instructions in Japanese or any other language.
Check in smoothly.
Handle hotel check-ins, tours, or reservations in Japanese. Soniox App captures Japanese names, numbers, and details correctly every time.
Chat with locals and connect.
Say more than just hello. Understand and join Japanese conversations in real time. Soniox App interprets tone, pauses, and phrasing for smoother, more human Japanese translation.
Smarter translation designed for real-world travel moments
Hear and respond instantly, with zero setup.
When you’re on the move, conversations move fast (and feel even faster in Japanese). Soniox App detects and translates both Japanese and your language in real time, so you can focus on the exchange, not the app.
Speak naturally without slowing down.
Say what you need to say in your language. No need to pause, slow down, or find the perfect word. Soniox App understands speech as it flows – multiple speakers, interruptions, fast dialogue, or switching languages mid-sentence.
Understand every Japanese accent and dialect.
From regional Japanese to accented English, Soniox App adapts automatically to how people actually speak, capturing every nuance without loss of meaning.
Handle details flawlessly.
Whether it’s street names, flight numbers, or currencies, Soniox App keeps critical details intact so Japanese translations stay clear and reliable.
Follow the conversation, even in crowds.
Soniox App is trained on real-world Japanese so it works well in busy places, like transit hubs, cafes, or wherever travel takes you. Follow Japanese conversations with confidence, even with loud ambient noise.
Translate Japanese confidently, even with spotty connection.
No signal? No problem. Soniox App keeps recording your conversation securely while offline, then transcribes and translates it automatically once you’re reconnected.
Use it wherever your trip takes you
- Navigating airports, train stations, and public transit
- • Understanding Japanese announcements and audio guides
- • Asking Japanese-speaking locals for help, tips, or directions
- • Ordering in Japanese at restaurants, cafes, or food stalls
- • Joining group tours in Japanese and other languages
- • Shopping or bargaining in Japanese at markets
- • Talking with hotel staff or hosts
- • Getting help in emergencies abroad
Japanese transcription with industry-leading accuracy
Never miss a word in Japanese, even when it's fast, messy, accented, or hard to hear. That accuracy means fewer errors, better UX, and apps people can trust.
- Streams fluent, full-sentence output in real-time
- Handles regional Japanese accents, noise, and overlapping speech
- Built to perform across real-world conditions
Don't take our word for it. Use your own Japanese audio to compare Soniox against other providers live.
Soniox outperforms other providers for Japanese accuracy:
| Provider | Japanese WER |
|---|---|
| Soniox | 8.7% |
| OpenAI | 13.8% |
| 14.2% | |
| AWS | 16.2% |
| Azure | 14% |
| Deepgram | 11.7% |
| AssemblyAI | 14.8% |
| Speechmatics | 10.3% |
| ElevenLabs | 12% |
Give it a go
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The same API that powers our mobile app is available to developers.
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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.


