DownloadVoiceTra is a powerful speech translation application designed to make communication easier during travel by instantly translating spoken phrases into multiple languages.
Developed with cutting-edge speech recognition, machine translation, and speech synthesis technologies by the National Institute of Information and Communications Technology (NICT), VoiceTra delivers accurate, real-time translations that help bridge language gaps. Whether you're navigating a foreign city or welcoming international visitors to Japan, VoiceTra acts as your personal language assistant—ideal for travel, tourism, and cross-cultural interactions.
The app supports 31 languages and is completely free to download and use. With a user-friendly interface, you can easily verify translation accuracy and even switch translation directions instantly, enabling smooth two-way conversations between speakers of different languages using just one device.
For languages that don’t support voice input, text input is available, allowing flexible use depending on your needs. While VoiceTra can function as a basic dictionary, it performs best when translating full sentences, as it leverages contextual understanding to generate more natural and accurate results.
Key Features:
Powered by NICT’s advanced AI-driven speech translation technology
Real-time voice-to-voice translation with high precision
Instant translation direction switching for seamless two-person dialogue
Text input support for languages without speech input functionality
Optimized for common travel scenarios such as:
- Transportation: Bus, train, rental car, taxi, airport, and transit
- Shopping & Dining: Ordering food, shopping, making payments
- Accommodation: Hotel check-in, check-out, reservation changes
- Sightseeing: Guided tours, assisting foreign guests, travel inquiries
Also recognized as a disaster preparedness tool for emergency communication
Designed primarily for travel-related conversations and real-world testing
Supported Languages:
Japanese, English, Chinese (Simplified), Chinese (Traditional), Korean, Thai, French, Indonesian, Vietnamese, Spanish, Myanmar (Burmese), Arabic, Italian, Ukrainian, Urdu, Dutch, Khmer, Sinhala, Danish, German, Turkish, Nepali, Hungarian, Hindi, Filipino, Polish, Portuguese, Brazilian Portuguese, Malay, Mongolian, Lao, and Russian
Important Notes and Limitations:
- An active internet connection is required for all functions
- Translation speed may vary based on network conditions
- Text input availability depends on the operating system’s keyboard support
- Display issues may occur if required fonts are not installed on your device
- Service may be temporarily unavailable during server maintenance or outages
- Users are responsible for data charges, including potentially high international roaming fees
- This app was developed for research and individual testing purposes, utilizing research-grade servers
- Recorded usage data helps improve future speech translation technologies
- For business or continuous commercial use, we recommend licensed private services based on VoiceTra technology
- Full details available in the Terms of Use
What's New in Version 9.0.4
Updated on August 20, 2024
- Added support for Android 14
