Multilingual Support & Speech Synthesis
29+ Spoken Global Languages Running 100% On-Device
Full offline ASR, translation, and neural speech synthesis across 29+ global languages including 7 specialized Indian languages, processed with instant language switching and zero cloud API charges.
29+ Shipping Languages with Purpose-Built Regional Speech Models
The DIHUAVA multilingual stack delivers complete speech recognition, translation, and neural voice synthesis across 29+ shipping global languages running 100% on local edge hardware with zero per-minute cloud API fees.
A major breakthrough is our dedicated support for 7 Indian regional languages: Hindi, Tamil, Telugu, Kannada, Bengali, Marathi, and Gujarati. Standard cloud speech vendors struggle with non-Latin script phonemes on local hardware. We built specialized speech recognition and synthesis models specifically trained for these regional scripts, delivering fluid, natural conversations at international airports, retail malls, and government venues.
Engineering Guarantee
- ✓100% On-Device GPU Processing (Zero Cloud Ping)
- ✓Deterministic Low-Latency Lip-Sync
- ✓Air-Gapped Data Security Compliant with GDPR/HIPAA
- ✓24/7 Continuous Commercial Hardware Reliability
Feature Demonstration Videos
Select a demonstration below to inspect local-first execution.
The Multilingual Wall (Fast Cuts Across 6 Languages)
Duration: 0:30Same question asked back-to-back in English, Spanish, Mandarin, Hindi, Arabic, and French with instant neural speech synthesis.
Micro-Features & Engineering Detail
29+ Global Spoken Languages
Native offline speech processing across English, Spanish, Mandarin, Japanese, Korean, Arabic, Russian, French, German, and 20+ additional languages.
7 Specialized Indian Regional Languages
Purpose-built speech recognition and synthesis models for Hindi, Tamil, Telugu, Kannada, Bengali, Marathi, and Gujarati.
100% Offline Speech Execution
Speech recognition, translation, LLM dialogue, and voice synthesis run locally on the kiosk. Zero per-minute cloud API charges.
Real-Time Automatic Language Switching
Detects the visitor's spoken language upon their first sentence, automatically switching dialogue language instantly.
Voice Clone Accent Preservation
Maintains your brand avatar's custom neural voice profile across all 29+ supported languages with natural accent inflections.
Sticky Language Selection
Allows venue operators to pin a specific default language per persona or automatically revert to the venue's default after each session.
Localized Phoneme & Speech Pauses
Applies native dialect pronunciation rules and natural pauses so speech output sounds respectful and human.
Zero Cloud Dependency Guarantee
Operates perfectly in air-gapped environments, underground transit stations, or places with zero network connectivity.
How It Works End-to-End
Visitor Speaks in Any Language
A visitor approaches the kiosk and speaks naturally in English, Hindi, Spanish, Arabic, or any of the 29+ supported languages.
Local ASR & Language Identification
On-device ASR recognizes speech and identifies the language instantly, mapping vocabulary against client document terms.
Local LLM Dialogue & Translation
The local AI engine processes the query, retrieves grounded knowledge, and formulates the response in the visitor's language.
Neural Speech Synthesis & Lip-Sync
On-device neural TTS synthesizes speech at 24kHz in the avatar's cloned voice with real-time 60 FPS lip-sync.
Input Requirements Checklist
Primary Industry Applications
Frequently Asked Questions
Which Indian languages are supported offline?
We natively support 7 Indian languages offline: Hindi, Tamil, Telugu, Kannada, Bengali, Marathi, and Gujarati, using specialized edge models.
Do cloud speech services charge per minute when using this system?
No. All speech recognition, translation, and voice synthesis run locally on your device hardware, incurring $0 in per-minute API fees.
How fast does the avatar switch languages?
Language detection and switching happen instantly as soon as the visitor speaks their first sentence.
Can we lock the avatar to only speak English and Arabic?
Yes. Operators can restrict allowed languages or pin a sticky default language per venue persona.
Bring intelligent AI
experiences to your business.
Discover how HS Global AI can transform customer engagement with AI Digital Humans, holographic experiences, spatial displays, and intelligent on-device solutions.