SourceVoice
Team consisting of a TeleMedC Senior Engineer and AI Orchestrator with expertise in embedded systems, PCB design, and high-agency 0-to-1 product development.
Project Description
SourceVoice is an AI-powered conversational agent that enables English-speaking customers to negotiate directly with Chinese injection molding manufacturers through natural voice conversations. The system bridges language and cultural barriers by providing real-time bilingual negotiation support.
Core Functionality:
The application simulates a realistic business negotiation scenario where:
Customer (User): Speaks in English via voice input
AI Manufacturer: Responds in Mandarin (spoken via TTS) with English translations displayed
Conversation Flow: Progressive requirement gathering → technical recommendations → price quotes → negotiation
Technical Implementation:
Voice Input: ElevenLabs Speech-to-Text API for real-time transcription
AI Agent: Google Gemini 2.5 Flash with specialized system prompt acting as Chinese manufacturer
Voice Output: ElevenLabs Text-to-Speech with Mandarin voice synthesis
Multimodal Display: Bilingual conversation interface showing both Mandarin (original) and English (translation)
Visual Components: 3D mold visualization and structured negotiation packages
Key Features:
Bilingual Voice Conversation: Seamless English-to-Mandarin voice interaction with real-time translation
Expert Knowledge System: Comprehensive injection molding expertise (materials, tooling, costs, technical specifications)
Intelligent Negotiation: Context-aware pricing, volume discounts, and payment term discussions
Visual Recommendations: Cost breakdowns, material recommendations, and technical specifications
Negotiation Package Generator: Bilingual scripts, critical questions, red flags, and tactics
How It Works:
User speaks requirements in English (e.g., “I need a watch casing, 42mm diameter, 5000 units”)
ElevenLabs STT transcribes the audio
Gemini AI processes the request as a Chinese manufacturer, responding in Mandarin
Response is displayed bilingually (Mandarin + English translation)
ElevenLabs TTS speaks the Mandarin response aloud
Conversation continues with progressive refinement and negotiation
Real World Impact:
Solves a critical problem for international businesses sourcing from China: language barriers, cultural differences, and lack of technical expertise in injection molding negotiations. This enables small-to-medium businesses to negotiate confidently without hiring translators or manufacturing consultants.
Demo Flow:
Start: “I need a watch casing”
Provide details: Dimensions, quantity, requirements
Receive: Technical recommendations, cost estimates, negotiation guidance
Negotiate: Price discussions, payment terms, lead times
Prior Work
Heavily modified Vercel base template: https://github.com/ai-ng/swift