A voice-based language learning companion that helps you practice speaking Spanish through natural conversations, just like chatting with a friend through audios on WhatsApp.
Interface and transcriptions available. The image shows an example of light feedback.
Interface for the final/detailed feedback. The image shows an example of the detailed feedback.
Tandem Buddy is an AI-powered language practice app that simulates real conversations in Spanish. Unlike traditional language apps, it focuses purely on speaking practice.
🙅♀️ No typing, no multiple choice questions, just 🗣️ natural conversation practice.
- 🎙️ Voice-Only Conversations: Practice speaking naturally through audio messages, similar to WhatsApp voice notes
- 💬 Real-time Light Feedback: Get gentle corrections during your conversation without breaking the flow
- 📊 Comprehensive End Report: Receive detailed feedback on your performance after each session (currently in English)
- 🎯 B1-C1 Level Focus: Designed for intermediate learners who can already hold basic conversations
- 🤖 Natural AI Responses: Powered by OpenAI's language models for realistic conversation
- 🔊 High-Quality Audio: Uses ElevenLabs for natural-sounding Spanish speech
This is an early version with the following capabilities:
- ✅ Spanish conversation practice
- ✅ Real-time feedback on : grammar, syntax, vocabulary, etc.
- ✅ Detailed post-conversation analysis
⚠️ Final feedback currently in English only⚠️ Spanish is the only supported language right now
- Start a conversation with your Tandem Buddy
- Speak naturally in Spanish using voice messages
- Receive light, non-intrusive corrections as you go
- At the end of your session, get a comprehensive feedback report
- Speech Generation: ElevenLabs
- Language Model: OpenAI
- Interface: Gradio
- Target Language: Spanish
- Feedback Language: English
Future improvements planned:
- Add more language support beyond Spanish
- Localize final feedback (Spanish and other languages)
- Multi-level support (A2, B2, C1, etc.)
- Progress tracking over time
- Level evaluation
- Practice describing images
- Language proficiency exam's practice
- Intermediate Spanish level (around B1)
- Microphone access
- Stable internet connection
Launch the app using:
docker-compose up
docker build -t tandem-buddy-app .
Running the docker container with the env parameter. Bare in mind that the docker needs a very specific formatting. If possible opt to use the docker-compose instead.
docker run -it --rm -p 7860:7860 --env-file $(pwd)/.env tandem-buddy-app
python -m venv .venv
source .venv/bin/activate
pip install .
python app.pyThis app is under active development. Your feedback is valuable!
📧 Contact: coffeedrunkpanda.studio@gmail.com
Personal/Educational Use: Free and open source
Commercial Use: Requires a paid license
CC BY-NC 4.0 - See LICENSE file for details.
Built with ❤️ for language learners who want to actually speak the language they're learning.