ECHO
LEARN
The interesting friend who makes you better without you noticing.
Speaking Practice
AI TUTOR
ElevenLabs
BrightData
Luca · Nicole
LotusHacks 2026 · EdTech Track by ETEST
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
01 · THE PROBLEM
ECHOLEARN
WHY ENGLISH PRACTICE FAILS
Two problems.
One product.
The Cognitive Double-Burden
Students decode a foreign language AND engage with unfamiliar academic topics simultaneously. The brain is fighting on two fronts. Anxiety spikes. Engagement collapses.
The Emotional Tax
Duolingo guilt-trips. Streaks shame. Apps are clingy exes who make you feel bad for not showing up. Students avoid the tool meant to help them.
7M+
Vietnamese students sit IELTS or TOEFL annually.
SEA is the fastest-growing English exam market in the world.
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
02 · THE SOLUTION
ECHOLEARN
"
EchoLearn doesn't assign practice.
It starts a conversation.
⚡
The Scholar
Every student builds a personal AI mentor — a character with a world, a role, and a name. The creation IS the interest profiling. No forms. No surveys.
🚕
The Taxi Ride
Each session is a ride. The Scholar has something for you. You talk. You arrive. Beginning, middle, end. Speaking practice that never feels like practice.
🛂
The Passport
Progress as a journey, not a score. Stamps for milestones. A weekly Wrapped-style recap from the Scholar. Narrative, not numbers.
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
03 · HOW IT WORKS
ECHOLEARN
THE DEMO LOOP — 5 MINUTES END TO END
Setup → Engagement → Conversation → Progress
01
Build your Scholar
Choose a world, a role, a name. Cyberpunk city. Fantasy realm. Hidden academy. Every choice secretly captures your interest profile.
02
The Scholar surfaces a bait
Immediately after creation, the Scholar says: 'I already found something for you.' Real content from your interest universe. BrightData.
03
The conversation
You speak. The Scholar listens, responds in its own voice (ElevenLabs), and corrects your English invisibly — woven into its speech, never flagged.
04
The Passport
Session ends. Your personal Passport appears — key words learned, topics covered, a closing line written about this specific conversation.
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
04 · THE SCIENCE
ECHOLEARN
WHY IT ACTUALLY WORKS
Implicit Correction.
The most effective technique in second-language acquisition research. Now powered by AI.
STUDENT SAYS
"He speak English very confidence."
SCHOLAR REPLIES
"Yeah — the confidence he spoke with caught everyone off guard. What did you think of the moment he paused before answering?"
❌ No correction flagged. ✓ Correct form echoed back naturally.
Recasting
Teachers have used this for decades. The correct form is woven back into natural speech. The student hears it. Absorbs it. Never feels corrected.
Interest-driven input
When the topic is something the student cares about, cognitive load drops. The brain stops fighting the language and starts using it.
No performance anxiety
Progress as a passport, not a score. Conversation as a ride, not a test. The emotional design is as deliberate as the technical one.
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
05 · TECHNOLOGY
ECHOLEARN
HOW WE BUILT IT
Three APIs. One seamless loop.
ELEVENLABS
The Scholar's Voice
Natural, characterful, accent-aware TTS. Not generic text-to-speech — a voice that belongs to a character.
SPONSOR CHALLENGE
OPENAI GPT-4o mini
The Scholar's Brain
System prompt dynamically built from world + role + name. Implicit correction encoded directly into prompt architecture.
CONVERSATION ENGINE
BRIGHTDATA
The Scholar's Eyes
Real-time scraping pipeline pulls content from the student's interest universe — gaming news, K-pop, anime, history drops.
SPONSOR CHALLENGE
Web Speech API
Student voice input
Google Stitch
UI design system
HTML · CSS · JS
Single-file demo
Chrome localhost
Demo environment
The full loop: student speaks → Web Speech API → OpenAI generates reply → ElevenLabs speaks it → BrightData fuels the next topic. End-to-end in under 3 seconds.
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
06 · MARKET & IMPACT
ECHOLEARN
THE OPPORTUNITY
7M+
Vietnamese students
sit IELTS/TOEFL annually
#1
Fastest-growing
English exam market: SEA
$4.5B
Global English language
learning market by 2030
Why EchoLearn wins in this market
✓
Interest-driven content removes the cognitive double-burden — the core reason existing tools fail
✓
No guilt, no streaks, no shame — emotional design that makes students come back
✓
Every Scholar is unique — personalization that scales to any interest, any culture, any topic
✓
Speaking is the hardest skill to practice alone — and the highest-anxiety for exam students
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
07 · ROADMAP
ECHOLEARN
WHAT COMES NEXT
The MVP is one skill,
one Scholar, one loop.
The vision is much larger.
NOW · MVP — Speaking
→ 4 Scholar worlds
→ Role + name creation
→ Live ElevenLabs voice
→ Implicit correction
→ Personalized Passport
V1.0 · Full Platform
→ Real-time BrightData pipeline
→ Weekly Wrapped recap
→ Passport milestone stamps
→ Scholar world expansion
→ Multiple sessions + history
V2.0 · All 4 Skills
→ Reading + Writing + Listening
→ Scholar adapts per skill
→ IELTS/TOEFL track mode
→ Progress analytics
→ School & institution plans
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData
Duolingo is a clingy ex.
EchoLearn is the interesting friend
who makes you better without you noticing.
Built with ElevenLabs + BrightData
Luca & Nicole · LotusHacks 2026 · EdTech Track
SEE THE DEMO
Live. Right now.
Built tonight.
LotusHacks 2026 · EdTech Track · ElevenLabs + BrightData