# EarCaster

- **Event:** [Meta Global AI Developer Hackathon](https://cerebralvalley.ai/e/meta-ai-developer-hackathon)
- **When:** Oct 26, 12:00 PM – Nov 4, 9:00 PM (EST)
- **Where:** Online
- **Team:** [David Mogollon](https://cerebralvalley.ai/u/damofer)
- **GitHub:** https://github.com/damofer/earcaster-meta-hackaton
- **Demo video:** https://youtube.com/shorts/gQHpGHCAUvU?feature=share
- **Gallery:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1276

Earcaster is a voice companion for people with dementia, built for my great-aunt, who has Alzheimer's and asks the same questions every day: what day is it, when is my family coming, did I take my pill. The Android app listens on her phone and answers in a calm voice.

During the hackathon I connected it to Meta's Muse Spark so it can answer the questions nobody predicted. The problem with a normal chatbot is that a person with dementia cannot tell an invented visit from a real one. So every sentence Muse Spark writes is checked in code before it is spoken: it is dropped if it tells her to take a medication, and replaced by "I don't have that written down" if it names a day, time, date, person or place that is not in her caregiver's profile, the shared family calendar or today's logged doses.

For the family who cares for her, Muse Spark also writes a daily summary, turns a WhatsApp message like "I'll be there Sunday at 5" into a calendar change that the caregiver approves, prepares a brief for relatives before a visit, and warns when a new worry starts repeating. In every feature the model writes and the code counts, traces and decides. Audio never leaves the phone and phone numbers are never sent to Meta.

## More from Meta Global AI Developer Hackathon

- [SustainAfrica LLc](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1273)
- [Project Saiga](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1274)
- [ClearFirst](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1275)
- [Childhood Confidence Learning Lab](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1277)
- [LoadMaster (Ghost Developer Studio)](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1278)
- [Breakfast](https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1279)

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Markdown version of https://cerebralvalley.ai/e/meta-ai-developer-hackathon/hackathon/gallery/1276. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt