antimattr: Earbuds for Your Voice, a Ring for Your Agents

When the room gets loud

Try dictating a note on a crowded train. A phone microphone can hear the conversations around you as clearly as it hears you. The same problem shows up when you take a call in a café. [1][3]

Antimattr is building Project Mnemosyne for those moments. Its earbuds are designed to isolate the wearer’s voice, and its ring gives the wearer a way to capture a thought or trigger a task. [1][2]

A tap and a few words

The earbuds handle calls and dictation. The ring provides a physical control. A tap can start a recording or trigger an agent workflow when the wearer’s phone is out of reach. [1][2]

Co-founder Sridipto Ghosh gave an example of where he wants this to go. If a coding agent is waiting for input, the ring could signal that it needs attention. The wearer could tap to respond or add a spoken instruction. [2][4]

What the founders learned from voice software

Ghosh and Sirsho Chakraborty spent a year building voice agents before starting antimattr. Their software ran into the same problem when users left a quiet room for a café, a train or an open office. Everyday microphones picked up everything around them. [3]

Ghosh and Chakraborty have known each other since childhood. They built their first company after college and joined Y Combinator’s Fall 2026 batch with antimattr. The team is taking early-access reservations for Project Mnemosyne. [1][2][3]

The bigger picture

A thought can disappear while you find your phone and open an app. Antimattr wants the interaction to start with a tap and the sound of your voice. [1][3]