# Nekko　Real Time Translate

- **Event:** [OpenAI Voice Hack Night](https://cerebralvalley.ai/e/openai-voice-hack-night)
- **When:** Wed, May 27 at 3:00 – 9:00 PM (PDT)
- **Where:** 1515 3rd Street, San Francisco, CA
- **Team:** [Shohei Yukawa](https://cerebralvalley.ai/u/Shohei)
- **Demo video:** https://youtube.com/shorts/9q6bZZY6b-M?feature=share
- **Gallery:** https://cerebralvalley.ai/e/openai-voice-hack-night/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/openai-voice-hack-night/hackathon/gallery/18

Nekko Live Interpreter is an iOS app that turns your iPhone into a real-time bilingual voice interpreter, designed specifically for hackathon demos and pitches where Japanese presenters need to speak to an English-speaking audience (and vice versa).

You hold a single big button, speak in Japanese (or English), and the moment you release, a cute cat character (Nekko) speaks back the translation in the other language using OpenAI's Realtime API — all voice-to-voice, no typing, no waiting.

The whole UI is just "Nekko + one button" on purpose: during a demo or Q&A you don't have time to look at transcripts or pick a direction. Push-to-talk solves the noisy-room problem (we kept getting interrupted by ambient conversations), and the strict translator-only prompt prevents the model from replying conversationally to phrases like "translate this".

Built originally as a Mistral-based meeting recorder, we rebuilt the interpreter flow on top of OpenAI's gpt-realtime in ~1 day for this hackathon.

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Markdown version of https://cerebralvalley.ai/e/openai-voice-hack-night/hackathon/gallery/18. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt