MurMur is a lightweight desktop app that routes, transcribes, translates into English, and records system audio in real time — entirely locally, with no cloud dependency.

With a simple two-pane interface, spoken input is automatically recognized and displayed almost live as text. Optionally, an English translation is generated at the same time.

A special strength of MurMur lies in its ability to route desktop audio through virtual devices like BlackHole or Loopback, adjust levels with virtual gain, and export recordings directly as MP3. A creative bonus use case is combining it with Shazam for Mac to reliably identify songs playing on the computer — free from any ambient noise.

All processing runs locally on the machine, ensuring maximum data privacy and low latency.