Acorns Fired!

Acorns Fired! A self-hosted archive and player for scanner radio call recordings. Overview Acorns Fired! is a self-hosted web application for organizing and reviewing radio call recordings captured through sdrtrunk, an open-source software-defined radio decoder. sdrtrunk is great at capturing and decoding live radio traffic, but it leaves behind a folder full of individual audio files — useful to the software, not so useful to a person trying to find a specific call later. Acorns Fired! turns that raw output into something searchable and easy to browse. What it does Acorns Fired! automatically indexes new call recordings as they come in, logging the details that matter most: date, time, and talkgroup. The web interface lets you search that history and play back any call directly in the browser, without having to dig through a folder of audio files. The call list is kept intentionally simple, showing just what/when/who rather than technical metadata that's rarely useful day to day. Managing and labeling talkgroups is handled separately, keeping the main browsing experience clean and focused on finding and listening to calls. Calls can also be transcribed to text automatically, using speech-to-text models that run entirely on-device rather than relying on any cloud service. This keeps the transcription private and fast, and makes it possible to skim or search a call's content without listening to the audio first. Transcription can be turned on or off per talkgroup, so it's only applied where it's actually useful. Why I built it This started as a practical need: a way to go back and find a specific piece of radio traffic without remembering an exact timestamp or scrolling through an unsorted folder of recordings. It's become an ongoing project touching a few areas I enjoy working in — software defined radio, public safety, file monitoring, audio handling, and web application design — built around a tool I actually use.