# Recorded signal decoding

> Run caller-chosen sigrok protocol decoders, such as UART or I2C, over an existing logic-signal recording and keep annotation text with sample ranges. It does not acquire samples or communicate with hardware.

- Type: Documentation
- Targets: Firmware · Protocol
- Category: Official REA: investigation guides
- Relationship: Official REA documentation
- Sources reviewed: 2026-10-17
- Added to the catalog: 2026-10-17
- Original resource: <https://github.com/morluto/rea/blob/main/docs/signal-recordings.md>
- Primary source: <https://github.com/morluto/rea/blob/808339f0b1cf3837445f392b5d5f1f362d64a27d/docs/signal-recordings.md>
- Catalog page: <https://awesomerea.org/resources/rea-signal-recordings/>
- Record JSON: <https://awesomerea.org/resources/rea-signal-recordings/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rea-signal-recordings/index.md)

## Requirements & limits

- Caller-supplied sigrok-cli 0.7.2 with libsigrokdecode on Linux, plus util-linux prlimit; macOS and Windows are refused. Listed in the rea-agents 6.5.0 release notes.
- The caller supplies decoder stacks, channel names and settings such as baud rate. Upstream’s fixture is a synthesized 9600-baud UART VCD and does not cover other formats, decoders or physical acquisition.

## Primary sources

1. <https://github.com/morluto/rea/blob/808339f0b1cf3837445f392b5d5f1f362d64a27d/docs/signal-recordings.md>
2. <https://github.com/morluto/rea/blob/3b79af28e80785afce9f5998d8f03289402a1847/CHANGELOG.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.