Case study

gm1356-recordings: reading a sound meter through its USB-HID protocol

gm1356-recordings implements a Python client for live readings and stored logs from the Benetech GM1356 sound level meter. Its protocol notes describe eight-byte USB-HID reports, the 0xB5 import handshake, 0xC4 pull loop and packed recording samples. The author reports comparing decoded recordings with data on the device.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 1
Last commit: 2026-06-21
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Benetech GM1356 USB sound level meter.
Prerequisites: macOS or Linux, Python 3.8 or newer, and libhidapi.
License: MIT licence.

Cite

BibTeX

@misc{gm1356-recordings-case,
  title = {{gm1356-recordings: reading a sound meter through its USB-HID protocol}},
  howpublished = {\url{https://github.com/schappim/gm1356-recordings}},
  url = {https://github.com/schappim/gm1356-recordings},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/gm1356-recordings-case/}}
}

Plain text

gm1356-recordings: reading a sound meter through its USB-HID protocol. https://github.com/schappim/gm1356-recordings (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/gm1356-recordings-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · schappim/gm1356-recordings · Revision 3b8b3ed
PROTOCOL.md GitHub · schappim/gm1356-recordings · Revision 3b8b3ed