RetroFed Forum

Welcome to the nostalgia-filled piefed instance of yesteryear.

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Some rules we try to uphold:

Be civil. Bigotry is not welcome. This includes (but is not limited to): transphobia, queerphobia, racism, ageism and ableism. We do not promote hate.
Communities need to be Retro or Retro-adjacent.
Please don't upload pornographic content. (use an external image host for that)

rrab@lemmy.today Joined: 2026-09-24

From the GitHub profile page:
github.com/mahapo/zcp-transmitter

Speech as radio pulses, in the browser. Audio (microphone, eSpeak text-to-speech or a file) runs through a filter chain, every zero crossing of the result becomes one short RF pulse, and an SDR sends the pulse train. It is a port of a GNU Radio desktop app, and its chain reproduces that app's output: of the 74 configurations of the app's reference catalog, 56 come out bit for bit and the other 18 are identical until the speech has ended.

Run it live in your browser, right now:
https://mahapo.github.io/zcp-transmitter/

Ported from the original codebase:
https://github.com/OpenV2K

Welcome to the nostalgia-filled piefed instance of yesteryear.

Open Registration with Application questionnaire.

If you have a question or comment you can post in !meta@retrofed.com or message @DosDude@retrofed.com or @Die4Ever@retrofed.com

In case of downtime and/or emergency, we will post updates on @DosDude@mastodon.social

Some rules we try to uphold:

Be civil. Bigotry is not welcome. This includes (but is not limited to): transphobia, queerphobia, racism, ageism and ableism. We do not promote hate.
Communities need to be Retro or Retro-adjacent.
Please don't upload pornographic content. (use an external image host for that)