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OffAir

Firmware for Workshop System Computer (Music Thing Modular)

AM/Shortwave/Longwave radio simulator with heterodyne whistles, SSB detuning and swelling static.

by Andy Jenkinson (uglifruit)

ActiveSource: openMIT
Distribution
Prebuilt image you flash yourself
Source
github.com https://github.com/TomWhitwell/Workshop_Computer/tree/main/releases/95_offair2
Homepage
computer.musicthing.co.uk https://computer.musicthing.co.uk/programs/95-offair2/
Synced from
upstream metadata, raw.githubusercontent.com https://raw.githubusercontent.com/TomWhitwell/Workshop_Computer/main/releases/95_offair2/info.yaml. Corrections belong upstream.

Description

Tune across a virtual shortwave band the way you tune a real receiver. Two Stations and three interference signals are scattered across the dial and re-randomised on every band change. Approaching a Station you hear a sliding heterodyne whistle, the audio pulls into tune and the static ducks away; off-tune it frequency-shifts on SW and LW or distorts on AM. Knob X sets IF bandwidth and brightness, Knob Y the noise floor. Tap the switch down to cycle AM, SW and LW. Hold the switch up for dead air in baked-in mode, or a Pulse In 1-keyed morse Station 2 in audio-input mode. Pulse In 2 fires curated Insta-ference one-shots. Boot with the switch held down to swap the live inputs for baked recordings and make it self-contained.

Install notes

Copy the UF2 onto the Computer's program card (RP2040 bootloader drive).

Version history

OffAir version history
VersionDateNotes
1.0.12026-08-04Version and date from the card's info.yaml.

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