With Link Audio in Live 12.4 I built a small open-source tool I thought I'd share:
RPi-LinkAudio turns a headless Raspberry Pi into a Link Audio source. It captures any (analog) audio source through a USB audio interface and streams it straight into Live as a Link Audio input over the LAN — no audio interface on the host machine, no virtual audio device. It also optionally generates a Link→MIDI clock (24 PPQN + start/stop) for external gear.
My use case: a Nord Modular G2 in another room → into Live, in sync. But it works with any line-level source (synth, mixer, instrument…).
* Repo: https://github.com/ty-art-ty/rpi-linkaudio
* Built & tested on a Raspberry Pi (64-bit) / ClockworkPi uConsole, aarch64.
Use wired Ethernet on both ends; WiFi causes periodic dropouts.
It's GPL-2.0 (built on Ableton Link). Feedback and testers welcome!