Linus Torvalds, the creator of the Linux kernel, has shared a new personal open-source project called AudioNoise on GitHub. The initiative explores digital audio effects and signal processing through simple C implementations. It follows his earlier experiments with guitar pedals and emphasizes learning over professional use.
Linus Torvalds has published AudioNoise, a hobby-oriented open-source project on GitHub that focuses on experimenting with digital audio effects and signal processing. Best known for developing the Linux kernel, Torvalds blends his recent interest in guitar-pedal tinkering with basic digital-audio effects code in this endeavor.
The repository features small C implementations of effects such as delays, filters, and phasers. It also includes a Python visualizer, which Torvalds describes as written through “vibe-coding,” an intuitive and rapid style of development. According to the project's README, AudioNoise is designed as a learning exercise to explore the fundamentals of digital signal processing, rather than serving as a polished audio toolkit.
The effects are kept simple, avoiding complex techniques like FFT-based processing, and rely on basic IIR filters and delay loops to simulate “toy” pedal effects. This is not intended as an audio framework, library, or competitor to established DSP projects. Released under the GPL-2.0 license—the same as the Linux kernel—AudioNoise builds on Torvalds' prior GuitarPedal experiments, which involved analog circuit design and hardware for guitar pedals.
Those earlier efforts highlighted Torvalds' pursuits outside kernel development, involving circuit boards and soldering rather than software patches. AudioNoise has quickly garnered attention, amassing 1,300 stars and 46 forks on GitHub within a few days of release. Ultimately, the project remains a light-hearted personal exploration, offering a glimpse into how even a key figure in open source enjoys writing code for fun without commercial ambitions.
Published on January 11, 2026, AudioNoise underscores Torvalds' ongoing curiosity in diverse technical areas beyond his professional domain.
