nanoaudio

Rust · no_std · Audio · DSP · 2026 - present

Allocation-free embedded audio processing: PCM conversion, mixing, ring buffers and codecs using caller-owned memory.

Overview

An allocation-free no_std audio processing library providing PCM conversion, mixing, volume control, DMA-friendly ring buffers, and codecs. Its routines operate on caller-provided buffers and are designed for integration into hardware drivers and operating systems. Code and examples.

Engineering approach

The library separates PCM sample processing from audio hardware and scheduling. Caller-owned buffers avoid implicit allocation and allow codecs, mixing and conversions to be embedded in device drivers.

Scope and limitations

Designed as a reusable library independent of one application. Refer to the upstream repository for current APIs, examples, platform constraints and supported versions.

Explore the project

Source repository, documentation or official result ↗

Related work: Model railway network · Connected speaker