# rusty_esp_audio-core
[](https://github.com/remade-with-rust) [](https://www.mata.network) [](https://crates.io/crates/rusty_esp_audio-core) [](https://docs.rs/rusty_esp_audio-core) [](https://github.com/Remade-With-Rust/rusty_esp_audio/blob/main/LICENSE-MIT)
The pure half of the audio package: WAV, FLAC and ADPCM framing, a linear resampler, voice activity detection, and the fixed-block pipeline they feed — with no drivers, no allocator and no product types in it. `no_std` + `alloc`, `forbid(unsafe)`.
Every codec path here is gated **byte-identical against FFmpeg in both directions**: our decode of their blocks equals their decode, and their decode of our file equals ours.
## Where the evidence is
This crate is part of [`rusty_esp_audio`](https://crates.io/crates/rusty_esp_audio). The
hardware results, the method lines and the open defects live in that package's
[README](https://github.com/Remade-With-Rust/rusty_esp_audio#readme) and in
[`docs/LEDGER.md`](https://github.com/Remade-With-Rust/rusty_esp_audio/blob/main/docs/LEDGER.md), where no number
appears without the run that produced it.
## Part of Janus
**Janus** rebuilds the Espressif ESP32 and Arduino application portfolio as
independent, memory-safe Rust packages — so a hardware maker can ship a device
that the [MATA](https://www.mata.network) home computer discovers, catalogs honestly, adopts
under its own identity, and pays for. Ten packages, three layers, and the
dependency direction never reverses.
| layer | packages |
|---|---|
| **0 — the vocabulary** | [`rusty_esp_core`](https://crates.io/crates/rusty_esp_core) · [`rusty_esp_dsp`](https://crates.io/crates/rusty_esp_dsp) |
| **1 — the functions** | [`rusty_esp_image`](https://crates.io/crates/rusty_esp_image) · [`rusty_esp_video`](https://crates.io/crates/rusty_esp_video) · [`rusty_esp_audio`](https://crates.io/crates/rusty_esp_audio) · [`rusty_esp_signal`](https://crates.io/crates/rusty_esp_signal) · [`rusty_esp_mid`](https://crates.io/crates/rusty_esp_mid) · [`rusty_esp_iroh`](https://crates.io/crates/rusty_esp_iroh) |
| **2 — the surfaces** | [`rusty_esp_arduino`](https://crates.io/crates/rusty_esp_arduino) — the sketch facade · `espino` — the maker's CLI (not published) |
Every package is host-verified against an external oracle and keeps a ledger
in which no number appears without the run that produced it. **Five of seven
device profiles have now run their kill tests on real silicon**, three of them
over a Wi-Fi network the board hosts itself.
Also check out the rest of [Remade With Rust](https://github.com/remade-with-rust) — including
[`rusty_alloc`](https://crates.io/crates/rusty_alloc), the pure-Rust rebuild of
mimalloc that these firmwares run on, and
[`rusty_jpeg`](https://crates.io/crates/rusty_jpeg), the JPEG engine behind the
camera path — and our sister project
[remade_ffmpeg_rs](https://github.com/Remade-With-Rust/remade_ffmpeg_rs), a ground-up Rust rebuild of FFmpeg.
## About Mata Network
[Mata Network](https://www.mata.network) builds sovereign, self-hostable infrastructure.
**Remade With Rust** is our open-source home for the permissively-licensed
building blocks that work depends on.
## License
MIT OR Apache-2.0, at your option. See [LICENSE-MIT](https://github.com/Remade-With-Rust/rusty_esp_audio/blob/main/LICENSE-MIT)
and [LICENSE-APACHE](https://github.com/Remade-With-Rust/rusty_esp_audio/blob/main/LICENSE-APACHE).