# linux_voice_test verification

Date: 2026-05-25
Host: Fedora-based Linux sandbox host

## Commands

```bash
pkg-config --modversion libpipewire-0.3
pkg-config --modversion libspa-0.2
cd poc/linux_voice_test
cargo check
cargo run -- --list-devices
```

## Observed results

`pkg-config` resolved the product Linux capture dependencies successfully:

```text
libpipewire-0.3 -> 1.6.5
libspa-0.2 -> 0.2
```

Note: `pipewire-0.3` is not the correct pkg-config module name for the Rust
PipeWire crates used here; the expected module is `libpipewire-0.3`.

`cargo check` completed successfully after adding an empty `[workspace]` table
to `poc/linux_voice_test/Cargo.toml` so the PoC can build independently from
the root workspace.

`cargo run -- --list-devices` completed successfully and printed:

```text
Backend: pipewire
Input devices:
  [0] Brio 500 Analog Stereo [43]
  [1] Built-in Audio Analog Stereo [34]
Backend: pipewire
Output devices:
  [0] Built-in Audio Digital Stereo (IEC958) [46]
  [1] Navi 21/23 HDMI/DP Audio Controller Digital Stereo (HDMI 4) [50]
```

## What this does validate

- PipeWire crate dependencies compile on this host
- the host exposes the exact `libpipewire-0.3` and `libspa-0.2` pkg-config
  modules used by the product Linux capture backend
- PipeWire node enumeration works for both input and output
- the PoC can target real device node ids reported by the running desktop audio
  graph

## What this does not validate

- PulseAudio fallback runtime on this host
- full microphone-to-speaker loopback quality over an extended session
- Chanora product audio-engine integration
- push-to-talk, VAD, Opus, jitter buffering, or per-user playback controls