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Diffstat (limited to 'plugins/devices/audio-dummy/README.md')
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diff --git a/plugins/devices/audio-dummy/README.md b/plugins/devices/audio-dummy/README.md new file mode 100644 index 0000000..4903d60 --- /dev/null +++ b/plugins/devices/audio-dummy/README.md @@ -0,0 +1,41 @@ +# Device: audio-dummy (acoustic bench) + +**Status:** `active` — development/test device for on-host acoustic signal evaluation. + +## Purpose + +Main **dummy device** for Bell 202 AFSK without RF: + +- **loopback** — full DSP encode/decode in process (CI default) +- **alsa** — capture from sound card, sniff/decode live +- **host** — TCP to `audio-dummyd` (M25 KISS host protocol, ports 8520/8521) + +## Tools + +```bash +# Internal loopback (no hardware): +stacks/crdop/tools/max25-signal-sniffer --loopback + +# ALSA capture sniff: +stacks/crdop/tools/max25-signal-sniffer -D plughw:1,0 -t 3 + +# Calibration tones (mark 1200 Hz / space 2200 Hz): +stacks/crdop/tools/max25-signal-sniffer -D plughw:1,0 --mark -t 1 +stacks/crdop/tools/max25-signal-sniffer -D plughw:1,0 --space -t 1 +``` + +## max25d + +```ini +[devices] +audio-dummy = audio:loopback + +[device.audio-dummy] +mode = loopback ; loopback | alsa | host +; capture = plughw:1,0 +; playback = plughw:1,0 +; sample_rate = 48000 +; host_port = 8520 +``` + +Docs: [docs/CRDOP.md](../../../docs/CRDOP.md) |