Update README

2023-11-30 11:40:23 -06:00
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 # Wyoming Satellite

-Satellite using the [Wyoming protocol](https://github.com/rhasspy/wyoming).
+Remote satellite using the [Wyoming protocol](https://github.com/rhasspy/wyoming).
+
+## Installation
+
+``` sh
+script/setup
+```
+
+You will need a Wyoming microphone and (optionally) a Wyoming sound service:
+
+* [wyoming-mic-external](https://github.com/rhasspy/wyoming-mic-external)
+    * Record audio with an external program like `arecord`
+* [wyoming-snd-external](https://github.com/rhasspy/wyoming-snd-external)
+    * Play audio with an external program like `aplay`
+
+
+## Example
+
+Start your microphone service and (optionally) your sound service. In this example, we will run the microphone service on port `10600` and the sound service on port `10601`.
+
+Start microphone service:
+
+``` sh
+script/run \
+  --program 'arecord -r 16000 -c 1 -f S16_LE -t raw' \
+  --rate 16000 \
+  --width 2 \
+  --channels 1 \
+  --uri 'tcp://127.0.0.1:10600'
+```
+
+Use `arecord -D <DEVICE> ...` if you need to use a different recording device (list them with `arecord -L` and prefer `plughw:` devices). Add `--debug` to print additional logs.
+
+In a separate terminal, start the sound service:
+
+``` sh
+script/run \
+  --uri 'tcp://127.0.0.1:10601' \
+  --program 'aplay -r 22050 -c 1 -f S16_LE -t raw' \
+  --rate 22050 \
+  --width 2 \
+  --channels 1
+```
+
+Use `aplay -D <DEVICE> ...` if you need to use a different playback device (list them with `aplay -L` and prefer `plughw:` devices). Add `--debug` to print additional logs.
+
+Lastly, start the satellite in a separate terminal:
+
+``` sh
+script/run \
+  --name 'test satellite' \
+  --uri 'tcp://0.0.0.0:10700' \
+  --mic-uri 'tcp://127.0.0.1:10600' \
+  --snd-uri 'tcp://127.0.0.1:10601'
+```
+
+This will run the satellite on port `10700` and use the local microphone/sound services. Add `--debug` to print additional logs.
+
+Audio will be continuously streamed to the server, where wake word detection, etc. will occur.
+
+### Local Wake Word Detection
+
+Install a wake word detection service, such as [wyoming-openwakeword](https://github.com/rhasspy/wyoming-openwakeword/) and start it:
+
+``` sh
+script/run \
+  --uri 'tcp://0.0.0.0:10400' \
+  --preload-model 'ok_nabu'
+```
+
+Add `--debug` to print additional logs. See `--help` for more information.
+
+Included wake words are:
+
+* `ok_nabu`
+* `hey_jarvis`
+* `alexa`
+* `hey_mycroft`
+* `hey_rhasspy`
+
+[Community trained wake words](https://github.com/fwartner/home-assistant-wakewords-collection) are also available and can be included with `--custom-model-dir <DIR>` where `<DIR>` contains `.tflite` file(s).
+
+Next, start the satellite with some additional arguments:
+
+``` sh
+script/run \
+  --name 'test satellite' \
+  --uri 'tcp://0.0.0.0:10700' \
+  --mic-uri 'tcp://127.0.0.1:10600' \
+  --snd-uri 'tcp://127.0.0.1:10601' \
+  --wake-uri 'tcp://127.0.0.1:10400' \
+  --wake-word 'ok_nabu'
+```
+
+Audio will only be streamed to the server after the wake word has been detected.
+
+### Event Service
+
+Satellites can respond to events from the server using an event service (`--event-uri`). See `wyoming_satellite/example_event_client.py` for a basic client that just logs events.
+
+Available events are:
+
+* `Detect` - start of wake word detection
+* `Detection` - wake word is detected
+* `VoiceStarted` - user has started speaking
+* `VoiceStopped` - user has stopped speaking
+* `Transcript` - text spoken by user
+* `Synthesize` - text response that will be spoken
+* `AudioStart` - response audio started
+* `AudioStop` - response audio stopped