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Document sending Assist pipeline speech data (#1803)

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Joris Pelgröm 2023-07-13 00:24:11 +02:00 committed by GitHub
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docs/voice/pipelines/index.md
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@ -49,3 +49,14 @@ The following events can be emitted:
| `tts-end` | End of text to speech | audio only | `media_id` - Media Source ID of the generated audio<br />`url` - URL to the generated audio<br />`mime_type` - MIME type of the generated audio<br /> | | `tts-end` | End of text to speech | audio only | `media_id` - Media Source ID of the generated audio<br />`url` - URL to the generated audio<br />`mime_type` - MIME type of the generated audio<br /> |
| `error` | Error in pipeline | On error | `code` - Error code<br />`message` - Error message | | `error` | Error in pipeline | On error | `code` - Error code<br />`message` - Error message |
## Sending speech data
After starting a pipeline with `stt` as the first stage of the run and receiving a `stt-start` event, speech data can be sent over the WebSocket connection as binary data. Audio should be sent as soon as it is available, with each chunk prefixed with a byte for the `stt_binary_handler_id`.
For example, if `stt_binary_handler_id` is `1` and the audio chunk is `a1b2c3`, the message would be (in hex):
```
01a1b2c3
```
To indicate the end of sending speech data, send a binary message containing a single byte with the `stt_binary_handler_id`.