# 如何開啟麥克風、視訊鏡頭?

加入課程時，您都是靜音、並關閉鏡頭，避免影響到課程進度。

開啟麥克風，請點選左下角【解除靜音】即可開啟麥克風，於課堂中發言。

開啟視訊鏡頭，請點選左下角【開啟視訊】即可開啟視訊鏡頭。


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://gtalent.gitbook.io/howtouse/live/mic.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.