A Virtual Source is a point in space in which sound appears to be originating from, even though no physical source is present.
You can create two different types of Virtual Sources: Virtual Source Back and Virtual Source Front.
* **Virtual Source Back** creates a point in space behind an array and virtualizes a wavefront that emanates from this point in space.
* **Virtual Source Front** creates a point in space in front of an array and virtualizes a wavefront that converges on this point in space.
To add a Virtual Source to your array, you must first add an array using the **Create Array** option in the toolbar. Next, click **Create Virtual Source** in the contextual menu.
---
# 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://docs.holoplot.com/holoplot-plan/working-with-beams/creating-a-virtual-source.md?ask=
```
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.