> For the complete documentation index, see [llms.txt](https://documentation.astera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.astera.com/astera-data-stack-v9/functions/matching/soundex.md).

# Soundex

| **Name**    | ***Soundex***                                                                                                                             |
| ----------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| Syntax      | Soundex (String str)                                                                                                                      |
| Purpose     | To return Soundex value.                                                                                                                  |
| Description | Returns Soundex value for the given string. Soundex is a phonetic algorithm used for indexing words based on their English pronunciation. |
| Return Type | String                                                                                                                                    |
| Parameters  | str \[System.String] – String for which Soundex is returned.                                                                              |

![](https://github.com/astera-software/Astera_Data_Stack_v9/blob/main/.gitbook/assets/0%20\(4\).png)

**Example**

In this example, we are passing a string value to the function transformation object using a *Variables* object.

Where,

*str =* Hello World

![](https://github.com/astera-software/Astera_Data_Stack_v9/blob/main/.gitbook/assets/1%20\(4\).png)

In the output window, you can see that the Soundex value of the specified string has been returned.

![](https://github.com/astera-software/Astera_Data_Stack_v9/blob/main/.gitbook/assets/2%20\(4\).png)


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