> For the complete documentation index, see [llms.txt](https://docs.vdo.ninja/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vdo.ninja/advanced-settings/recording-parameters/and-pcm.md).

# \&pcm

PCM audio recordings

Sender-Side Option! ([`&push`](/advanced-settings/setup-parameters/push.md))

## Details

Video recordings will be saved as Video + PCM audio format.

### Converting and playing back WebM-PCM

WebM is a universal container of sorts when used within a Chromium browser, but it doesn't always work well for VLC or popular video editors. FFmpeg can be used to convert to other formats though, including MP4 and WAV, typically without transcoding.

To make converting from WebM to other formats easier, a version of FFmpeg is hosted within VDO.Ninja for this. It can be located here at <https://vdo.ninja/convert>, with several of the most common conversion options ready to go, such as WebM-PCM to WAV-PCM.

Due to memory limits and other browser limitations, this FFmpeg tool can only process files under about 2-gigabytes in size. For larger files, you may need to download and use a desktop version of [FFmpeg](https://ffmpeg.org/download.html) instead.

FFmpeg command lines are provided if you choose to run FFmpeg yourself locally, but if that is still to complicated, you can grab [Handbrake ](https://handbrake.fr/)for free; it's a GUI-based option that is fairly accessible.

## Related

{% content-ref url="/pages/-MZXYl\_nYDzfbdqy-AuC" %}
[\&record](/advanced-settings/recording-parameters/and-record.md)
{% endcontent-ref %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

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

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.vdo.ninja/advanced-settings/recording-parameters/and-pcm.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

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.
