# Node-red-contrib-wav (beta)
**URL:** https://discourse.nodered.org/t/node-red-contrib-wav-beta/8586
**Category:** Share Your Nodes
**Created:** [4 March 2019 08:11 UTC](https://discourse.nodered.org/t/node-red-contrib-wav-beta/8586 "2019-03-04T08:11:08Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)
#### Post date: [4 March 2019 08:11 UTC](https://discourse.nodered.org/t/node-red-contrib-wav-beta/8586/1 "2019-03-04T08:11:08Z")
Hi folks,
We had an interesting [discussion](https://discourse.nodered.org/t/play-sound-from-usb-microphone/2551/39) some time ago, about raw audio samples in Node-RED. In that discussion we needed to add a WAV headers to the raw audio samples, to make sure that other nodes know what those bytes represent (number of channels, number of bytes per sample, ...).
Got a question last weekend to publish that node on NPM. There is now a beta version available, which you can install like this:
```auto
npm install node-red-contrib-wav@1.0.0-beta.1
```
I have extended the node to support 3 actions:
- **Get the WAV header** in a human readable format, in case you want to know which kind of audio you are dealing with.
- **Add your own WAV header** to raw audio samples (PCM), based on the input you have specified in the config screen.
- **Remove the WAV header** to convert a WAV chunk to raw audio samples (PCM).
There is quite some information available on the [readme](https://github.com/bartbutenaers/node-red-contrib-wav/) page.
As always al '_constructive_' feedback is welcome.
Have fun with it!
Bart
---
### Author:  [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)
#### Post date: [8 March 2019 20:14 UTC](https://discourse.nodered.org/t/node-red-contrib-wav-beta/8586/2 "2019-03-08T20:14:22Z")
I managed to implement the massive amount of feedback, and have publish version **1.0.0** on NPM.