# Audio

## Receiving Audio

### Setup in the Devices window

In order to create a device, right-click on the *Devices* window and choose **Audio Input.**

<div align="left"><img src="/files/BlwPOAP3aV2JdN2tosLK" alt=""></div>

Under the *Stream* collapsible header choose which audio input you want to use and click **Receive** if you want to start receiving audio data.

<div align="left"><img src="/files/bruLPeR5bO5cPKJUMVaM" alt=""></div>

### Receiving Timecode (LTC)

With only the **Audio input** device it is possible to receive timecode (LTC). All you need to do is choose proper input under the *Stream* collapsible header, click **Receive,** then click **Parse LTC** and start your timcode (LTC) sender.

<div align="left"><img src="/files/7NkNtwDZPDytyTh7rlZl" alt=""></div>

{% hint style="warning" %}
If LightAct doesn't seem to detect LTC, please check that the volume of your LTC source is high enough.
{% endhint %}

<div align="left"><figure><img src="/files/vejjwa40eTW6gKPW5GVM" alt=""><figcaption></figcaption></figure></div>

You can also set a timecode offset, which will affect all subsequent operations with this timecode.

## Playing Audio

### Setup in the Devices window

In order to create a device, right-click on the *Devices* window and choose **Audio Output.**

<figure><img src="/files/QOFsqM5fZY81ohyd1NTJ" alt=""><figcaption></figcaption></figure>

Under the *Stream* collapsible header choose which audio output you want to use and click **Play** if you want to start playing (sending to the output) audio data.

<div align="left"><figure><img src="/files/8pftjMMNOSaBnFWYex9y" alt=""><figcaption></figcaption></figure></div>

### Setup in the Layouts window

{% hint style="info" %}
**Good to know:** in most cases you will be using [Audio layer template](/layers-and-layouts/stock-layer-templates/content-layer-templates/audio-template.md) to play audio.
{% endhint %}

If you want to build a layer that can play audio from scratch, you would first need to create a **Blank layer**.

<div align="left"><figure><img src="/files/ZytGCLizBzlha3o4JjjM" alt=""><figcaption></figcaption></figure> <figure><img src="/files/oMzYtsyQnTOYE8yhDck7" alt=""><figcaption></figcaption></figure></div>

Then you would want to create a node called **Play Audio (from Asset)**. Then you just need to connect it the way you want.


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