# Play Audio
A detailed explanation of controls and interface functions are described in the section [State Machine Builder User Interface](https://docs.google.com/document/d/1-o5qSv4zTkzj7YSmRTkV4zezFq7lwU00FyTy0kw1l1U/edit#bookmark=id.6vu41emx3478).
1. Within the edit Simulation section of the HyperSkill Desktop application, navigate to the State Machine tab.
2. Click on the desired state and from the dropdown in either the entry or exit actions select the type Play Audio.
3. Press the + button to add the state to the action list.
4. From the  dropdown select your desired audio clip.
5. Set the Volume value, somewhere between the range of 0 to 1 to change the volume at which the Audio Clip will be played at.
6. You can set a delay (in seconds) that you want to wait for before the audio clip plays with the Delay field.
7. You can preview the audio with the selected volume settings by pressing the Preview Sound  button.
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