> For the complete documentation index, see [llms.txt](https://docs.engagevr.io/developer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.engagevr.io/developer/afx/node-dictionary/unity/component/audio/audio-source.md). # Audio Source ## Audio Source Info Access information about an Audio Source.

Name	Type	Description
Audio Source In	Audio Source	Reference to an Audio Source object.

**Outputs:**

Name	Type	Description
Is Playing	Boolean	True if the Audio Source is currently playing. Otherwise, false.
Time	Float	The number of seconds from the start of the audio clip that's currently being played.
Volume	Float	How loud the sound is.

## Set value nodes There are multiple nodes that you can use to set properties of an Audio Source. For more information, refer to the [Audio Source](https://docs.unity3d.com/2021.3/Documentation/Manual/class-AudioSource.html) page in the Unity documentation. The set nodes for an Audio Source have a similar arrangement of inputs and outputs, as described in the following sections.

Example set node for an Audio Source - the Set Audio Clip node

**Inputs:**

Name	Type	Description
Enter	Flow	Flow to activate the node.
Audio Source In	Audio Source	Reference to an Audio Source object.
<property>	<varies> [editable]	The value to set for the chosen property.

**Outputs:**

Name	Type	Description
Exit	Flow	Continue the activating flow.

**Available nodes:**

Name	Input type	Description
Set Audio Clip	Audio Clip	Sets the Audio Clip to be played.
Set Doppler Level	Float	Determines how much Doppler effect will be applied to this audio source (if is set to 0, then no effect is applied).
Set Loop	Boolean	If true, the audio clip repeats after it reaches the end.
Set Max Distance	Float	The distance where the sound stops attenuating at.
Set Min Distance	Float	Within the MinDistance, the sound will stay at loudest possible. Outside MinDistance it will begin to attenuate.
Set Mute	Boolean	If true, the audio is muted.
Set Pitch	Float	The pitch of the audio. 1.0 is normal pitch.
Set Play on Awake	Boolean	If true, the audio will begin to play when the scene loads. If false, you will need to play the audio.
Set Reverb Zone Mix	Float	Sets the amount of the output signal that gets routed to the reverb zones.
Set Spacial Blend	Float	Sets how much the 3D engine has an effect on the audio source.
Set Spread	Float	Sets the spread angle to 3D stereo or multichannel sound in speaker space.
Set Stereo Pan	Float	Sets the position in the stereo field of 2D sounds.
Set Volume	Float	The loudness of the sound.
Rolloff	[Parameter list]	How fast the sound fades. The available options are logarithmic, linear, or custom. For more information, refer to the Types of Rolloff section on the Audio Source page of the Unity documentation.