# AudioEchoFilter

> The Audio Echo Filter repeats a sound after a given Delay, attenuating the repetitions based on the Decay Ratio.

## Definition

* **Type:** Class
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.AudioModule
* **Inherits from:** [Behaviour](/engine/6000.0/script-reference/unityengine/behaviour.md)

```csharp
[RequireComponent(typeof(AudioBehaviour))]
public sealed class AudioEchoFilter : Behaviour
```

## Remarks

Additional Resources: [Audio Echo Filter](/engine/6000.0/manual/audio/reference/filters/class-audio-echo-filter.md) information.

## Properties

| Property                                                                                | Description                                                                                                |
| --------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
| [decayRatio](/engine/6000.0/script-reference/unityengine/audioechofilter/decayratio.md) | Echo decay per delay. 0 to 1. 1.0 = No decay, 0.0 = total decay (i.e. simple 1 line delay). Default = 0.5. |
| [delay](/engine/6000.0/script-reference/unityengine/audioechofilter/delay.md)           | Echo delay in ms. 10 to 5000. Default = 500.                                                               |
| [dryMix](/engine/6000.0/script-reference/unityengine/audioechofilter/drymix.md)         | Volume of original signal to pass to output. 0.0 to 1.0. Default = 1.0.                                    |
| [wetMix](/engine/6000.0/script-reference/unityengine/audioechofilter/wetmix.md)         | Volume of echo signal to pass to output. 0.0 to 1.0. Default = 1.0.                                        |

## Inheritance

**Inherited Members:**

* [Behaviour.enabled](/engine/6000.0/script-reference/unityengine/behaviour/enabled.md)
* [Behaviour.isActiveAndEnabled](/engine/6000.0/script-reference/unityengine/behaviour/isactiveandenabled.md)
* [Component.GetComponent(Type)](/engine/6000.0/script-reference/unityengine/component/getcomponent.md#getcomponent\(type\))
* [Component.GetComponent\<T>()](/engine/6000.0/script-reference/unityengine/component/getcomponent.md)
* [Component.TryGetComponent(Type, Component)](/engine/6000.0/script-reference/unityengine/component/trygetcomponent.md)
* [Component.TryGetComponent\<T>(T)](/engine/6000.0/script-reference/unityengine/component/trygetcomponent.md)
* [Component.GetComponent(string)](/engine/6000.0/script-reference/unityengine/component/getcomponent.md#getcomponent\(string\))
* [Component.GetComponentInChildren(Type, bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentinchildren.md#getcomponentinchildren\(type-bool\))
* [Component.GetComponentInChildren(Type)](/engine/6000.0/script-reference/unityengine/component/getcomponentinchildren.md#getcomponentinchildren\(type\))
* [Component.GetComponentInChildren\<T>(bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentinchildren.md)
* [Component.GetComponentsInChildren(Type, bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentsinchildren.md)
* [Component.GetComponentsInChildren\<T>(bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentsinchildren.md#getcomponentsinchildrent\(bool\))
* [Component.GetComponentsInChildren\<T>(bool, List\<T>)](/engine/6000.0/script-reference/unityengine/component/getcomponentsinchildren.md)
* [Component.GetComponentsInChildren\<T>()](/engine/6000.0/script-reference/unityengine/component/getcomponentsinchildren.md#getcomponentsinchildrent\(\))
* [Component.GetComponentsInChildren\<T>(List\<T>)](/engine/6000.0/script-reference/unityengine/component/getcomponentsinchildren.md)
* [Component.GetComponentInParent(Type, bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparent\(type-bool\))
* [Component.GetComponentInParent(Type)](/engine/6000.0/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparent\(type\))
* [Component.GetComponentInParent\<T>(bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparentt\(bool\))
* [Component.GetComponentInParent\<T>()](/engine/6000.0/script-reference/unityengine/component/getcomponentinparent.md#getcomponentinparentt\(\))
* [Component.GetComponentsInParent(Type, bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentsinparent.md)
* [Component.GetComponentsInParent\<T>(bool)](/engine/6000.0/script-reference/unityengine/component/getcomponentsinparent.md#getcomponentsinparentt\(bool\))
* [Component.GetComponentsInParent\<T>(bool, List\<T>)](/engine/6000.0/script-reference/unityengine/component/getcomponentsinparent.md)
* [Component.GetComponentsInParent\<T>()](/engine/6000.0/script-reference/unityengine/component/getcomponentsinparent.md#getcomponentsinparentt\(\))
* [Component.GetComponents(Type)](/engine/6000.0/script-reference/unityengine/component/getcomponents.md#getcomponents\(type\))
* [Component.GetComponents(Type, List\<Component>)](/engine/6000.0/script-reference/unityengine/component/getcomponents.md#getcomponents\(type-listcomponent\))
* [Component.GetComponents\<T>(List\<T>)](/engine/6000.0/script-reference/unityengine/component/getcomponents.md)
* [Component.GetComponents\<T>()](/engine/6000.0/script-reference/unityengine/component/getcomponents.md#getcomponentst\(\))
* [Component.GetComponentIndex()](/engine/6000.0/script-reference/unityengine/component/getcomponentindex.md)
* [Component.CompareTag(string)](/engine/6000.0/script-reference/unityengine/component/comparetag.md#comparetag\(string\))
* [Component.CompareTag(TagHandle)](/engine/6000.0/script-reference/unityengine/component/comparetag.md#comparetag\(taghandle\))
* [Component.SendMessageUpwards(string, Object, SendMessageOptions)](/engine/6000.0/script-reference/unityengine/component/sendmessageupwards.md#sendmessageupwards\(string-object-sendmessageoptions\))
* [Component.SendMessageUpwards(string, SendMessageOptions)](/engine/6000.0/script-reference/unityengine/component/sendmessageupwards.md#sendmessageupwards\(string-sendmessageoptions\))
* [Component.SendMessage(string, Object)](/engine/6000.0/script-reference/unityengine/component/sendmessage.md#sendmessage\(string-object\))
* [Component.SendMessage(string)](/engine/6000.0/script-reference/unityengine/component/sendmessage.md#sendmessage\(string\))
* [Component.SendMessage(string, Object, SendMessageOptions)](/engine/6000.0/script-reference/unityengine/component/sendmessage.md#sendmessage\(string-object-sendmessageoptions\))
* [Component.SendMessage(string, SendMessageOptions)](/engine/6000.0/script-reference/unityengine/component/sendmessage.md#sendmessage\(string-sendmessageoptions\))
* [Component.BroadcastMessage(string, Object, SendMessageOptions)](/engine/6000.0/script-reference/unityengine/component/broadcastmessage.md#broadcastmessage\(string-object-sendmessageoptions\))
* [Component.BroadcastMessage(string, SendMessageOptions)](/engine/6000.0/script-reference/unityengine/component/broadcastmessage.md#broadcastmessage\(string-sendmessageoptions\))
* [Component.transform](/engine/6000.0/script-reference/unityengine/component/transform.md)
* [Component.gameObject](/engine/6000.0/script-reference/unityengine/component/gameobject.md)
* [Component.tag](/engine/6000.0/script-reference/unityengine/component/tag.md)
* [Object.GetInstanceID()](/engine/6000.0/script-reference/unityengine/object/getinstanceid.md)
* [Object.GetHashCode()](/engine/6000.0/script-reference/unityengine/object/gethashcode.md)
* [Object.InstantiateAsync\<T>(T)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, Transform)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, Vector3, Quaternion)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, Transform, Vector3, Quaternion)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, Transform)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, Vector3, Quaternion)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, ReadOnlySpan\<Vector3>, ReadOnlySpan\<Quaternion>)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, Transform, Vector3, Quaternion)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, Transform, Vector3, Quaternion, CancellationToken)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, Transform, ReadOnlySpan\<Vector3>, ReadOnlySpan\<Quaternion>)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, Transform, ReadOnlySpan\<Vector3>, ReadOnlySpan\<Quaternion>, CancellationToken)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, InstantiateParameters, CancellationToken)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, InstantiateParameters, CancellationToken)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, Vector3, Quaternion, InstantiateParameters, CancellationToken)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, Vector3, Quaternion, InstantiateParameters, CancellationToken)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.InstantiateAsync\<T>(T, int, ReadOnlySpan\<Vector3>, ReadOnlySpan\<Quaternion>, InstantiateParameters, CancellationToken)](/engine/6000.0/script-reference/unityengine/object/instantiateasync.md)
* [Object.Instantiate(Object, Vector3, Quaternion)](/engine/6000.0/script-reference/unityengine/object/instantiate.md#instantiate\(object-vector3-quaternion\))
* [Object.Instantiate(Object, Vector3, Quaternion, Transform)](/engine/6000.0/script-reference/unityengine/object/instantiate.md#instantiate\(object-vector3-quaternion-transform\))
* [Object.Instantiate(Object)](/engine/6000.0/script-reference/unityengine/object/instantiate.md#instantiate\(object\))
* [Object.Instantiate(Object, Scene)](/engine/6000.0/script-reference/unityengine/object/instantiate.md#instantiate\(object-scene\))
* [Object.Instantiate\<T>(T, InstantiateParameters)](/engine/6000.0/script-reference/unityengine/object/instantiate.md)
* [Object.Instantiate\<T>(T, Vector3, Quaternion, InstantiateParameters)](/engine/6000.0/script-reference/unityengine/object/instantiate.md)
* [Object.Instantiate(Object, Transform)](/engine/6000.0/script-reference/unityengine/object/instantiate.md#instantiate\(object-transform\))
* [Object.Instantiate(Object, Transform, bool)](/engine/6000.0/script-reference/unityengine/object/instantiate.md#instantiate\(object-transform-bool\))
* [Object.Instantiate\<T>(T)](/engine/6000.0/script-reference/unityengine/object/instantiate.md)
* [Object.Instantiate\<T>(T, Vector3, Quaternion)](/engine/6000.0/script-reference/unityengine/object/instantiate.md)
* [Object.Instantiate\<T>(T, Vector3, Quaternion, Transform)](/engine/6000.0/script-reference/unityengine/object/instantiate.md)
* [Object.Instantiate\<T>(T, Transform)](/engine/6000.0/script-reference/unityengine/object/instantiate.md)
* [Object.Instantiate\<T>(T, Transform, bool)](/engine/6000.0/script-reference/unityengine/object/instantiate.md)
* [Object.Destroy(Object, float)](/engine/6000.0/script-reference/unityengine/object/destroy.md)
* [Object.DestroyImmediate(Object, bool)](/engine/6000.0/script-reference/unityengine/object/destroyimmediate.md)
* [Object.FindObjectsByType(Type, FindObjectsSortMode)](/engine/6000.0/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytype\(type-findobjectssortmode\))
* [Object.FindObjectsByType(Type, FindObjectsInactive, FindObjectsSortMode)](/engine/6000.0/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytype\(type-findobjectsinactive-findobjectssortmode\))
* [Object.DontDestroyOnLoad(Object)](/engine/6000.0/script-reference/unityengine/object/dontdestroyonload.md)
* [Object.FindObjectsByType\<T>(FindObjectsSortMode)](/engine/6000.0/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytypet\(findobjectssortmode\))
* [Object.FindObjectsByType\<T>(FindObjectsInactive, FindObjectsSortMode)](/engine/6000.0/script-reference/unityengine/object/findobjectsbytype.md#findobjectsbytypet\(findobjectsinactive-findobjectssortmode\))
* [Object.FindFirstObjectByType\<T>()](/engine/6000.0/script-reference/unityengine/object/findfirstobjectbytype.md#findfirstobjectbytypet\(\))
* [Object.FindAnyObjectByType\<T>()](/engine/6000.0/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytypet\(\))
* [Object.FindFirstObjectByType\<T>(FindObjectsInactive)](/engine/6000.0/script-reference/unityengine/object/findfirstobjectbytype.md#findfirstobjectbytypet\(findobjectsinactive\))
* [Object.FindAnyObjectByType\<T>(FindObjectsInactive)](/engine/6000.0/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytypet\(findobjectsinactive\))
* [Object.FindFirstObjectByType(Type)](/engine/6000.0/script-reference/unityengine/object/findfirstobjectbytype.md#findfirstobjectbytype\(type\))
* [Object.FindAnyObjectByType(Type)](/engine/6000.0/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytype\(type\))
* [Object.FindFirstObjectByType(Type, FindObjectsInactive)](/engine/6000.0/script-reference/unityengine/object/findfirstobjectbytype.md#findfirstobjectbytype\(type-findobjectsinactive\))
* [Object.FindAnyObjectByType(Type, FindObjectsInactive)](/engine/6000.0/script-reference/unityengine/object/findanyobjectbytype.md#findanyobjectbytype\(type-findobjectsinactive\))
* [Object.ToString()](/engine/6000.0/script-reference/unityengine/object/tostring.md)
* [Object.name](/engine/6000.0/script-reference/unityengine/object/name.md)
* [Object.hideFlags](/engine/6000.0/script-reference/unityengine/object/hideflags.md)

### Operators

| Operator                                                                           | Description                                                             |
| ---------------------------------------------------------------------------------- | ----------------------------------------------------------------------- |
| [operator ==](/engine/6000.0/script-reference/unityengine/object/op-equality.md)   | Compares two object references to see if they refer to the same object. |
| [bool](/engine/6000.0/script-reference/unityengine/object/op-implicit.md)          | Determines whether the object exists.                                   |
| [operator !=](/engine/6000.0/script-reference/unityengine/object/op-inequality.md) | Compares if two objects refer to a different object.                    |