# decayRatio

> Echo decay per delay. 0 to 1. 1.0 = No decay, 0.0 = total decay (i.e. simple 1 line delay). Default = 0.5.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.AudioModule

```csharp
public float decayRatio { get; set; }
```

### Examples

```csharp
using UnityEngine;

[RequireComponent(typeof(AudioSource))]
[RequireComponent(typeof(AudioEchoFilter))]
public class Example : MonoBehaviour
{
    // Set the decayRatio on the chorus filter to total decay

    void Start()
    {
        GetComponent<AudioEchoFilter>().decayRatio = 0.0f;
    }
}
```