---
title: sendLevel
framework: phase
role: symbol
role_heading: Instance Property
path: phase/phasespatialpipelineentry/sendlevel
---

# sendLevel

The amount of audio signal to add to the output.

## Declaration

```swift
var sendLevel: Double { get set }
```

## Discussion

Discussion The framework clamps the value to the range between 0 and 1, where 0 silences the audio and 1 passes the audio through to the output at full volume. The default value is 1. When an app adds the entry’s spatial pipeline (see entries) to a sound event, the framework observes no further adjustments to this property. To change the send level after that, adjust the sendLevelMetaParameterDefinition.