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**CAPL Functions** » [MOST](../CAPLfunctionsMOSTOverview.md) » mostGetSyncMute

# mostGetSyncMute

[Valid for](../../../Shared/FeatureAvailability.md): CANoe DE

## Function Syntax

```plaintext
long mostGetSyncMute(long channel, long device);
```

## Description

Returns the mute status of the audio input or output.

## Parameters

* **channel**: Channel of the connected interface.
* **device**:
  * 0: Line-In
  * 1: Line-Out
  * 2: S/PDIF In (VN2640 only)
  * 3: S/PDIF Out (VN2640 only)

## Return Values

* **0**: mute off
* **1**: mute on
* **\\\< 0**: See [error codes](../CAPLfunctionsMOSTErrorCodes.md)

## Example

—

[mostGetChannel](CAPLfunctionMOSTGetChannel.md) • [mostSetSyncAudio](CAPLfunctionMOSTSetSyncAudio.md) • [mostSetSyncVolume](CAPLfunctionMOSTSetSyncVolume.md) • [mostSetSyncMute](CAPLfunctionMOSTSetSyncMute.md) • [mostGetSyncVolume](CAPLfunctionMOSTGetSyncVolume.md)
