<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "tvOS: -",
    "visionOS: -",
    "watchOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "AVFAudio",
  "identifier" : "/documentation/AVFAudio/AVAudioSession/SilenceSecondaryAudioHintType",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "AVFAudio"
    ],
    "preciseIdentifier" : "c:@E@AVAudioSessionSilenceSecondaryAudioHintType"
  },
  "title" : "AVAudioSession.SilenceSecondaryAudioHintType"
}
-->

# AVAudioSession.SilenceSecondaryAudioHintType

Constants that indicate whether optional secondary audio muting should begin or end.

```
enum SilenceSecondaryAudioHintType
```

## Topics

### Constants

[`AVAudioSessionSilenceSecondaryAudioHintTypeBegin`](/documentation/AVFAudio/AVAudioSession/SilenceSecondaryAudioHintType/begin)

A value that indicates that another application’s primary audio has started.

[`AVAudioSessionSilenceSecondaryAudioHintTypeEnd`](/documentation/AVFAudio/AVAudioSession/SilenceSecondaryAudioHintType/end)

A value that indicates that another application’s primary audio has stopped.

## Relationships

### Conforms To

[`Sendable`](/documentation/Swift/Sendable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Equatable`](/documentation/Swift/Equatable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Hashable`](/documentation/Swift/Hashable)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)