---
title: Audio Route Type Key
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/audio-route-type-key
---

# Audio Route Type Key

The one key for an audio route input or output dictionary.

## Overview

Overview This key is used with the dictionaries associated with the kAudioSession_AudioRouteKey_Inputs and kAudioSession_AudioRouteKey_Outputs arrays.

## Topics

### Constants

- [kAudioSession_AudioRouteKey_Type](audiotoolbox/kaudiosession_audioroutekey_type.md)

## See Also

### Audio Routes

- [Audio Route Change Reasons](audiotoolbox/1618380-audio-route-change-reasons.md)
- [Audio Route Description Dictionary Keys](audiotoolbox/audio-route-description-dictionary-keys.md)
- [Audio Input Routes](audiotoolbox/audio-input-routes.md)
- [Audio Output Routes](audiotoolbox/audio-output-routes.md)
- [Audio Route Change Dictionary Keys](audiotoolbox/audio-route-change-dictionary-keys.md)
- [Alternative Audio Route Change Reason Dictionary Key](audiotoolbox/alternative-audio-route-change-reason-dictionary-key.md)