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Vivox Unreal SDK

Vivox Unreal SDK

Vivox
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Vivox Unreal SDK
  • Overview
  • Get started
  • Release notes
  • Developer guide
    • Set up your project
    • Unity Authentication Service in Unreal
    • Create voice and text channels
    • Messaging
    • Audio management
    • Muting
    • In-game moderation
    • Android app development
    • iOS app development
      • Acoustic echo cancellation
      • Initialize the AVAudioSession on app startup
      • AVAudioSessionModeVoiceChat
      • AVAudioSession configuration when using WWise
      • iOS known limitations
    • Server-side recording
    • Speech-to-text audio transcription
    • Text-to-speech
    • Real-time recording
    • Transmission
    • Troubleshooting
  • Tutorials
  • Reference
  1. Vivox Unreal SDK documentation

AVAudioSessionModeVoiceChat

Learn about AVAudioSessionModeVoiceChat.
Read time 1 minute
Last updated 8 months ago
To enable platform acoustic echo cancellation (AEC), the iOS device must be in 
AVAudioSessionModeVoiceChat
. For more information, see the Apple developer documentation.
AVAudioSessionModeVoiceChat
changes EQ to optimize for voice. Because of this change, any non-voice audio that the iOS app plays might seem quieter. The Voice-Processing I/O unit also mixes the audio to ensure that the voice is the loudest part of the overall audio mix.
Note
Although it is possible to change the AVAudioSession mode to default after activating the Voice-Processing I/O unit, Apple recommends using AVAudioSessionModeVoiceChat. Using the default mode when the Voice-Processing I/O unit is active might cause unpredictable behavior, and various device types (for example, iPad and iPhone) might behave in different ways.
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