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Vivox Core SDK

Vivox Core SDK

Vivox
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Vivox Core SDK
  • Overview
  • Before you begin
  • Get started
  • Release notes
  • Developer Guide
    • Client SDK basics
    • Channels
    • Presence management
    • Messaging
    • Manage audio
    • Couch co-op
    • Android app development
    • iOS app development
      • Required Info.plist settings for iOS apps
      • Acoustic echo cancellation
      • Initialize the AVAudioSession on app startup
      • AVAudioSessionModeVoiceChat
      • Disable the Vivox SDK internal AEC
      • iOS known limitations
    • macOS app development
    • Windows app development
    • Real-time recording
    • Speech-to-text audio transcription
    • Text-to-speech
    • Troubleshooting
  • Reference
  • Privacy overview
  1. Vivox Core SDK documentation
  3. iOS app development

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, refer to 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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