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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
      • Bluetooth profile management
      • Android SDK permission requirements
      • Android library requirements
      • Initialize Vivox Android services
      • Android speakerphone audio: Mono or stereo
      • Update the ProGuard rule file
      • Smart Platform Audio Management
      • Acoustic echo cancellation
      • Disable the Vivox SDK internal AEC
      • Hardware echo cancellation
      • Absolute paths for native libraries
      • Reduce Opus CPU load on low-powered Android devices
    • iOS app development
    • 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. Android app development

Hardware echo cancellation

Information on hardware echo cancellation on Android devices.
Read time 1 minute
Last updated 8 months ago
Most modern Android devices have a hardware-provided acoustic echo cancellation (AEC) capability. If the target device provides hardware echo cancellation (HEC), then it can filter out all audio that is produced by the device from the capture device stream.
Note
We recommend that you test the HEC configuration on all target Android devices.
The resulting quality and behavior from using HEC can differ across various Android devices. On some devices, stereo playback is downgraded to mono, including Vivox positional channels. Using HEC could also reduce CPU and battery consumption.
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