Compare software

Audio Source vs AudioRelay: catalog facts
Audio SourceAudioRelay
Free

Free and open source under the MIT license.

Freemium

Free to use, with a paid premium tier.

Linux, Android Windows, macOS, Android
  • Turns a phone into a wired microphone with no extra hardware
  • Works over USB through ADB
  • Works as both a phone microphone and a phone speaker for a PC
  • Wi-Fi or USB connections
  • Linux with PulseAudio only on the computer side
  • Requires ADB and USB debugging
  • Needs the app on both the computer and the phone
  • Latency depends on network quality over Wi-Fi
Downloadable app Downloadable app
Open source Closed source
License: MIT License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.