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Otic vs Audio Source: catalog facts
Otic	Audio Source
Free Free and open source under the MIT license.	Free Free and open source under the MIT license.
Android	Linux, Android
Streams microphone audio over a local network Uses an Android foreground service	Turns a phone into a wired microphone with no extra hardware Works over USB through ADB
Requires a separate receiver to use the audio stream	Linux with PulseAudio only on the computer side Requires ADB and USB debugging
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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