PhoneMic

PhoneMic turns a phone into the microphone your computer hears. The phone app captures your voice and streams it over your own Wi-Fi to a free receiver app on the PC or Mac, where it shows up as a standard microphone input. Zoom, Teams, Discord, OBS, QuickTime and games can select it like any other mic.

Audio is 48 kHz mono, sent in 10 ms packets over UDP on the local network, so latency stays low. Nothing is uploaded: there is no account, no cloud service and no recording. The phone and the computer talk directly to each other, and the receiver is discovered automatically over Bonjour/mDNS. A computer can also be added by IP address on networks that block discovery.

Typical uses are a laptop with a bad or broken built-in microphone, being able to move around the room while talking, and adding a second microphone for a guest without buying hardware. Mute from the phone with one tap, and streaming keeps running with the screen off.

On Windows the receiver routes audio through VB-CABLE. On macOS it installs its own virtual audio device named Phone Mic.

The phone app requires a subscription after a one-month free trial. The Windows and Mac receivers are free.