Use Your Phone as an OBS Microphone for Streaming
Viewers forgive blurry video but never bad audio. If your stream budget went into a GPU instead of a microphone, your phone can fill the gap – and with the right settings the result is indistinguishable from a budget USB mic.
Adding the phone mic to OBS
Install the WO Mic client and connect your phone. In OBS, add an Audio Input Capture source and select the WO Mic virtual device. Set the sample rate to 48 kHz to match OBS's default and avoid resampling artifacts.
- Audio Input Capture – WO Mic Virtual Microphone
- Sample rate 48 kHz
- Add a Noise Suppression filter (RNNoise)
- Add a Compressor filter for consistent levels
Filter chain that sounds professional
Start with noise suppression to kill fan and keyboard noise, follow with a noise gate set just above room tone, then a compressor with a 3:1 ratio and a limiter at -1 dB. This chain is what makes phone audio sound like a produced stream.
Latency and sync
Wi-Fi audio arrives 50-150 ms late. OBS lets you offset the audio source under Advanced Audio Properties – set a sync offset of about 100 ms and fine-tune by clapping on camera. USB mode reduces latency significantly if lip-sync matters.
Reliability for long streams
Use USB mode for streams longer than an hour: the phone stays charged and the connection does not compete with game traffic for Wi-Fi bandwidth. Keep the phone screen on and disable battery optimization to prevent the app from being suspended.
Frequently Asked Questions
Is phone audio good enough for Twitch?
Yes. With noise suppression and a compressor, phone audio is comparable to a $40-60 USB microphone.
Can I use two phones as mics?
Run two client instances or use one phone per PC. For a single streamer, one phone is enough.
Learn more about the app at womic.org.