This is the analog, foolproof method. You use a USB-C to 3.5mm adapter and a .
Apps like or AudioRelay offer a pseudo-virtual cable. They create a local network server on your device. One app sends audio to 127.0.0.1 (localhost), and another app receives it. virtual audio cable for android
In the desktop computing ecosystem, "Virtual Audio Cables" (VAC) are a staple utility, allowing users to route audio output directly to another application's input (e.g., routing YouTube audio into OBS or Zoom). However, on the Android operating system, achieving this functionality is significantly more complex due to architectural limitations, security models, and hardware abstraction layers. This paper explores the technical landscape of virtual audio routing on Android, analyzes the current solutions available—including root-level drivers, the Android 10 AudioPlaybackCapture API, and hardware workarounds—and discusses the future of low-latency audio interconnection on mobile devices. This is the analog, foolproof method
The interface receives audio from your Android phone over USB. They create a local network server on your device
On a computer, a tool like Virtual Audio Cable (VAC) can pipe the output of your media player directly into a voice chat app as a custom mic input, or into a DAW for live audio analysis.