Virtual Audio Cable For Android _verified_

Android does not have a direct one-to-one equivalent to the Windows VB-Audio Virtual Cable

that works as a system-level driver because of the operating system's strict security sandboxing.

However, you can achieve the same results—routing audio between apps or between your PC and phone—using specialized apps and "loopback" workarounds. 📱 Top Virtual Audio Tools for Android 1. AudioRelay (Best for PC-to-Phone Routing)

This is the closest "cable-like" experience. It allows you to use your phone as a virtual speaker virtual microphone for your computer. How it works

: It installs a virtual driver on your PC. Any sound sent to that "cable" on your PC is instantly streamed to your Android device via Wi-Fi or USB. Key Feature : Supports USB Tethering for near-zero latency, which is much faster than Bluetooth. Official Site AudioRelay 2. SoundWire virtual audio cable for android

A classic alternative to AudioRelay. It focuses on streaming your PC's "system mix" (everything you hear) to your Android phone.

: Turning your phone into a wireless headset for gaming or movies. : Simple setup and very lightweight server software. SoundWire on Google Play 3. VBAN Receptor (VB-Audio Official)

Created by the same developers as the original Virtual Audio Cable and Voicemeeter for Windows. : It acts as a receiver for VBAN streams sent over a local network. : If you already use Voicemeeter

on your PC, this app allows you to send specific "virtual bus" audio directly to your Android device. VBAN Receptor Lite 🛠 How to Route Internal Audio (App-to-App) Android does not have a direct one-to-one equivalent

Since Android apps typically cannot "hear" each other, you have to use specific methods depending on your goal: For Recording App Audio

If you want to "cable" the audio from a game or YouTube into a recorder: AudioRelay: Stream audio between your devices

Recommended simple workflows

Recording gameplay commentary (no root): use screen recorder supporting internal audio + mic.
Streaming phone audio to PC: use SoundWire or USB audio interface.
Professional multitrack capture: use USB audio interface or a PC-based mixing solution; consider root/JACK only if you accept complexity.

Quick troubleshooting

No internal audio captured: app may opt out (DRM) or recorder lacks playback-capture support.
Mic and internal audio out of sync: try reducing processing in apps, use hardware interface, or post-align tracks in an editor.
High CPU/battery use: lower sample rate, avoid real-time effects, use hardware when possible.
Latency too high: use USB audio, reduce buffer sizes if the app exposes that setting.

Method 3: USB Audio Interface (The Hardware Workaround)

Best for: Professional musicians who need multi-track routing.

If you need a real, low-latency "cable," sometimes the best virtual cable is a physical one. Use a USB-C to USB-A adapter to plug a standard USB audio interface (like a Focusrite Scarlett 2i2) into your Android phone. Recommended simple workflows

Why this is a virtual cable:

The interface has two physical inputs (mics) and two outputs (speakers).
Using apps like USB Audio Player PRO, you can route Spotify to Output 1 (your headphones) and route your guitar input to Output 2.
Then, using a physical loopback cable (1/4" TRS from Output 2 back into Input 1), you create an external virtual cable.

This is analog, not digital, but many Android audio professionals prefer it because it has zero software latency and works with any app that supports USB audio.

1. Introduction

A Virtual Audio Cable (VAC) is a software driver that simulates an audio loopback. It creates a pair of virtual devices: an output endpoint (speaker) and an input endpoint (microphone). When audio is played to the output endpoint, the driver internally routes the signal to the input endpoint, allowing any application to "hear" the audio being played by the system without using physical speakers or microphones.

While ubiquitous on Windows and macOS, this concept has historically been elusive on Android. Users attempting to stream mobile games to platforms like Twitch, record internal system audio for podcasts, or use real-time signal processing apps often face significant hurdles. This paper delineates the technical reasons for this gap and the methodologies developed to bridge it.

Root vs non-root — tradeoffs

Non-root: safer, simpler, uses official APIs (AudioPlaybackCapture), but limited by app opt-out and OS constraints.
Root: powerful (true virtual devices, multi-channel loopbacks), but risky (security, updates), and complex to configure.