Audio Cable: Virtual

The Ultimate Guide to Virtual Audio Cable: Reroute Your PC’s Sound Like a Pro

In the digital age, the way we manage audio on our computers has become increasingly complex. Whether you are a podcaster trying to record a Zoom call, a gamer wanting to separate Discord chat from game sound, or a musician using multiple DAWs, you have likely hit a frustrating wall: Your physical sound card only has one "line out" and one "line in."

  • Windows: Virtual Audio Cable (VAC), VB-Cable, VoiceMeeter (mixing + virtual I/O), Loopback (Rogue Amoeba for macOS).
  • macOS: Loopback, BlackHole, Aggregate Devices via Audio MIDI Setup.
  • Linux: JACK, PulseAudio virtual sinks/sources, PipeWire virtual devices.

What is Virtual Audio Cable?

At its core, Virtual Audio Cable is a Windows driver package that creates a set of virtual audio devices. Unlike your physical speakers or microphone, these devices exist purely in software. virtual audio cable

If you’ve ever tried to stream a game on Twitch, record a podcast with a remote guest, or capture audio from a specific browser tab, you’ve likely hit a digital wall. Windows and macOS aren't naturally built to send audio from one app directly into another. The Ultimate Guide to Virtual Audio Cable: Reroute

How It Works (The Technical Bit)

When you install VAC, the driver adds several new "devices" to Windows' sound control panel. What is Virtual Audio Cable

3. Two Main Versions

  • VAC (official, by Eugene Muzychenko) – Paid (~$30), stable, low-latency, highly configurable.
  • VB-Cable (by VB-Audio) – Free/donation-ware, simpler, great for beginners.

7.2. Recommended Settings for Common Scenarios

| Scenario | Format | Packet Size | Mode | |----------|--------|-------------|------| | Casual streaming (Discord + OBS) | 48 kHz, 16-bit, stereo | 10 ms | Shared | | Pro music routing (DAW) | 48/96 kHz, 24-bit | 2.66 ms | Exclusive (WASAPI) | | Speech recognition | 16 kHz, 16-bit, mono | 20 ms | Shared | | Automated testing | 48 kHz, 32-bit float | 5 ms | Exclusive | | Multi-channel surround | 192 kHz, 24-bit, 7.1 | 5 ms | Exclusive |