VB-CABLE Virtual Audio Device (A+B)

VBCABLE A and B refer to virtual audio cables provided by VB-CABLE Virtual Audio Device, a free (or paid, for advanced versions) Windows driver that allows you to route audio between applications internally—without physical cables or external hardware. 

Image by: https://vb-audio.com/Cable/VBAudioCable.jpg

Key Details:

• VB-CABLE A and B are typically found in the paid version VB-CABLE+, which includes two independent virtual cables (CABLE A and CABLE B), whereas the free version (VB-Audio Cable) provides only one (CABLE Input / Output).
• Each “cable” functions as:
• A virtual output device (e.g., CABLE-A Output, CABLE-B Output)
• A corresponding virtual input device (e.g., CABLE-A Input, CABLE-B Input)

Common Use Cases:

• Send audio from Application 1 → CABLE-A Output, then capture it in Application 2 via CABLE-A Input.
• Use CABLE-A for voice chat (e.g., Discord) and CABLE-B for music/streaming (e.g., OBS), enabling independent routing and processing (e.g., noise suppression, volume control per stream).
• Combine with apps like Voicemeeter or OBS Studio for advanced audio mixing and routing.

Setup Tips:

1. Install VB-CABLE+ (from vb-audio.com).
2. In Windows Sound Settings:

• Set app playback devices to CABLE-A or CABLE-B as needed.
• Set recording/microphone inputs to CABLE-A Input or CABLE-B Input. 

      3. Ensure sample rates match across devices to avoid glitches (e.g., 44.1 kHz or 48 kHz).

⚠️ Note: Conflicts may occur with other audio drivers (e.g., ASIO4ALL, Realtek enhancements). Disable audio enhancements and set consistent sample rates.

Download here:

VB-CABLE Virtual Audio Device (password 1234567890)