Windows Virtual Audio Cable

When an application plays audio to a VAC output device, the audio data is written into a shared (ring buffer) in kernel memory. Any application reading from the corresponding VAC input device retrieves that same data from the buffer.

Right-click the installation executable ( VBCABLE_Setup_x64.exe ) and select . windows virtual audio cable

immediately to allow the kernel driver to initialize. Phase 2: Windows Control Panel Mapping When an application plays audio to a VAC

is a mature, high-performance, low-latency solution for internal audio routing on Windows. It excels in scenarios requiring deterministic, multi-cable, and low-level audio transport without mixing or processing. While alternatives like Voicemeeter offer more features for casual users, VAC remains the gold standard for developers, testers, and audio engineers needing precise, kernel-level audio redirection. immediately to allow the kernel driver to initialize

| Feature | Description | |---------|-------------| | | Up to 256 independent audio channels (each is a separate input/output pair). | | Sample rate conversion | Allows different applications to use different sampling rates (e.g., 44.1 kHz, 48 kHz). | | Buffer management | Configurable latency and buffer size (from 1 ms to several seconds). | | Bit depth support | 8/16/24/32-bit PCM, IEEE Float, and other formats. | | Channel mapping | Up to 8 channels per cable (stereo, 5.1, 7.1). | | Signal presence detection | APIs for apps to detect if an audio source is active. | | Cloning/multi-destination | One output can be routed to several input clients. |

Click . The sound will now duplicate back into your ears while continuing down the virtual chain. Managing Latency, Bit Depth, and Sample Rates