Harrison Mixbus is a digital audio workstation (DAW) released in 2009, compatible with Microsoft Windows, macOS X, and Linux.

[1] It is built on the open-source DAW "Ardour" but includes additional features developed by Harrison Audio, such as analog-modeled EQ, compression, summing on channel strips, and a master bus with limiter and loudness monitoring tools.

Mixbus has the features of Ardour, with additional functionality from proprietary DSP,[1] replicating the workflow, signal path, and sound of a Harrison console.

Each channel strip in Mixbus features analog modeled 3 bands EQ (including a high pass filter), compression (with 3 compressor types), panning, and summing.

In earlier versions, it also depended on the JACK audio server as its backend.