Mixbus is a software that has "analog console" features bult into a full-featured Digital Audio Workstation (DAW). Mixbus "True Analog Mixing" provides critical mixing functions in a knob-per-function interface. "True Analog Mixing" is based on Harrison's renowned 32-Series and MR-Series console designs, plus Harrison's proprietary digital mixing technology. Mixbus enables you to record, edit, and mix a musical performance in-the-box while getting a sound that harkens back to the golden age of album recordings.

Traditional DAW mixers were designed by companies with no pedigree in music mixing, and they suffer from well-known flaws. Harrison eliminated these flaws in Mixbus by completely replacing the DAW's internal mixing engine and applying proprietary True Analog processing. Harrison consoles are known for their great-sounding EQ, filters, dynamics, and bus summing on every track. Now Mixbus offers every engineer a real Harrison music console "in the box". With Mixbus's logical knob-per-function interface, the user works with the fluidity of a traditional analog recording studio while retaining the convenience of a DAW. Mixbus enables the user to record, edit, and mix a musical performance "in the box" but get a sound that harkens back to the golden age of album recordings.

Features:

• Straightforward “knob per function” mixer layout based on Harrison's renowned 32-series and MR-series music consoles.
• Precision DSP algorithms for EQ, Filter, Compression, Analog Tape Saturation, and Summing based on Harrison's world-renowned large format analog and digital mixing consoles.
• Unlimited stereo or mono input channels (based on available CPU power) featuring High-pass Filter, EQ, Compression, and 4 Mix Bus sends on every channel.
• 4 Stereo Mix Buses (can be used for groups or auxes) featuring Tone controls, Compression, Sidechaining, and Analog Tape Saturation.
• Stereo Master Bus that features Tone controls, Analog Tape Saturation, K-meter, and Limiting to help you make polished mixes.
• Plugin delay compensation to support effects such as parallel compression.
• Comprehensive "at-a-glance" metering with peak, peak hold, and compressor gain reduction visible on every track and bus.
• Extensive DAW features via the Ardour Digital Audio Workstation.
• Supports AudioUnit plugins and any CoreAudio interface.

http://www.youtube.com/watch?v=Fa_o6hmJg3Q

Changes in v2.1:

• Now with flexible educational pricing: Students can avail of a $9/month subscription with waived initial payment.
• Import royalty free sounds directly from Freesound.org
• Export final mixes to Soundcloud
• Metadata dialog

Changes in v2.07:

• It adds MIDI control of Compressor, EQ, Mixbus, and Phase toggles.
• Improvements for editing, metronome clicks, looping and keybindings

Changes in v2.06 include:

• Includes JACK 0.89 which provides support for ProTools software
• Bugfix for crash when deleting Invada LV2 plugins
• Improved layout of the plugin selector dialog.
• Added 176.4kHz sampling rate.
• Views may now be saved
• Bugfix for crash on session load caused by plugin fx sliders
• Bugfix for problem with Russian sample-rate translation

Changes in v2.05:

• Provides fixes for snapshot switching, region menu, undo, auto-backup, and other issues.
• Other bugfixes and minor enhancements

Changes in v2.0 include:

• double Mix Bus Sends - now up to 8
• Plugin Effect Control Sliders allow you to map plugin controls directly to controls on the mixer strip
• Input Trim, Makeup Gain, Sidechain, and Master Limiter controls are now available directly from the mixer window
• Improved Mixer navigation and display, including narrow mixer strip and the ability to show/hide Mix Buses as needed
• New Phase-Correlation meter on the Master Bus displays mono compatibility of the stereo mix
• Plugins, sends, inserts and the fader now appear in a single redirect box at the top of the mixer strip
• Polarity (phase) buttons for every mixer strip
• Editor Improvements, Smart Object Mode, Ripple Editing Mode, Transparent dragging
• Improved documentation
• Improved key binding
• Bugfixes

Changes in v1.4 include:

• Mixbus solos now work as expected (the master-assigns are muted)
• Graphical glitches with popup menus and "moving" mixer strips have been fixed.
• New keybindings for users of other popular DAWs