|Original author(s)||Paul Davis|
|Developer(s)||David Robillard, Robin Gareus, Nick Mainsbridge, Colin Fletcher, Ben Loftis, Tim Mayberry.|
|Initial release||23 September 2005|
|Stable release||6.6 (February 21, 2021 )|
|Preview release||6.0-rc2 (May 20, 2020)|
|Written in||C++ (GTK+)|
|Operating system||FreeBSD, Linux, macOS, Microsoft Windows|
|Type||Digital audio workstation|
Ardour is a hard disk recorder and digital audio workstation application that runs on Linux, macOS, FreeBSD and Microsoft Windows. Its primary author is Paul Davis, who was also responsible for the JACK Audio Connection Kit. Ardour is intended to be a digital audio workstation software suitable for professional use.
Ardour's recording abilities are limited by only the hardware it is run on; there are no built-in limits in the software.[clarification needed] When recording on top of existing material, Ardour can do latency compensation, positioning the recorded material where it was intended to be when recording it. Monitoring options include self-monitoring, use of external hardware (a feature dependent on sound card support) or specialised product; e.g. JACK Audio Connection Kit. Self-monitoring makes it possible to apply plug-in effects to the signal while recording in real-time. Using the audio server JACK, Ardour can record both from the audio card and compatible software concurrently.
Ardour supports an arbitrary number of tracks and buses through an "anything to anywhere" routing system. All gain, panning and plug-in parameters can be automated. All sample data is mixed and maintained internally in 32-bit floating point format.
Ardour supports dragging, trimming, splitting and time-stretching recorded regions with sample-level resolution and has a possibility to layer regions. It includes a crossfade editor and beat detection. Ardour has unlimited undo/redo and a snapshot feature for storing the current state of a session to a file for future reference.
Ardour can be used as an audio mastering environment. Its integration with the JACK Audio Connection Kit makes it possible to use mastering tools such as JAMin to process the audio data. The output of Ardour's mixer can be sent 3rd party audio-processing software to be processed and/or recorded. It can also export TOC and CUE files, which allows for the creation of audio CDs.
Ardour has been tested on Linux, on the x86-64, x86, PowerPC and ARM (for at least version 3) architectures, Solaris, macOS on Intel and PowerPC, Windows on Intel architectures and FreeBSD. It takes advantage of multiprocessor and multicore SMP and real-time features of all of these operating systems.
Pre-built binaries of Ardour 6.x are available for Linux, macOS and Windows.
Ardour relies on plug-ins to enable many features, from audio effects processing to dynamic control. It supports the following plugin format and platform combinations: LV2 on Linux, FreeBSD, macOS and Windows; AudioUnits on macOS; Steinberg's VST2 on Linux, macOS and Windows; LADSPA on Linux, FreeBSD, macOS and Windows. It is theoretically possible to use plugins created for Windows in the VST2 format on Linux with the help of Wine, but the project team does not recommend it. Since version 6.5 Ardour also supports VST3 plugins on all supported platforms.
Import and export
Ardour supports exporting whole sessions or parts of sessions and importing audio clips into sessions from more than 30 different audio file formats. This can be done using Ardour's built-in audio file database manager or directly from an ordinary file browser.
Supporting companies and future
SAE Institute provided corporate support for Ardour up until February 2009. The aim of the initiative was to provide a more integrated experience on Mac OS X and the development of a version tailored towards beginner students.
Harrison Audio Consoles has been a supporter of the Ardour project since early 2005. Harrison's "Mixbus" DAW and their destructive film dubber, the Xdubber, are based on Ardour. Mixbus extends Ardour to add Harrison's own DSP and a more console-like workflow. The Xdubber serves as a customizable platform for enterprise-class digital audio workstation (DAW) users.
Waves Audio privately support Ardour development in 2009. The company also developed the Waves Track Live software  in collaboration with Ardour developers , with most of the source code changes becoming part of the Ardour codebase.
- JACK Audio Connection Kit, a real-time low latency audio server.
- Comparison of digital audio editors
- Comparison of free software for audio
- Linux audio software
- List of free and open source digital audio workstation software
- List of music software
- Hinkle-Turner, Elizabeth (September 2009). "Ardour et al., or Free and Easy Laptop Pro Audio: An Essay Perspective from a desperate working mother composer". eContact! 11.3 — Open Source for Audio Application. Canadian Electroacoustic Community.
- Nettingsmeier, Jörn (September 2009). "Ardour and Ambisonics: A FLOSS approach to the next generation of sound spatialisation". eContact! 11.3 - Jörn Nettingsmeier - Ardour and Ambisonics. Canadian Electroacoustic Community.
- Gareus, Robin (December 2017). "The Ardour DAW - Latency Compensation and Anywhere-to-Anywhere Signal Routing Systems". PhD Thesis. Université Paris 8.