VSL Vienna MIR Pro24

A network-capable mixing solution based on Multi Impulse Response convolution

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Vienna MIR Pro 24 is a special version of Vienna MIR PRO with a maximum of 24 instruments and ensembles that can be placed on its virtual stages. Apart from this limitation, Vienna MIR PRO 24 includes the full set of features and options of Vienna MIR PRO!

Vienna MIR Pro 24 is a network-capable mixing solution for Mac and PC, based on Multi Impulse Response convolution. Its direct connection with Vienna Ensemble PRO 5 allows for a seamless integration with any audio production environment.

Vienna MIR Pro 24 merges all parts of the creative process – composition, orchestration and mixing – into a single intuitive workflow. The software offers a holistic approach to the spatial modeling of virtual orchestras, allowing the user to interact with the players more like a conductor than an engineer.

Its innovative multi-parameter Control Icon replaces conventional faders and pan pots and offers concise control for positioning each instrument on the virtual stage, changing its volume and stereo width, and even rotating it within a fluid three-dimensional environment.

Vienna MIR Pro 24 combines specific directional frequency profiles with reflectional information from every instrument, assembling all of the acoustic interactions into an accurate and satisfying recreation of musicians playing their instruments in place and in space. Vienna MIR Pro 24 is much more than just “a multi-sample” of a hall – and this is where it far surpasses any other convolution reverb available on the market. Vienna MIR PRO 24 is multi-source, multi-directional, multi-positional, and multi-format.


  • Mixing & Reverberation host software based on Multi Impulse Response Convolution.
  • Up to 5,000 individually recorded impulse responses for each room, depending on the size of the stage and the number of microphone positions.
  • Hosting Vienna Instruments and 3rd party 64-bit VSTi plug-ins.
  • Graphical user interface depicting 3D renderings of the selected room (venue maps) with scroll wheel zooming.
  • Pre-listening function before selecting a room.
  • Microphone Position Offset allowing for movement of virtual microphones in the room.
  • Up to 40 sectors per stage for instrument placement, with interpolation between sectors for seamless transitions.
  • Highly specialized impulses of line arrays in 60° steps in six horizontal directions as well as upwards and downwards.
  • Reverb length can be changed individually for each microphone position.
  • GUI options such as Instrument Grouping, Hide Icon, Instrument Focus.
  • Intuitive multi-parameter MIR Control Icon with direct access to the connected audio source and visual feedback.
  • Multiple wet signal busses allow for individual RoomEQ settings for different signal sources.
  • Click-free auto-guessing of Instrument Profiles for Vienna Instruments (if used within Vienna Ensemble PRO – not available for plug-in version).
  • Character Presets (such as ‘Air’, ‘Silk’, ‘Bite’, ‘Distant’, ‘Warm’) for quick timbral changes, available for most Vienna Instruments.
  • Room EQ and Master EQ.
  • Adjustable Room Tone (natural noise floor).
  • Four-channel Ambisonics recordings for output in various stereo and surround formats (up to 8 output channels).
  • Works with any commonly used sampling frequency, up to 192 kHz.
  • Full latency compensation.
  • MIRacle plug-in – Direct access to a tailor-made algorithmic global reverb for “sweetening”.
  • Over 900 MIRx pre-configured placements and EQ settings for your instruments, precisely adjusted and perfectly seated in a concert hall or scoring stage.
  • Dedicated “MIRx Mode” brings both the ease of use and sound settings of MIRx to Vienna MIR PRO, while still allowing for individual adjustments of all parameters.
  • Includes all available MIRx Venues: Vienna Konzerthaus Grosser Saal, Konzerthaus Mozartsaal, as well as Teldex Scoring Stage Berlin (corresponding Vienna MIR RoomPack licenses required, sold separately).
  • Tailor-made output formats and RoomEQ settings for all three Venues in MIRx Mode.
  • Over 900 (!) manually built and optimized presets for Vienna Instruments, plus dozens of “General Purpose” presets for other signal sources.
  • Tailor-made Character Presets for all Vienna Instruments, individually adapted for the selected position and chosen Venue.
  • Easy conversion of existing projects to MIRx settings – either globally or partially.
  • AU/VST/AAX Native/RTAS plug-in for direct integration with most modern DAWs.
  • Optional one-click integration in Vienna Ensemble / Vienna Ensemble PRO.

In combination with Vienna Ensemble PRO:

  • LAN capability.
  • Direct and/or stem outputs.
  • 3rd Party VSTi/AU hosting.
  • Audio inputs.
  • AUX sends for individual instruments and input signals.
  • Automation of user-defined parameters.
  • MIDI remote control of user-defined parameters.
  • Learn All/Optimize All for Vienna Instruments.
  • Master Tune for Vienna Instruments.



Capturing the Magic of a Room

Every room has its own voice, with its own characteristics, its imperfections – its magic. Imagine the sound of a Bösendorfer Imperial Grand. Do you think it would be sufficient to record a single Middle C to make for a convincing virtual instrument? No, you have to go for individual samples from as many keys as possible, captured in as many velocities as the human ear is able to distinguish. The same is true for sampling a room. What the industry has had up to now are single samples from an acoustic entity, whereas Vienna MIR PRO / MIR PRO 24 is based on multi-samples with up to 5,000 individual impulse responses (IRs) per room.

Let’s look at what happens when you place a sound source, e.g., a solo horn, on Vienna MIR PRO’s virtual stage of a given concert hall. First of all, the position on stage triggers the selection of one or more sets of 8 impulses (6 for horizontal directions, 2 for upward and downward directions). Equally important, the directivity characteristics of each instrument are applied before the convolution of impulses, making the result dependent on the frequency distribution and the volume an instrument is emitting in various directions. The software engine calculates all of this in real-time, and what you get is what you hear – a solo horn that sounds exactly as if it were playing on that very spot on stage. But you are not limited to those spots that were used for impulse recording in the first place. The Ambisonics format allows for seamless interpolation of each and every point within the available areas of the room.

MIR Control Icon

New approaches to virtual orchestral music production require novel ways of handling them. Creating music is not about tweaking thousands of parameters individually – it’s about intuitive interaction with your instrument, or with the players you’ve written music for. The graphical representation of an instrument or ensemble allows you to shape your music from the conductor’s point-of-view.

The Vienna MIR Control Icon gives you an at-a-glance overview while allowing you to control almost any sonic aspect of a given instrument quickly and intuitively. Parameters such as volume, stereo width, direction or dry/wet signal ratio can be accessed at the touch of a single mouse click.

Please click on the link below to view the download and install guide for this product.


Customer Reviews

Press Quotes

“VSL’s software has always been top-class, and MIR PRO 24 is no exception. Although much is happening beneath, on the surface MIR PRO 24 is self-explanatory and easy to work with. […] once you get the hang of it, using the software as you would a real-world analogue mixing console at a live venue soon becomes addictive." - MusicTech Magazine

Tech Specs

Product Type:

Software Tools

Product Specs:

  • Requires ViennaKey (Vienna Symphonic Library USB protection device) or other USB eLicenser (e.g., from Steinberg or Arturia)

System Requirements for smaller projects

  • PC Intel i7-Quad CPU or better, with Windows 7/8/10 (latest update) 64-bit
  • Mac Intel i7-Quad CPU or better, OS X 10.8 or higher
  • 12 GB RAM

System Requirements for larger projects

  • PC Dual Intel Quad Core XEON 5520 or better, with Windows 7/8/10 (latest update) 64-bit
  • Mac Pro 8-Core Xeon 5520 “Gainstown” or better, with OS X 10.8 or higher
  • 24 GB RAM

Further requirements

  • DirectX 10-capable video card with support for OpenGL 2.1 (WIN 7)
  • AU/VST/AAX Native/RTAS compatible host; also works stand-alone in combination with Vienna Ensemble Pro
  • eLicenser Control Center software (get the latest version from www.eLicenser.net)
  • Vienna MIR RoomPack with dedicated impulse responses (sold separately)