Our Mastering plugin makes mastering your tracks easy as 1-2-3, using our intelligent compression and limiting algorithms. Available as VST and AU plugins. A VST plugin is a software-based audio effect or a virtual instrument intended for use in a host program that supports Virtual Studio Technology. Most digital audio workstations nowadays can load VST and VST3 plugins. VST plugins are used to expand a virtual music studio, much like how hardware effects and instruments are utilized in a real studio.

With VST (Virtual Studio Technology), Steinberg established the world’s leading and most widely supported standard for plug-ins and virtual instruments in 1996. With VST3 Steinberg releases the next major revision of Steinberg’s Virtual Studio Technology to the audio industry. VST3 marks an important milestone in audio technology with a completely rewritten code base providing not only many new features but also the most stable and reliable VST platform ever. This combination of latest technology and new features is the result of Steinberg’s twelve years of development experience as the leading plug-in interface provider. VST3 has been designed to provide a technological and creative basis for many innovative and exciting new products for the audio industry, offering a new world of creative possibilities for instrument and effect plug-in users. The VST3 SDK is available as a free technology, open in use for any developer.

About the VST standard

The Virtual Studio Technology (VST) interface is nothing short of a revolution in digital audio. Developed by Steinberg and first launched in 1996, VST creates a full, professional studio environment on your PC or Mac. VST allows the integration of virtual effect processors and instruments into your digital audio environment. These can be software recreations of hardware effect units and instruments or new creative effect components in your VST system. All are integrated seamlessly into VST compatible host applications. These VST modules have the sound quality of the best hardware units, yet are far more flexible. All functions of a VST effect processor or instrument are directly controllable and automatable; either with a mouse or with an external hardware controller. VST also allows easy integration of external equipment, allowing you to put together a system tailor-made to your needs. Being an open standard, the possibilities offered by VST have steadily been growing over the past decade. New virtual effect processors and virtual instruments are constantly being developed by Steinberg and of course dozens of other companies. Leading third party VST instrument creators include renowned software companies such as Native Instruments, Arturia and Spectrasonic as well as known hardware manufacturers like Korg, Waldorf or Novation. Companies such as Waves, Sonnox, Antares and TC Works have contributed virtual effect processors.

New VST3 features

Improved performance

Managing large plug-in sets and multiple virtual instruments on typical studio computer systems can often be difficult because of CPU performance limits. VST3 helps to improve overall performance by applying processing to plug-ins only when audio signals are present on their respective inputs. Instead of always processing input signals, VST3 plug-ins can apply their processing economically and only when it is needed.

Multiple dynamic I/Os

VST3 plug-ins are no longer limited to a fixed number of inputs and outputs. Their I/O configuration can dynamically adapt to the channel configuration they’re inserted in, meaning that any VST3 plug-in can be surround-capable with true multi-channel processing. For example, all the new VST3 plug-ins in Nuendo 4 can work in stereo-mode when inserted into a stereo channel, but switch to 6 channels when inserted into a 5.1 channel. Each audio channel is processed independently. Interaction between channels depends on the type and design of the plug-in. In addition to their flexible audio bussing capabilities, VST3 plug-ins may also offer a dedicated event bus. Typically, this is a MIDI input for control/modulation but these busses are no longer restricted to MIDI standard only. Future plug-ins may replace the common MIDI interface with alternative methods of control.

Activating/deactivating busses

A typical issue with current virtual instruments is their audio output bussing system and how they’re connected to the mixer after loading. Especially virtual samplers with multiple outputs often occupy more mixer channels than need. The VST3 interface offers the possibility to deactivate unused busses after loading and even reactivate those when needed. This cleans up the mixer and further helps to reduce CPU load.

Resizable edit windows

VST3 introduces a new approach to plug-in GUIs though window resizing, allowing for extremely flexible use of valuable screen space.

Sample-accurate automation

VST3 also features vastly improved parameter automation with sample accuracy and support for ‘ramped’ automation data, allowing completely accurate and rapid parameter automation changes.

Logical parameter organization

The plug-in parameters are displayed in a tree structure. Parameters are grouped into sections which represent the structure of the plug-in. Parameters like “Cutoff” and “Resonance” could be grouped into a section called “Filter”. This makes searching for a certain parameters easier, such as on an automation track. This also allows assigning a group of parameters to a specific MIDI Channel input and audio output bus.

Optional VST3/SKI combination

As a direct result of the modular interface design of VST3, the Steinberg Kernel Interface (SKI) can be combined with VST3 plug-ins. SKI is an additional SDK that allows extremely close integration of a plug-in with a Steinberg host application, and allows functions to be carried out almost from within the application. This extends to the ability to create tracks, copy, cut, paste or process events in the Steinberg host application. SKI is provided to selected industry partners upon request.

VSTXML for remote controllers

Remote controllers for audio and MIDI software applications have become increasingly popular. With VSTXML, VST3 offers far more flexible control of VST plug-ins by remote controllers. Using the knobs and faders on the control surface, parameters can be recorded, renamed and edited in many ways. Parameters that cannot be edited can be routed for display purposes to the control surface, for example to show Gain Reduction on compressor.

UTF16 for localized parameter naming

In VST3, all strings that can be displayed to the user are in Unicode (UTF16) format. Usage of this universal character base allows the host application to display characters in localized languages.

No MIDI restriction for parameter value transfers

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VST3 has a dedicated interface for event handling that carries a much wider range of functionality than standard MIDI events would be able to provide. This opens up a big range of opportunities for musical use cases with very high potential for innovative product design. For example with VST3 some controller events (for example, pitch) can be referred to a note event (using a note unique ID). This offers the possibility to e.g. modulate only a single note which itself is part of a chord.

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Audio inputs for VST instruments

The VST3 interface expands VST instruments by adding the ability to create audio input busses. As a result, audio data can be routed to an VST3 instrument. A synthesizer which has a built-in e.g. vocoder effect is able to process audio data coming in from other sources as well.

Multiple MIDI inputs/outputs

Unlike with VST 2.x, a VST3 plug-in can have more than only one MIDI input or one MIDI output at the same time.

64-bit processing

VST3 plug-ins are generally able to process audio data in 64-bit.