3. Acustica Audio
4. Technology
Acustica Audio is a leading company specializing in
analog hardware virtualization.
Since the birth of Nebula in the summer of 2005, there
has been an active collaboration between forward
thinking developers, beta testers, audio engineers
and equipment samplers from around the world.
The research and development has progressed
through many stages and employs many innovative
processes and technologies as yet unheard of in other
products or devices.
Our technology provides seamless real-time emu-
lations of pre-ampliers, equalizers, compressors,
reverbs, multi-eects, stomp-boxes, cabinets, mi-
crophones and tape emulations, on Intel based ma-
chines, both for Windows and OSX. The Acustica Ac-
qua Engine is a combination of multiple advanced
technical processes that are unique to Acustica Audio.
Eects devices can be successfully sampled without
further editing or adjustment, and then immediate-
ly processed and reproduced via the same engine,
where the sampled data is stored and available for
recalling, loading, saving, and advanced editing when
desired. The quality of reproduction of sampled sourc-
es is nearly indistinguishable from the originals. The
following techniques are merged into a single mod-
el. Nonlinear convolution: The Volterra theorem is
applied as a complete re-thinking, replacement, and
generalized substitution of the convolution algorithm
that is commonly used in audio applications. Accurate
sampling, processing, and reproduction of up to 9 har-
monics is possible with our proprietary technology.
Nonlinear convolution, dynamic Volterra series, and
time-varying models are just some of the state-of-
the-art features that the Core Acqua Engine oers.
The Core Acqua Engine comes complete with all of its
internal tools, and also includes the N.A.T. sampling
system, a stand-alone application shipped with most
of Acustica Audio’s products using dierent congu-
rations.
The company’s goal is to provide the most authen-
tic reproduction of sampled vintage gear and other
high-end hardware devices, using the revolutionary
technology Vectorial Volterra Kernels Technology
(V.V.K.T.) without the negative artifacts created by the
current convolution technology.
After many years of fruitful labor, this creative for-
ward thinking group has evolved into a team of ex-
perts in knowing what it takes to serve the “best of
both worlds” (digital & analog).
Acustica… Audio Renaissance
Support is provided directly from the R&D Team that
is continuously developing the engine. Workshops
and project-specic learning sessions can be organ-
ized for your team. The Core Acqua Engine is available
with a diverse stand-alone library, ready for inclusion
in 3rd party products.
Vectorial Volterra Kernels Technology (V.V.K.T.): Vol-
terra kernels are stored in tree data structures (man-
aging up to 100,000 elements in real-time using a CPU
Pentium IV 3 GHz). The Acqua Engine is capable of im-
plementing a list of modules commonly used in audio
synthesizers (LFO, envelope followers, dynamic mod-
ules, FUNS). Multiple combinations of these process-
es may be applied to control sources and destinations.
Time Varying Models (T.M.V.): A collection of kernels
collect data using an advanced sampling technique,
creating a multi-dimensional snapshot of a nonlinear/
time-varying system.
Multiple recordings are interpolated in order to mim-
ic the time evolution and response to external vari-
ables such as user parameters and input/output as-
sessments (e.g. time-varying cyclic eect processors,
stomp-boxes, digital multi-eect units).
More info about our technology at the following link:
http://www.acustica-audio.com/pages/engine
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