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stk

STK, short for Synthesis ToolKit, is a free, open-source C++ library for real-time audio synthesis and signal processing. It originated at the Center for Computer Research in Music and the Arts (CCRMA) at Stanford University and was created to provide a portable, approachable framework for building synthesizers, effects, and other DSP tools. The library is designed with a simple, object-oriented API that lets developers connect processing blocks such as oscillators, envelopes, filters, delays, and reverberators into signal chains. It also includes documentation, tutorials, and example code to support learning and experimentation in digital sound synthesis.

The core of STK is a collection of building blocks and algorithms for audio processing. While it

STK runs on major platforms including Windows, macOS, and Linux, and is distributed under an open-source license.

In summary, STK provides a versatile, open-source foundation for building and experimenting with real-time audio synthesis

focuses
on
synthesis,
it
also
covers
related
techniques
such
as
sampling
and
physical
modeling,
enabling
users
to
prototype
a
wide
range
of
instruments
and
effects.
The
design
emphasizes
portability
and
ease
of
use,
making
it
suitable
for
education,
research,
and
rapid
prototyping
of
musical
applications.
It
is
widely
used
in
academic
settings
to
teach
digital
signal
processing
and
music
technology,
as
well
as
by
hobbyists
and
researchers
who
seek
a
lightweight,
extensible
framework
for
exploring
synthesis
concepts.
and
DSP
techniques.