DSPFilters

CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8)
+project(1mCore)
+
+option(BUILD_PXCORE "BUILD_WITH_DSPFILTERS" ON)
+option(BUILD_PXSCENE "BUILD_1MCORE" ON)
+
+if (BUILD_1MCORE)
+    message("Building 1mCore")
+    add_subdirectory(src/)
+endif (BUILD_1MCORE)

external/DSPFilters/README.md

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+## A Collection of Useful C++ Classes for Digital Signal Processing
+
+> "Techniques for digital signal processing are well guarded and held
+> close to the chest, as they have valuable applications for multimedia
+> content. The black art of Infinite Impulse Response ("IIR") filtering
+> has remained veiled in secrecy with little publicly available source
+> code...until now."
+
+<a href="https://github.com/downloads/vinniefalco/DSPFilters/DSPFiltersComplete.zip">
+<img src="https://github.com/vinniefalco/vinniefalco.github.com/raw/master/images/DownloadNow.png">
+</a>
+
+### What is this?
+
+Building on the work of cherished luminaries such as Sophocles Orfanidis,
+Andreas Antoniou, Martin Holters, and Udo Zolzer, this library harnesses
+the power of C++ templates to solve a useful problem in Digital Signal
+Processing: the realization of multichannel IIR filters of arbitrary order
+and prescribed specifications with various properties such as Butterworth,
+Chebyshev, Elliptic, and Optimum-L (Legendre) responses. The library is
+provided under the MIT license and is therefore fully compatible with
+proprietary usage.
+
+Classes are designed as independent re-usable building blocks. Use some or
+all of the provided features, or extend the functionality by writing your
+own objects that plug into the robust framework. Only the code that you
+need will get linked into your application. Here's a list of features:
+
+- Exclusive focus on IIR filters instead of boring FIR filters
+- Complete implementation of all "RBJ Biquad" Cookbook filter formulas
+- Butterworth, Chebyshev, Elliptic, Bessel, Legendre designs
+- Low Pass, High Pass, Band Pass, Band Stop transformations
+- Low, High, and Band Shelf filter implementations for most types
+- Smooth interpolation of filter settings, pole/zeros, and biquad
+  coefficients to achieve seamless parameter changes
+- Representation of digital filters using poles and zeros
+- Realization using Direct Form I, Direct Form II, or user provided class
+- Fully factored to minimize template instantiations
+- "Design" layer provides runtime introspection into a filter
+- Utility template functions for manipulating buffers of sample data
+- No calls to malloc or new, great for embedded systems
+- No external dependencies, just the standard C++ library!
+
+Using these filters is easy:
+
+    // Create a Chebyshev type I Band Stop filter of order 3
+    // with state for processing 2 channels of audio.
+    Dsp::SimpleFilter <Dsp::ChebyshevI::BandStop <3>, 2> f;
+    f.setup (3,    // order
+             44100,// sample rate
+             4000, // center frequency
+             880,  // band width
+             1);   // ripple dB
+    f.process (numSamples, arrayOfChannels);
+
+An accompanying demonstration program that works on most popular
+platforms by using the separately licensed Juce application framework
+(included), exercises all the functionality of the library, including
+these features:
+
+- Dynamic interface creates itself using filter introspection capabilities
+- Audio playback with real time application of a selected filter
+- Live time stretching and amplitude modulation without clicks or popping
+- Charts to show magnitude, phase response and pole/zero placement
+- Thread safety "best practices" for audio applications 
+
+This is the provided DSP Filters Demo application, which demonstrates the
+features of the library and uses the Juce application framework to run on
+all popular platforms:
+
+<img src="https://github.com/vinniefalco/DSPFilters/raw/gh-pages/images/DSPFiltersScreenshot.png">
+
+If you've been searching in futility on the Internet for some source code
+for implementing high order filters, then look no further because this is
+it! Whether you are a student of C++ or digital signal processing, a writer
+of audio plugins, or even a VST synthesizer coder, "A Collection of Useful
+C++ Classes for Digital Signal Processing" might have something for you!
+
+### DSP Filters on the Web
+
+DSP Filters Official Discussion Forum<br>
+http://www.kvraudio.com/forum/viewtopic.php?t=249926
+
+DSP and Audio Plugin Discussion Forum<br>
+http://www.kvraudio.com/forum/viewforum.php?f=33
+
+Juce Official Discussion Forum<br>
+http://www.rawmaterialsoftware.com/index.php
+
+Juce Official Site<br>
+http://www.rawmaterialsoftware.com
+
+### Terms and Conditions
+DSP Filters Library and DSP Demo Application Copyright (c) 2009 by
+[Vinnie Falco](http://github.com/vinniefalco)<br>
+Source code is provided under the
+[MIT License](http://www.opensource.org/licenses/mit-license.php)<br>
+The [Juce Library](http://www.rawmaterialsoftware.com) is licensed
+separately, from [Raw Material Software](http://rawmaterialsoftware.com).

external/DSPFilters/shared/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.0)
+
+project (DSPFilters_Solution)
+
+set (CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_BUILD_TYPE Release)
+
+if((${CMAKE_CXX_COMPILER_ID} STREQUAL MSVC))
+  set(MYFLAGS "/O2 /WX- /MT")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MYFLAGS}")
+  set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} ${MYFLAGS}")
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${MYFLAGS}")
+  set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${MYFLAGS}")
+  include(CheckSymbolExists)
+  check_symbol_exists(snprintf "stdio.h" HAVE_SNPRINTF)
+  if(NOT HAVE_SNPRINTF)
+  add_definitions(-Dsnprintf=_snprintf)
+  endif()
+endif()
+
+add_subdirectory(DSPFilters)
+#add_subdirectory(JuceAmalgam)
+#add_subdirectory(DSPFiltersDemo)