• Travis:
• AppVeyor:

A rewrite of the digital filter components of SPUC with more testing, better code design and c++11 features.

• Uses std::complex instead of custom complex class
• Will focus of floating point instead of fixed-point modules
• Includes Chebyshev2 filter
• Bug fixes for odd order IIR filters
• Adding support for Bandpass and Bandstop designs for both IIR and FIR filters

Most of spuc was written many years ago before C++ compilers had good template support and was primarily written for fixed-point hardware design and simulation.

Currently there is some code for IIR Filter Design & Implementation

• Butterworth
• Chebyshev
• Inverse Chebyshev
• Elliptic
• Maximally flat FIR
• Remez Equiripple
• Raised Cosine FIR/Root Raised Cosine FIR
• Gaussian FIR
• Sinc FIR
• Cascaded Integrate Comb filters (or CIC filters)
• Notch filter
• Cut/Boost Filter
• Halfband/Subband IIR filters consisting of allpass sections
• Irrational resampling with Farrow & Lagrange based filters

To install via Homebrew

• brew tap audiofilter/spuce
• brew install spuce (or brew install -HEAD spuce for latest sources)

To install for Linux

The deb package is provided by the MyriadRF SDR Drivers PPA. The PPAs support the following Ubuntu releases:

• Trusty (14.04 LTS)
• Vivid (15.04)
• Wily (15.10)

Do the following to install on your Ubuntu system

• sudo add-apt-repository -y ppa:myriadrf/drivers
• sudo apt-get update
• sudo apt-get install libspuce-dev

For testing, python + matplotlib is used.

• Most of the test involve using python's matplotlib to show a frequency response of the filter, sometimes impulse responses are used

There are 4 QT apps for illustration purposes fir_plot, iir_plot, window_plot and other_plot

QT5 needed for test application

#Please see wiki pages for a Quick Guide to Digital Filters in Spuce