libdspl-2.0 — opensource cross-platform digital signal processing algorithm library, written in C language. Distributed under LGPL v3 license. This allows to use this library in all applications with dynamic linking.

libdspl-2.0 includes follow algorithms sets:

• Digital spectral analysis, discrete and fast Fourier transform algorithms.
• Analog and digital IIR filters design and analysis.
• Digital FIR filters design and analysis.
• Windows function collection includes 15 different parametric and nonparametric window functions.
• Digital Hilbert transform algorithms.
• Mathematical sections includes trigonometric, hyperbolic, elliptic functions of real and complex variables.
• Pseudorandom numbers generation algorithms.
• Statistic functions.
• Linear algebra BLAS and LAPACK packages are used under the hood.
• Digital resampling algorithms.

To build the DSPL-2.0 library on Windows, a special set of programs dsplib toolchain is provided. Dsplib toolchain includes GCC, Gnuplot, CodeBlocks IDE, file manager Far and also Unix utilities for Windows OS.

• Mathematical sections:

  • Basic math functions of the real and complex arguments.
  • Trigonometric and hyperbolic of functions the real and complex arguments.
  • Transcendent math functions.
  • Elliptic Jacoby functions of the real and complex arguments.
  • Pseudo-random numbers generation.
  • Math statistic functions.
  • Linear algebra and matrix operations.

• Digital spectral analysis:

  • Discrete Fourier transform and fast Fourier transform algorithms.
  • Windows function for filter design and spectrum analysis.
  • Hilbert transform algorithms.

• Analog and digital filters design and analysis:

  • Convolution and digital filtration.
  • IIR filters design.
  • FIR filter design.
  • Analog and digital filter analysis.

• Other algorithms:

  • Digital samplerate conversion (resampling).
  • Input and output data from external files.
  • Plotting data by Gnuplot interface.

• Appendix

  • libdspl-2.0 data types.
  • Error codes.