libDSP Overview

libDSP is C++ class library of common digital signal processing functions. There is also a wrapper for the C language.

Current (vector) functions:

• Float to integer conversion with rounding
• Addition (real, complex)
• Subtraction (real, complex)
• Multiply (real, complex)
• Division (real, complex)
• 1/x (real)
• Absolute value (real)
• Square root (real)
• Zero (real, complex)
• Set (real, complex)
• Clip (real)
• Copy (real, complex)
• Convolution (real)
• Correlation (real)
• Autocorrelation (real)
• Dot product (real)
• Min and Max (real)
• Mean (real)
• Median (real)
• Negate (real)
• Normalization (real)
• Product (real)
• Reverse
• Scale to -1..1 and 0..1 (real)
• Sort (real)
• Standard deviation (real)
• Sum (real)
• Square (real)
• Integer-Float and Float-Integer conversion: 8, 12, 16, 24, 32 bits (real)
• Cartesian-Polar and Polar-Cartesian conversion
• Cross correlation (real)
• Energy (real)
• Magnitude
• Power
• Phase
• Decimation
• Interpolation
• RMS (real)
• Variance (real)
• Peak level in dB (real)
• Window functions: Bartlett, Blackman, Blackman-Harris, Cosine tapered, Exponential, Flat-top, Generic cosine, Hamming, Hanning, Kaiser, Kaiser-Bessel, Tukey, Dolph-Chebyshev
• Mix (real)
• Spatialize (real)
• Interleave/Deinterleave (real)
• Rebuffer
• Deg-Rad and Rad-Deg conversion
• FIR filter
• IIR filter
• DFT, DCT, DST
• FFT filter
• Multirate decimation/interpolation with FFT, FIR and IIR filters
• Frequency band flipping
• Hankel