MinDSP

Header-only DSP library

Features

• FIR Filtering
• Ring buffer / Delay line
  • Fractional delay
• Conversion between floating point and decibels
• Biquadratic filter
• Higher-order IIR filter
• FIR filter design
• Biquad filter design
  • Low pass filter
  • High pass filter
  • Peak filter
  • Low shelf filter
  • High shelf filter
  • Notch filter
  • Band pass filter
• Window functions
  • Hann
  • Hamming
  • Blackman-Harris
• FFT
  • Cooley-Tukey (radix-2)
    • std::complex<float>-based FFT automatically resizes non-power of 2 size inputs

Examples

Biquad

Low pass filtering

    using std::vector;
    using namespace mindsp::filter;
    vector<float> wave (44100); // any populated array with a wave in floating-point form
    biquad_filter bq (low_pass_filter(500, 44100, 1));  // low pass at 500hz at a sample rate of 44.1khz with Q factor of 1
    bq.apply(wave.data(),wave.data(),wave.size());