What's new in this release?

Stereo conversion New in 1.0

You can now convert left/right to mid/side and vice versa in one pass. Both split and interleaved format are supported.

const univector<double, 12> left  = sequence(1, 2, 3, 2);
const univector<double, 12> right = sequence(3, 2, 1, 2);
univector<double, 12> mid;
univector<double, 12> side;
pack(mid, side) = mixdown_stereo(left, right, matrix_sum_diff());
// mid  = {4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4}
// side = {-2, 0, 2, 0, -2, 0, 2, 0, -2, 0, 2, 0}

Delay line New in 1.0

const univector<double, 12> vv = delay(sequence(1, 2, 3, 4), csize<3>);
// vv = {0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 1}

DC removal filter New in 1.0

Removing DC bias is as easy as calling one function.

const univector<double, 4410> vv = dcremove(sequence(1, 2));
// vv = {..., -0.5, 0.5}

Oscillators

Oscillators in KFR framework is both accurate and fast, so you can use more oscillators or use higher sample rate to achieve even better quality.

In addition, incremental oscillators is also available.

const univector<double, 256> o1 = sine(linspace(0, 32, 256));
const univector<double, 256> o2 = square(linspace(0, 32, 256));
const univector<double, 256> o3 = sawtooth(linspace(0, 32, 256));
const univector<double, 256> o4 = triangle(linspace(0, 32, 256));

FIR and IIR filtering and filter design

KFR framework contains fast implementations of both Finite and Infinite Impulse Response filters, FIR filter design using window method and set of functions to easily setup biquad filters.