fftea library

Classes

FFT

Performs FFTs (Fast Fourier Transforms) of a particular size.

STFT

Performs STFTs (Short-time Fourier Transforms).

Extensions

ComplexArray on Float64x2List

Extension methods for Float64x2List, representing a list of complex numbers.

Window on Float64List

Extension methods for Float64List, representing a windowing function.

Functions

circularConvolution(List<double> a, List<double> b, [int length = 0]) → Float64List

Returns the circular convolution of real arrays a and b.

convolution(List<double> a, List<double> b) → Float64List

Returns the linear convolution of real arrays a and b.

resample(List<double> input, int outputLength) → Float64List

Resamples the input audio to the given outputLength.

resampleByRate(List<double> input, double inputSampleRate, double outputSampleRate) → Float64List

Resamples the input audio from inputSampleRate to outputSampleRate.

resampleByRatio(List<double> input, double ratio) → Float64List

Resamples the input audio by the given sampling ratio. If ratio > 1 the result will have more samples.