Spectra

关于

Spectra 帮助通过 Apple 的 Accelerate 框架分析信号并获取其 FFT 频谱

示例

let numberOfSamples: Int = 512 // must be a power of two

//Do this once when setting up or when your number of samples change
var fft = FFT(samples: numberOfSamples)

var buffer: [Float] = [...]
fft.forward(buffer)

var spectrum: [Float] = fft.getSpectrum()