SignalProc

class SignalProc(fft: FFT = KotlinFFT())

Constructors

fun SignalProc(fft: FFT = KotlinFFT())

fun deframesig( frames: Array<FloatArray>, sigLen: Int, frameLen: Int, frameStep: Int, winFunc: (Int) -> IntArray = { Array(it){ 1 }.toIntArray() }): FloatArray

Does overlap-add procedure to undo the action of framesig.

fun framesig( signal: FloatArray, frameLen: Int, frameStep: Int, winFunc: FloatArray? = null, strideTrick: Boolean = true): Array<FloatArray>

Frame a signal into overlapping frames.

fun logpowspec( frames: Array<FloatArray>, nfft: Int, norm: Boolean = true): Array<FloatArray>

Compute the log power spectrum of each frame in frames. If frames is an NxD matrix, output will be Nx(NFFT/2+1).

Compute the magnitude spectrum of each frame in frames. If frames is an NxD matrix, output will be Nx(NFFT/2+1).

Compute the power spectrum of each frame in frames. If frames is an NxD matrix, output will be Nx(NFFT/2+1).

Perform preemphasis on the input signal.