fingerprint

func AddNoise ¶

func AddNoise(signal []float64)

func Bartlett ¶

func Bartlett(signal []float64) []float64

Bartlett applies the Bartlett window function on the given signal.

func Compare ¶

func Compare(sourceFP [][]int, destFP [][]int) float64

Compare compares two 2-D slice and return the match rate a.k.a the number of matching elements over the total number of elements.

func FFT ¶

func FFT(signal []float64) []float64

FFT performs Fast Fourier Transform on the given signal.

func Fingerprint ¶

func Fingerprint(filename string, winSize, hopSize int, windowFunction string, addNoise bool) [][]int

Fingerprint takes a .wav file and output its fingerprint.

func GetHighestMatchRate ¶

func GetHighestMatchRate(sampleFilename string, sampleFingerprint [][]int, audioFilename string, audioFingerprint [][]int) float64

GetHighestMatchRate returns the highest match rate between the fingerprint of the sample and the fingerprint of the target audio.

func Hamming ¶

func Hamming(signal []float64) []float64

Hamming applies the Hamming window function on the given signal.

func Hann ¶

func Hann(signal []float64) []float64

Hann applies the Hann window function on the given signal.

func Spectrogram ¶

func Spectrogram(signal *Signal, winSize, hopSize int, windowFunction string) [][]float64

Spectrogram returns the spectrogram of the input signal. Optional window function.