Kotlin Speech Features/org.merlyn.kotlinspeechfeatures/SpeechFeatures/lifter

lifter

fun lifter(cepstra: FloatArray, l: Int = 22): FloatArray
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Apply a cepstral lifter the the matrix of cepstra. This has the effect of increasing the magnitude of the high frequency DCT coeffs.

Parameters

cepstra

the matrix of mel-cepstra, will be numframes * numcep in size.

l

the liftering coefficient to use. Default is 22. L <= 0 disables lifter.