func B2MC(b []float64, alpha float64) []float64 {
mcep := make([]float64, len(b))
m := len(b) - 1
C.b2mc(
(*C.double)(&b[0]),
(*C.double)(&mcep[0]),
C.int(m),
C.double(alpha))
return mcep
}
func MGCep(audioBuffer []float64, flng, m int, a, g float64, n, itr1, itr2 int,
dd float64, etype int, e, f float64, itype, otype int) []float64 {
resultBuffer := make([]float64, m+1)
C.mgcep(
(*C.double)(&audioBuffer[0]),
C.int(flng),
(*C.double)(&resultBuffer[0]),
C.int(m),
C.double(a),
C.double(g),
C.int(n),
C.int(itr1),
C.int(itr2),
C.double(dd),
C.int(etype),
C.double(e),
C.double(f),
C.int(itype))
if otype == 0 || otype == 1 || otype == 2 || otype == 4 {
C.ignorm((*C.double)(&resultBuffer[0]),
(*C.double)(&resultBuffer[0]),
C.int(m),
C.double(g))
}
if otype == 0 || otype == 2 || otype == 4 {
C.b2mc((*C.double)(&resultBuffer[0]),
(*C.double)(&resultBuffer[0]),
C.int(m),
C.double(a))
}
if otype == 2 || otype == 4 {
C.gnorm((*C.double)(&resultBuffer[0]),
(*C.double)(&resultBuffer[0]),
C.int(m),
C.double(g))
}
if otype == 4 || otype == 5 {
for i := int(m); i >= 1; i-- {
resultBuffer[i] *= float64(g)
}
}
return resultBuffer
}