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23 #ifndef INCLUDED_FFT_IMPL_GOERTZEL_H
24 #define INCLUDED_FFT_IMPL_GOERTZEL_H
39 goertzel(
int rate,
int len,
float freq);
41 void set_params(
int rate,
int len,
float freq);
47 void input(
const float &in);
49 bool ready()
const {
return d_processed == d_len; }