// set silence threshold very low to output beats even during silence
// aubio_tempo_set_silence(tempo, -1000.);
if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);
// set silence threshold very low to output beats even during silence
// aubio_tempo_set_silence(tempo, -1000.);
if (onset_threshold != 0.) aubio_tempo_set_threshold (tempo, onset_threshold);