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examples/aubioonset.c: use built-in silence

--- a/examples/aubioonset.c

+++ b/examples/aubioonset.c

@@ -28,16 +28,13 @@

 aubio_wavetable_t *wavetable;

 fvec_t *onset;

 smpl_t is_onset;

-uint_t is_silence = 0.;

 void

 process_block(fvec_t *ibuf, fvec_t *obuf) {

   fvec_zeros(obuf);

   aubio_onset_do (o, ibuf, onset);

-  if (silence_threshold != -90.)

-    is_silence = aubio_silence_detection(ibuf, silence_threshold);

   is_onset = fvec_read_sample(onset, 0);

-  if ( is_onset && !is_silence ) {

+  if ( is_onset ) {

     aubio_wavetable_play ( wavetable );

   } else {

     aubio_wavetable_stop ( wavetable );

@@ -51,7 +48,7 @@

 void

 process_print (void)

 {

-  if ( is_onset && !is_silence ) {

+  if ( is_onset ) {

     outmsg ("%f\n", aubio_onset_get_last_s (o) );

   }

 }

@@ -63,11 +60,15 @@

   verbmsg ("onset method: %s, ", onset_method);

   verbmsg ("buffer_size: %d, ", buffer_size);

   verbmsg ("hop_size: %d, ", hop_size);

-  verbmsg ("threshold: %f, ", silence_threshold);

+  verbmsg ("silence: %f, ", silence_threshold);

   verbmsg ("threshold: %f\n", onset_threshold);

   o = new_aubio_onset (onset_method, buffer_size, hop_size, samplerate);

-  if (onset_threshold != 0.) aubio_onset_set_threshold (o, onset_threshold);

+  if (onset_threshold != 0.)

+    aubio_onset_set_threshold (o, onset_threshold);

+  if (silence_threshold != -90.)

+    aubio_onset_set_silence (o, silence_threshold);

+

   onset = new_fvec (1);

   wavetable = new_aubio_wavetable (samplerate, hop_size);

-- 

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