click = 0.7 * np.sin(2. * np.pi * np.arange(hop_s) / hop_s * samplerate / 3000.)
# pyaudio callback
-def pyaudio_callback(in_data, frame_count, time_info, status):
+def pyaudio_callback(_in_data, _frame_count, _time_info, _status):
samples, read = a_source()
is_beat = a_tempo(samples)
if is_beat: