int len_samples = int(ceil(pulses.back().start + (pulses.back().end - pulses.back().start) * 2));
- fprintf(stderr, "%d pulses, total %.2f seconds (%d samples)\n", pulses.size(), len_samples / float(WAVE_FREQ), len_samples);
+ fprintf(stderr, "%d pulses, total %.2f seconds (%d samples)\n", int(pulses.size()), len_samples / float(WAVE_FREQ), len_samples);
int pulse_begin = 0;