pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound travel faster than light pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound travel faster than light pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound pulses of sound