11. Before delivering a pitch, the bowler gives an audible signal to the batsman, who signals back if he is ready. 12. At random intervals when the inmate is home, an audible signal is sounded and the inmate must take the test. 13. Both use clicker or buzzer training; the dog hears an audible signal and then gets a treat after performing correctly. 14. On Saturday, Holmgren changed the Packers'audible signals , because they were identical to the ones he had used as the Niners'offensive coordinator. 15. I used the UPStart for about 17 months, then one day I got an audible signal warning me the battery was dead. 16. The pedal can have a vigilance function built in, where drivers must release and re-press the pedal in response to an audible signal . 17. The problem was traced to the power supply of the equipment which converts the signal from the atomic clocks into an audible signal . 18. Raab compares LIGO to a big microphone " listening " for gravitational waves with equipment that can convert those waves to audible signals . 19. Visual and audible signals notify you when sensor life has expired . " talk ) 16 : 06, 7 February 2012 ( UTC) 20. Later, in 1861, the One O'Clock Gun was established at Edinburgh Castle to provide an audible signal when fog obscured the time ball.