1.400646	1.907458	whistle 1
3.243601	4.367803	call 1
44.682442	45.170825	whistle 2
45.751355	46.083087	whistle 3
49.289829	49.593916	whistle 4 
53.178464	53.528625	whistle 5
55.823104	56.228554	whistle 6