Spectrogram 4.2 Data
D:\Renzo\OilDrum\New\OilDrum4a.wav
Event   Time    Freq    Level (dB)

a	139	206	-42
b	75	394	-30
c	75	849	-41
d	97	1037	-43
e	71	1263	-41
f	83	119	-40