We have developed an online spectrograph program with a bank of over 30 audio clips to visualise a
variety of sounds. Our audio library includes everyday sounds such as speech, singing, musical
instruments, birds, a baby, cat, dog, sirens, a jet, thunder, and screaming. We provide a link to a
video of the sound sources superimposed with their respective spectrograms in real time. Readers can
use our spectrograph program to view our library, open their own desktop audio files, and use the
program in real time with a computer microphone.