Play example (27K)
Opening measures of Beethoven's Fifth Symphony
This graphic is
what an audio file looks like if plotted on a graph with time on the horizontal
and amplitude or volume on the vertical. Notice the four peaks or "spikes" --
each correspond to the four notes played in the excerpt.
Seeing that the example is a monophonic audio file, there is only one graph. Stereo files would have two.
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