Analyze a blue whale call!

Name


  1. Analyze the blue whale call. Notice all the features of the sound waves created by this blue whale talking to other blue whales. Select the choice below that BEST describe what the sound waves are doing over time (how the sound changes over time).

    The sound starts at a high amplitude, then decreases for several seconds. Then it increases and decreases several times. There is only one pitch in the sound.
    The sound starts out with a high amplitude and then decreases steadily until it stops. There are multiple pitches in the sound.
    The sound starts at a low volume, gets lower, then increases. It then stays the same for several seconds. There is only one pitch in the sound.
    The first second starts with lower amplitude, then increases in amplitude for a few seconds where the amplitude drops and then levels out till the end of the call, where it increases a bit. There are multiple pitches in the sound.