Answer:
High pitch sound has high frequency. Frequency is not energy. The energy in a sound is related to its volume, not its pitch (frequency.) You may be confused by a related fact about light. Light travels in discrete packets of energy called photons. The energy of a single photon is proportional to its frequency, and the brightness of the light is dictated by the number of photons present. (Actually, the number of photons arriving per second.) But the same is not true of sound.