So your precision with technical language seems sorely limited. Sound is a form of energy. Hearing is the perception of sound. ...
Certainly "sound wave" is a form of energy; however as has been in common use in this thread, Sound is the perception (note also both are nouns.) For example, the classic question:
"When a tree falls in the forest does it make a sound if no one is there to hear it?"
is central to the turn this thread has taken. I answer that question: No. It makes small amplitude oscillations in the air pressure, which travel and are called "sound waves."
Your "Hearing is the perception." is grammatically nonsense - the same as saying "Baking is the cake." I.e. you have equated a participle form of a verb to a noun. You cannot do this as they differ in TYPE.
Many, including you, sometimes use "sound" when they actually mean “sound waves,” but that is not as precise or as correct as I was. Especially in the context of the current discussion, “sound” requires an organism which can detect sound waves. Some may restrict "sound" to human perception and answer the classic “falling tree in forest” question to effect that there is no sound made if no human is there to hear.
I would be curious: Does a “silent dog whistle” make sound, or only sound waves?
To be more specific:
Consider an ultra sound device making 100 kHz air pressure energy waves. Is it making sound, even though the frequency is about five times higher than any human can hear? If you stick by your "Sound is a form of energy" nonsense*, you must respond "Yes" but I hope you will adopt my more precise terminology and say “No it is making sound waves but not sound,” or at least stop equating verb form terms to nouns.
*
SUMMARY:
Correctly and precisely stated:
(1) Sound waves are a form of energy.
(2) Sound is the perception produced sound waves.
Your "Sound is a form of energy" is wrong or at best lacking in precision.
Your "Hearing is a perception" is wrong and even a grammatically impossible construction. Is English not your native language?