When I will talk about the specific meanings of different sounds, that will be well supported by scientific reasoning.
That is precisely the problem: no, it is not. Your reasoning is not scientific, as we have told you multiple times. Repeating a nonscientific argument does not make it more correct.
I do not understand that what is unscientific in this statement.
Let us start again.
1. We are not deaf.
2. We can hear different sounds.
3. We can recognize different sounds.
4. We can memorize different sounds.
We are not talking about the human languages. I think ..... we do not need any scientific proof up till now.
5. Sound is a vocal gesture. (Animal interaction is a proof)
6. Gesture is made of identity (shape) of gesture and meaning of gesture.
7. Different sounds are made of different vocal gestures.
8. Hence different sounds have different meanings.
Still we are not talking about human languages. If you are not agree with these above 8 points please give me point no, and if you are agree, I will move further.