what does outer space consist of?
For the purposes of sound transmission, it is effectively a vacuum.
ok. i better stop now before my brain completely closes down. i am not grasping what you are saying.
By sound, we commonly mean the vibrations that travel through air that are of the frequency that people can hear.
Sound travels in waves through matter, usually air, but sometimes other kinds of matter.
There is no air in outer space. It's mostly empty space.
If there is no matter for the sound to travel through, then there is no sound.
Those sound effects of space battles on Star Wars or Star Trek would be impossible IRL.