Physics does not apply differently to Digital and analog sounds.
Sounds travels in a straight line from its source to your ear. The ordered compression of air molecules renders a wave like this:
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between the source and your ear. If you were to turn sound in the same manner that you would a JPEG, you would not hear the sound since the compressed front of air (or whatever medium the sound is traveling in) would not strike your eardrum (it is not traveling in the same direction). The reason you can hear a speaker when it is not "aimed" at your ear is because regular speakers cannot target sound linearly. There are always some component sound waves that are traveling between the speaker and your ear. It is these that you hear.
[edit: typo]
Sounds travels in a straight line from its source to your ear. The ordered compression of air molecules renders a wave like this:
| |||| | |
between the source and your ear. If you were to turn sound in the same manner that you would a JPEG, you would not hear the sound since the compressed front of air (or whatever medium the sound is traveling in) would not strike your eardrum (it is not traveling in the same direction). The reason you can hear a speaker when it is not "aimed" at your ear is because regular speakers cannot target sound linearly. There are always some component sound waves that are traveling between the speaker and your ear. It is these that you hear.
[edit: typo]
