No audio on older versions

this is a bit of a weird bug and I think it has something to do with the java launcher but. I'm really confused about this. so today I was like I'm going to play the original 1.0 release of Minecraft (nostalgic reasons) and i downloaded it opened it annnddd.. no sound?? i installed 1.7.2 beta still no sound i installed 1.7.2 release still no sound. i reinstalled the game and installed the current version (1.12.2) and i have sound but then i reinstalled older versions (1.0 release) again and i am still having no sound on the old versions of Minecraft. is there anyone out there that would be willing to help me out? so confused right now. i also have noticed that there are no such things as audio files in the assets directory (i think some files are missing) as seen in the image posted. i have also noticed this in the log files.

[13:42:32] [Client thread/INFO]: LWJGL Version: 2.9.0

[13:42:32] [Client thread/INFO]: LWJGL Version: 2.9.0

[13:42:32] [Client thread/ERROR]: Couldn't set iconjavax.imageio.IIOException: Can't read input file! at javax.imageio.ImageIO.read(ImageIO.java:1301) ~[?:1.8.0_25] at azd.a(SourceFile:500) ~[1.7.2.jar:?] at azd.Z(SourceFile:340) [1.7.2.jar:?] at azd.e(SourceFile:689) [1.7.2.jar:?] at net.minecraft.client.main.Main.main(SourceFile:103) [1.7.2.jar:?

[13:42:32] [Client thread/INFO]: Reloading ResourceManager: Default

[13:42:33] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas

[13:42:33] [Client thread/INFO]: Created: 256x256 textures/items-atlas

[13:42:33] [Sound Library Loader/INFO]: Sound engine started

[13:42:34] MCO Availability Checker #1/ERROR: Couldn't connect to Realms

[13:42:37] [Client thread/WARN]: Unable to play unknown soundEvent: minecraft:gui.button.press

[13:42:38] [Client thread/WARN]: Unable to play unknown soundEvent: minecraft:music.menu

[13:42:41] [Client thread/WARN]: Unable to play unknown soundEvent: minecraft:gui.button.press

[13:42:42] [Client thread/WARN]: Unable to play unknown soundEvent: minecraft:gui.button.press

[13:42:43] [Client thread/INFO]: Stopping!

Edit: i have found out through testing that anything below version 1.6.1 release has no audio. if anyone could help me that would be awesome!