Hi, I did a tutorial on how to fix your sounds for old beta 1.7.3 This is an old version of minecraft released in 2011. I did this tutorial because these versions are unstable do to mojang screwing up the game. Launchers can't fetch the old sound files automatically so you have to manually input them.

1. Download MultiMC: multimc.org/

2. Download the files I provided in the description: Here

3. Create a new instance in MultiMC.

4. Open the MultiMC instance folder

5. Replace the resources file inside the b1.7.3/.minecraft with the one in the provided download

6. Restart your game and open singleplayer.

7. Hit F3 + A at the same time.

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