The same happens with other new sounds as well when they are repeated or looped. It seems to happen as you are moving away from the sound source across the threshold where you should stop hearing it. The new water flowing, lava bubbling, mobs splashing in water and minecarts rumbling on their tracks all can cause this.
Adam Marculewicz
The same happens with other new sounds as well when they are repeated or looped.
It seems to happen as you are moving away from the sound source across the threshold where you should stop hearing it.
The new water flowing, lava bubbling, mobs splashing in water and minecarts rumbling on their tracks all can cause this.
screenshots: http://imgur.com/a/NwqfB
My computer is definitely aging, but simply turning sound on or off should not be causing anywhere remotely near a 100 fps swing.
Edit: Just tried the OpenAL update fix suggested below and it definitely helps a LOT for me.