I can smell my own body odor pretty easily after smoking DMT. I become very attuned to some of the staler scents in my room (I'm a young messy male, what can I say
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)
On LSD, I consistently hallucinate some made-up taste like metallic cotton candy or something like that. It's pretty annoying. I'm pretty sure it's not really there, or if it is, perhaps it's the taste of my mouth....probably not.
Lastly for hearing, I think beyond a shadow of a doubt it increases my hearing. I can become quite aware of chatter and sounds from afar and behind walls with increased clarity. The respatialization of the sound into layers helps to unclutter a jumble of mumbled sound.
"Science without religion is lame. Religion without science is blind" - Albert Einstein
"The Mighty One appears, the horizon shines. Atum appears on the smell of his censing, the Sunshine- god has risen in the sky, the Mansion of the pyramidion is in joy and all its inmates are assembled, a voice calls out within the shrine, shouting reverberates around the Netherworld." - Egyptian Book of the Dead
"Man fears time, but time fears the Pyramids" - 9th century Arab proverb