DNA from cave art is now possible

[rampartd]

2. ostrich? a little low. they go 30 hz - 100hz

Last edited Wed Jul 8, 2026, 07:03 AM - Edit history (1)

there is an A at 55 hz, but this octave seems low for human women/children

a baritone is 110 hz at the low end. bass bottoms out at 82 hz. i wonder if the great opera basses go lower? could that be like a contrabass or something?

did i just notice that our electrical grid is tuned to A?

basso profundo begins at 82.5 hz . C i think. but ostrich, the most dangerous bird to australopithecines, might be out of vocal range?

maybe language was used searching for prey rather than avoiding predatory danger. the nile crocodile . definitely low.

ok found the charts of voice frequencies and a start on birds.

a coaches whistle/police whistle would be 2300-5k hz. i knew that was high.

but give me a break, coach, an electronic whistle?

https://www.amazon.com/s?k=electronic+coach+whistles&adgrpid=1346904323867695&gb=2&hvadid=84181808259570&hvbmt=bp&hvdev=c&hvexpln=0&hvlocphy=73604&hvnetw=o&hvocijid=17151504954648849221--&hvqmt=p&hvtargid=kwd-84182751097666%3Aloc-190&hydadcr=9728_13843775&mcid=16a571149b253711b996c5b9e431d30d&tag=mh0b-20&ref=pd_sl_4kc9h3s4ht_p