parents tend to yell at the same time and it needs simultaneous processing

vanderZwan 2 hours ago | parent | next [-]

Your example is needlessly bleak, but in general: yes, we're a social species and being able to process multiple speech streams seems obviously pretty important in many social contexts involving more than two people.

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eurekin 4 hours ago | parent | prev [-]

Also explains why we like music with two simultaneous distinct sections (bass + the rest). One without the other doesn't feel as complete

	▲	junon 4 hours ago \| parent [-]
		This is a completely different phenomenon. Your ear/brain are tuned to rhythmic beats in the lower frequencies (footsteps). We're better at pattern recognition with the lower frequencies. Also, our brains will encode the differences in registers to evoke emotion differently, which is often used by horror films to make a scene scarier[0]. Evolutionarily this is probably to detect screams or babies crying, a rustling bush, etc. Speech encoding, at least per this article, has little to do with that. We don't have music encoding so much as we have pattern recognition, instinctual emotional respond to sound, etc. Another great video about how music is perceived in animals is [1], just while we're on the topic. [0] https://www.atlasobscura.com/articles/how-the-hidden-sounds-... [1] https://youtu.be/0ZYhyewNQMo?is=0mWSRAzObOD2p32E