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I know zero about this topic. Are there dynamic audio sensors that could provide real time adaptions to the room audio profile? Something like a light meter in photography?

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Only for the trivial cases. You could tell if the speaker is placed in a drastically bad place, ie it sounds bad everywhere, but you wouldn't be able to tell if the speaker sounds good where the listener is. For that you need to put a microphone (which itself would need to be of relatively good quality) where the listeners ears are.

Even with measurements like that, it's pretty nontrivial to compensate for it. It's technically a proven problem[1] (solvable for some convex shapes) but its a little more complex than just adjusting the volume or phase of a given frequency. A room -and by extension all the little nooks and crannies of a room- acts as a resonator, and will gather and sustain notes. You need to counter that sustain ahead of time.

1: https://en.wikipedia.org/wiki/Hearing_the_shape_of_a_drum

I believe apple homepods do this - “ Direct and ambient audio beamforming Computational audio for real-time tuning”[1]

[1] https://www.apple.com/homepod-2018/specs/

Beamforming is a way of taking an array of drivers and manipulating their phase and frequency response to direct the sound in a calculated direction. IE, you can have seven drivers in a ring, and you can direct the sound in ONE direction instead of ALL directions.

Amazon Alexa does the same thing, except with an array of microphones.

Ah, I figured that would help with this issue as well but I can see it’s a different thing now, thank you.

That's exactly what the digital room correction is that the comment you replied to mentioned, except it's not real-time, since the profile doesn't change rapidly. You push a button to run it every time you make major room changes like moving the speakers.

Ah gotcha. Thanks!

oh absolutely. http://accueq.onkyousa.com/

I wonder why this is not more common.

It should take a (cheap) microphone with a known response curve and a sine wave generator to calibrate any number of speakers in a room.

Most midrange A/V receivers come with mics these days to do this sort of calibration. For example, Denon's version of this is called Audyssey http://manuals.denon.com/avrx4100w/NA/EN/GFNFSYnuokgukf.php

It's quite common, actually. Yamaha, Onkyo, Denon, Marantz all have versions of it on nearly all their home-theater receivers.

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