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Comment by major505 | Hacker News Reader

Weel I don't think any bluetooth headphone would work with that. I don't know how it works with headpones, but Douby Atmos you need at least 7 good speakers to make it work well in a movie: * Front left * Front right * center * surround pair. * back pair.

Also you need a Subwoofer and if you gonna implement a perfect set, you still need 4 ceiling speakers to have the full effect.

This cost of entry is the reason I still didn't put it in my house.

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You only have two ears. If you can isolate them, as in headphones, you don't need more than two speakers.

The reason Dolby Atmos requires so many speakers is that each speaker is heard by both ears, like in real life, as a result you need a setup closer to real life. In addition, in theaters, people seat all over the place, so you need even more speakers to widen the "sweet spot".

Lossless audio isn't the same as Dolby Atmos, which does work with AirPods Max and AirPods Pro.

Strangely enough, Apple's most advanced ear pods/headphones and the like change the audio you hear as you move your head. Kind of gimmicky, but they do technically have a way to render spatial audio even though they only have two speakers.

Serious question: You only have 2 ears so theoretically headphones should be able to produce the same experience as 7 speakers in a room. I imagine that is a hard problem, but is my understanding correct? Anyone know how hard this is?

That’s exactly what spatial audio is doing.

Thanks, somehow that was lost on me initially.

> you need at least 7 good speakers to make it work well in a movie

You don't - they use head-related transfer function filters (the Fourier transform of head-related impulse response) to make it work from a single pair of speakers.

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