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this post was submitted on 23 Jul 2023
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Android
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Because it needs an extra dongle that isn't free and most headphones use an ordinary audio jack.
Charging while listening.
And above all, if it ain't broke don't fix it.
This is actually terrible logic and stifles innovation. The flip phone wasn't broke....but now we have smart phones with screens.
Touchscreen fixes the problem of maximizing the screen on the device. How does removing a jack port fixes the audio problem?
Condenses the ports to one standard. Instead of an audio and a USB-C, you just have a USB-C. So now you can fit more/different stuff in the internals or streamline the device to make it slightly smaller or thinner. Far enough down the line when most everyone is on board, can remove support for it from the kernel, minimizing the code footprint, attack surface, and code maintenance.
Sure, it sucks now as we're in the midst of it and people are resistant to change, but fast forward to when it's universally adopted and accepted, it'll be better.
But this is almost all false or just speculation.
Instead of having audio and usb-c, now you have usb-c port, usb-c headphone dongle, the finally audio port and usb-c port again. Unless you want to intentionally buy a usb-c exclusive set of headphones that won't work with whatever next "revolutionary port technology" comes out.
As long as they still work, good headphones from 40 years ago are still good. Headphone tech has not significantly changed. Amps, DACs, etc have, but not the actual drivers.
As far as space goes, reasonable DAC components are getting smaller and smaller while phones tend to be getting larger as people want more screen space. The space savings on hardware here is not significant. Seriously go and look up sizes of the components needed for audio out.
As far as thinner goes, the width needed for a headphone jack is like 2mm more than what's needed for a usb-c port, and there's width needed for internal speakers either way. I'm also not sure how much thinner people want cell phones to be at this point. We're pretty close to the point of sacrificing device drop resistance for size anyway (arguably we've passed that point with most people doubling the size of their phone with a protective case). Not to mention that the real thing preventing more thinness is the camera lenses now, as easily evidenced by the camera island bumps all phones have now.
Lastly, you can't seriously be arguing that analog audio out represents any significant amount of attack surface kernel wise. Like holy shit man. Wow. Yes, technically every line of code is increased attack surface, but it's a huge assumption that USB-C audio is in any way more secure or less surface.