[kevincox]

To tangent on the device switching. Are there any headphones that mix all active streams? Why not?

Some guesses:

1. Energy use? It should be pretty easy to avoid complex mixing when only one stream is active anyways. If multiple streams are active then it is probably worth the energy cost.

2. Bluetooth bandwidth? I can imagine that if you are using the same hardware to manage all connections you can run out of bandwidth?

Because this bugs me a lot. My headphones (non AirPods) usually get it right. But even then the switching is often slow. Of course they also sometimes connect to the wrong device and then it is a huge pain.

[cbhl]

Genki Waveform is supposed to do this for two streams but it's still at the kickstarter stage so ymmv. (The pitch is primarily for Nintendo Switch users since they have successfully launched three other devices to that user base to date, including a USB-C-to-Bluetooth audio adapter.)

[fragmede]

When Apple's top end headphones cost $600, and plenty of headphones saree in the $300 range, I don't think it's a cost thing. I wish there were headphones that did this, that would be a real game changer.