Here’s how Apple could automate stereo pairing for a standard HomePod setup

In my HomePod Diary piece yesterday, we enclosed what was roughly a throwaway comment:

One bauble is that we have to allot a left and right channels manually. Given that many people will, we imagine, orientate a speakers so that a volume controls are a right approach up, we would have suspicion a span of HomePods ought to be means to figure out a channels for themselves. Play a sound by one orator and afterwards use a directional mics on a other one to figure out possibly a sound is entrance from a left or right.

It’s a teenager quibble, given that it takes seconds to allot them manually, though it somewhat annoyed my clarity of technological potency that they compulsory me to do it.

Little did we know how many comments that one tiny suspicion was going to beget …


Some upheld a idea, and concluded with me that it should work for a standard setup.

Others argued that it wouldn’t in some scenarios, possibly describing their possess sold room blueprint or a suppositious one they could suppose some competence have.

Yet others didn’t seem to follow my reasoning, so we suspicion I’d write a brief square surveying how we would see it working.

First of all, we am creation an assumption: that many people are going to orientate a speakers so that a volume controls on a tip row are positioned normally. That is, volume down on a left, volume adult on a right. This also has a wire rising from a back of a speaker, that is how I’d pattern many people to arrange them.

If we cite your wire off to a side, or wish a straight volume arrangement, than yep, a suspicion falls over there.

Those of we who celebrated that it wouldn’t be probable in all room configurations are positively correct. we can consider of a integrate of room layouts where HomePod would have no approach of revelation that was left and that was right, as it would count where we were sitting.

Where it wouldn’t work

Let’s start with room configurations where involuntary set adult wouldn’t work:

In both examples, HomePod would have no approach of meaningful possibly your lounge was positioned in a primary or delegate positions shown, and therefore no approach to allot left or right channels.

Where it would work

However, my theory is that many bedrooms are configured some-more like this:

HomePod can already tell how tighten it is to a wall, as a beamforming technology uses this information as partial of a involuntary set adult process. Here’s how Apple describes a process:

Place HomePod anywhere in a room. It automatically analyzes a acoustics, adjusts a sound formed on a speaker’s location, and separates a song into approach and ambient sound. Direct sound is beamed to a center of a room, while ambient sound is diffused into left and right channels and bounced off a wall. So your song sounds amazing, wherever we are in a room.

And here’s a painting it uses, clearly display that HomePod is means to detect a wall:

How it would work

So, here’s how we see it operative in this room layout:

HomePod does a common automobile set adult and total out that both speakers have a wall behind them, and therefore a listeners are on a other side of a room. One orator can detect a wall tighten to a left, so guesses it is a left speaker. The other orator can detect a wall tighten to a right, so guesses it is a right speaker.

To confirm, orator 1 – that believes it is a left orator – plays a sound. If orator 2 hears orator 1 from a left, afterwards HomePod’s theory is scold and orator 2 configures itself as a right channel.

If it gets paradoxical results, or detects some room pattern where it’s unfit to tell where a listeners are, afterwards it reverts to primer pattern (which is indeed a theory with a 50/50 possibility of being right).

The beauty of this is it would be totally pure to a user. What happens right now, is HomePod already guesses and asks we to scold it if it’s wrong. Which will be half a time. With my suggestion, zero changes for a user – solely it would customarily be right.

Does any of this matter?

Well, ok, not much. It’s such a elementary routine to daub a symbol to scold a theory that it isn’t accurately a large understanding possibly HomePod was right or wrong.

But Apple has mostly pronounced that pattern – and user interface pattern in sold – is in a detail. Having a high possibility that HomePod configures itself rightly is, we suggest, improved than a 50/50 chance. It’s one of those tiny sum that we consider helps supplement adult to a good user experience.

Plus, we know, I’m a geek: if something can be automated, it should be automated.

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