WEBVTT

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for the first time in 8 years a new Full

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Bluetooth version has been launched Bluetooth 6.0 is here but are the new

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features things you'll actually be excited about that might depend on you

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let's get right into it with a cool feature called Channel sounding because

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Bluetooth is very commonly used to locate misplaced devices Channel

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sounding was implemented to make this process more accurate by using two new

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techniques to locate devices the first called round trip time notes the exact

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time a signal leaves one device the time it arrives at the second device and how

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long it takes to come back to the first device to help calculate the distance

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between them the second technique is called PBR and no I'm not talking about

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the greatest beer to ever grace this fin land PBR stands for phase-based ranging

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which measures the difference in the phase of the wave that travels between

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the two devices Bluetooth 6.0 can leverage both techniques at the same

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time to judge distances more accurately than the the previous method which

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mostly relied on measuring signal strength and angles Channel sounding is

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supposed to allow you to pinpoint a device's location down to a few

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centimeters under optimal conditions similar to the ultra wide band Tech that

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Apple uses in its air tags but since Bluetooth is a widely used open standard

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the hope is that Bluetooth 6.0 will make precise location measurement more

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accessible if you're not in the Apple ecosystem Channel soundings better

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distance sensitivity also has implications for physical security as it

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can be used to ensure that things like Bluetooth operated smart locks can only

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be operated by someone who's both authorized and in close proximity to the

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lock and not by some sneaky boy in a

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different room but if you're the type of person that you know just never loses

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anything there are other Bluetooth six features you might care about which

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are a pair of features in Bluetooth 6 that refer to advertising but

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fortunately they have nothing to do with ads for things like this lovely shirt

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from LTT Store I'm wearing thank goodness instead these features are

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actually meant to help your Bluetooth devices suck down less battery what the

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advertising battery I'll explain the

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first feature is called decision-based advertising filtering and it works with

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Bluetooth low energy which is used by a huge number of devices and utilizes

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multiple channels basically radio frequencies to transmit data these

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channels are split into primary and secondary with the primary channels

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mainly being used for advertising that is telling other nearby devices that a

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certain Bluetooth device is present it's how your phone detects your earbuds or

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how your laptop detects your Bluetooth mouse with this new feature a device can

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listen to the data being sent to it on a primary advertising Channel and use that

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data to decide if the remaining data on the secondary channels is relevant to

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what the application is doing this means that your device won't waste battery on

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scanning for and processing extraneous transmissions for example imagine a

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music app trying to listen for music signals if it hears an advertising

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packet from a fitness tracker on the primary Channel it knows it can ignore

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the data on the secondary channel so it doesn't waste energy processing your new

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personal best clean and jerk that's a fitness thing Glenn the other

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advertising feature is called monitoring advertisers and it's a bit more

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straightforward Bluetooth devices often cannot know if a Sav device they want to

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connect to is within a close enough range this means that a device can waste

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a lot of energy searching for the gadget it's trying to connect to even if it's

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well out of range like if you leave your Bluetooth speaker at home this is where

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monitoring advertisers comes in the device instead tracks when a device

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moves out of range so the host device will stop trying to connect to it once

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the device moves back into range like when you get home the host will know

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that too so it can automatically reconnect and speaking of speakers LOL

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there are also minor changes to exactly how data packets are delivered that

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should decrease audio latency meaning an improvement in how well the sound coming

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out of your headphones matches what's happening on the screen not going to say

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no to that of course we should note that Bluetooth 6.0 is just a specification

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for now and it's up to manufacturers to start including it in their products

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while we do expect this will happen there have actually been cases in the

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past where a technology failed partly because no one made anything for it

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which is exactly what happened to wireless USB so if you want to learn

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more about why that failed go watch this video next it's fascinating