WEBVTT

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did you know that bluetooth audio has been mostly unchanged since 2003 i mean

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this was three years before spotify launched and four years before we even

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got the first ipod and while i'm sure you have a pair of bluetooth headphones

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or a wireless speaker you absolutely love there are actually quite a few

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shortcomings in the bluetooth spec most of us know and love but

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huge changes are just around the corner as Android 13 is including support for

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bluetooth le audio with the le standing

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for low energy admittedly the name isn't particularly

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exciting please clap low energy might make you think of a laptop CPU that's

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advertised as being super power efficient but also frustratingly slow

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but bluetooth le audio promises to be better in every way let's start out with

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the biggest concern for most average users battery life although the

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companies that make wireless headphones and speakers try and make a long battery

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life a major selling point the fact is that they're all using the same outdated

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and inefficient bluetooth classic protocol to receive audio signals it's

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actually inefficient enough to have a significant impact on power consumption

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both on your headphones and your phone but how does bluetooth le use less

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energy at the heart of the new protocol is the lc3 codec and if you don't know

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what a codec is it's just a piece of software that encodes or decodes audio

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signals so they can be sent out in a compressed form to save on power and

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bandwidth lc3 uses a new compression algorithm that allows for higher quality

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audio at a lower bit rate meaning less data will be transmitted resulting in

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lower power consumption without compromising on sound sounds too good to

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be true and it almost is well this doesn't mean bluetooth le is suddenly

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going to deliver audio that matches a lossless experience with wired

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headphones it should be a noticeable improvement over the current codec sbc

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although there already are higher quality codecs available for Android

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like your crazy x they have their own issues aac famously used by apple

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devices has quality and battery consumption problems on Android go

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figure and ldac and optics from sony and qualcomm respectively are well

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proprietary so if a headphone maker wants to support these they have to pay

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extra for a license meaning not only are they harder to find they're also more

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expensive for consumers by contrast lc3

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is a required part of the bluetooth low energy spec moving forward so support

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for it should be much broader and there are other really cool improvements other

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than sound quality and battery life which we'll tell you about right after

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we thank freshbooks for sponsoring today's video whether you own a business

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freshbooks.com techwiki even though having multiple speakers or headphones

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play the same thing from one source is relatively easy to do with a wired setup

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there hasn't really been a good not proprietary way to do this over

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bluetooth so far that's changing with bluetooth le audio thanks to a feature

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called auracast this should support use cases as simple as two people trying to

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listen to the same song on separate headphones to hundreds of people

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receiving announcements at an airport they might otherwise miss because

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they're listening to spotify we might even see places like gyms and sports

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bars adding auracast to allow people to listen to the tv of their choice which

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might otherwise be muted as picking an auracast source on your phone should be

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just as easy as selecting a wi-fi network and if you're watching this

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video on a bluetooth speaker you might notice that the words you hear are a

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little out of sync with my mouth bluetooth le should also help address

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this because it has lower latency especially important if you like to use

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bluetooth audio for gaming combine all this with better performance over

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distance more accurate stereo sound thanks to each earbud getting its own

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audio stream and even support for spatial or surround sound without

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needing any special software and bluetooth le audio should at the very

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least make wireless audio less of a pain

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and it's supposed to be simpler than a tangle of wires how did this happen and

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how did this video end so quickly oh well

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