1
00:00:00,080 --> 00:00:07,520
you know what really burns my popcorn bluetooth i mean sure it's convenient

2
00:00:05,839 --> 00:00:13,440
and those little wireless speakers are super handy but i've got a lot of

3
00:00:09,599 --> 00:00:15,440
problems with bluetooth and now

4
00:00:13,440 --> 00:00:20,640
you're gonna hear about them first off guess which frequency band bluetooth

5
00:00:17,440 --> 00:00:23,119
uses surely it couldn't be 2.4 gigahertz

6
00:00:20,640 --> 00:00:27,519
right you know the same one that every wi-fi router blasts out a signal on

7
00:00:25,519 --> 00:00:31,920
making the band more clogged than a toilet at chipotle oh wait yeah that's

8
00:00:29,920 --> 00:00:36,399
exactly what frequency it uses so from the get-go your little bluetooth devices

9
00:00:34,160 --> 00:00:40,719
are already competing with tons of other wireless traffic which can reduce your

10
00:00:38,160 --> 00:00:46,399
effective range but hey i'm just getting started why exactly is bluetooth so

11
00:00:44,079 --> 00:00:50,320
range limited in the first place look i know that whenever you're using

12
00:00:48,640 --> 00:00:55,039
something wireless there's a trade-off between range and battery life since

13
00:00:52,800 --> 00:01:00,399
blasting a signal farther away sucks down more power but what good is long

14
00:00:58,239 --> 00:01:04,320
battery life if i'm constantly having to worry if i'm too far away from my

15
00:01:01,840 --> 00:01:09,200
bluetooth speaker i mean sure sometimes it's not a big deal but i

16
00:01:07,200 --> 00:01:13,200
don't want the signal to be so anemic that it just drops out if i take my

17
00:01:11,119 --> 00:01:17,439
phone into the other room because a few sheets of drywall are in the way come on

18
00:01:16,159 --> 00:01:21,280
oh and while we're talking about drop-offs let's move on to another

19
00:01:19,200 --> 00:01:25,360
common source of frustration pairing issues you'd think they could have made

20
00:01:22,799 --> 00:01:29,200
this simple like wi-fi your gadget sees another gadget like your phone and your

21
00:01:27,360 --> 00:01:35,040
router do and they just they just connect they just do it but no

22
00:01:32,400 --> 00:01:39,360
instead you have to take the extra step of putting your devices in discovery

23
00:01:37,439 --> 00:01:42,560
mode before they can see each other turns out that unlike wi-fi where you

24
00:01:41,119 --> 00:01:46,479
can usually just see a network automatically you can't do this with

25
00:01:44,560 --> 00:01:50,399
bluetooth unless you have some optional additional technology strapped on like a

26
00:01:48,399 --> 00:01:54,479
pair of nfc transmitters and once you deal with that you get another headache

27
00:01:52,560 --> 00:01:59,280
because the powers that be created bluetooth profiles one for streaming

28
00:01:57,360 --> 00:02:03,439
music one for phone calls one for connecting your computer mouse and so on

29
00:02:02,000 --> 00:02:06,479
and while i get the reason they did this was to save battery life here's the

30
00:02:05,439 --> 00:02:12,800
problem none of these things have been tested to play nicely with each other which is why

31
00:02:10,640 --> 00:02:16,560
sometimes your car's infotainment system will work better with your phone than it

32
00:02:14,959 --> 00:02:20,879
does with your friends and to make matters worse newer devices use what's

33
00:02:18,879 --> 00:02:25,280
called smart bluetooth where they don't even have to support every feature in a

34
00:02:22,640 --> 00:02:28,560
certain profile while this is again supposed to extend battery life by

35
00:02:27,040 --> 00:02:32,640
allowing a gadget to turn off features it's not using it makes it even more

36
00:02:30,640 --> 00:02:36,560
likely that a pairing problem will arise because of all these random profile

37
00:02:34,400 --> 00:02:39,840
combos you also have the fact that some bluetooth devices are supposed to be

38
00:02:38,160 --> 00:02:44,640
able to connect to multiple other gadgets at once but are so low power

39
00:02:42,640 --> 00:02:49,360
that their little embedded processors can't handle the extra traffic resulting

40
00:02:47,040 --> 00:02:53,920
in even more dropouts but now i'd like to talk about an issue

41
00:02:51,680 --> 00:02:57,760
that absolutely drives me nuts when i'm trying to watch video

42
00:02:55,519 --> 00:03:01,360
latency whenever i'm watching a great episode of tech wiki with bluetooth

43
00:02:59,599 --> 00:03:06,000
speakers or headphones it's like watching a badly dubbed kung fu movie

44
00:03:03,519 --> 00:03:10,720
because the audio track is so out of sync and the basic reason this happens

45
00:03:08,400 --> 00:03:15,760
is because bluetooth has relatively low data rates yet again to preserve battery

46
00:03:13,440 --> 00:03:19,040
life and hopefully improve range meaning the audio data takes a little longer to

47
00:03:17,760 --> 00:03:24,800
reach your wireless speakers or headphones than it would with a wired solution your devices also have to do

48
00:03:22,720 --> 00:03:28,560
extra processing which is often inefficient because many operating

49
00:03:26,879 --> 00:03:33,040
systems Android haven't been well optimized for

50
00:03:31,440 --> 00:03:38,239
quickly dealing with bluetooth audio i mean imagine that a wireless device

51
00:03:35,920 --> 00:03:42,879
hasn't been optimized for a wireless audio standard are you kidding me and

52
00:03:40,560 --> 00:03:48,400
yet they took away our headphone jacks who's in charge here and yes i know

53
00:03:45,440 --> 00:03:52,640
there are codecs like optics adaptive that are supposed to cut down on latency

54
00:03:50,400 --> 00:03:56,640
but it's often still noticeable due to core issues with the bluetooth spec

55
00:03:54,640 --> 00:04:01,200
whatever operating system your device is using and the inherent limitations of

56
00:03:58,799 --> 00:04:05,599
wireless audio if the powers that be haven't optimized audio by now it

57
00:04:03,599 --> 00:04:10,720
probably isn't surprising that bluetooth is also notorious for not being the most

58
00:04:08,000 --> 00:04:14,239
secure wireless protocol either as the myriad ways it has been implemented has

59
00:04:12,720 --> 00:04:18,239
made it tough for the industry to come together and figure out how to lock it

60
00:04:16,079 --> 00:04:21,680
down not to mention it's had tons of vulnerabilities surfaced since it was

61
00:04:20,000 --> 00:04:27,360
first released so is there any way to make your bluetooth

62
00:04:23,840 --> 00:04:29,120
experience a little better well

63
00:04:27,360 --> 00:04:33,040
the best things you can do are to keep all of your bluetooth devices up to date

64
00:04:31,280 --> 00:04:37,840
and disable any features you won't be using in your device settings doing both

65
00:04:34,720 --> 00:04:39,520
of these things can cut down potentially

66
00:04:37,840 --> 00:04:43,520
on frustrating pairing problems otherwise

67
00:04:41,199 --> 00:04:47,280
maybe just use wired devices unless you really need bluetooth i mean having your

68
00:04:45,680 --> 00:04:52,960
headphones connected to your phone with a wire and a dongle is that it's not

69
00:04:49,440 --> 00:04:55,199
that big of a deal guys come on

70
00:04:52,960 --> 00:04:58,880
get over yourself speaking of things that could be a big deal are you

71
00:04:57,120 --> 00:05:02,240
concerned about a data breach causing your credit card info to fall into the

72
00:05:00,479 --> 00:05:07,440
wrong hands then check out today's sponsor privacy.com techwiki for a free

73
00:05:05,759 --> 00:05:11,120
easy to use service that hides your credit card number you see it works by

74
00:05:09,280 --> 00:05:14,800
creating a virtual card number that's locked to whichever merchant you're

75
00:05:12,560 --> 00:05:18,960
shopping at so even if the merchant gets hacked the bad guys won't be able to

76
00:05:16,479 --> 00:05:22,240
just use your card anywhere they please and if they try you'll get a push

77
00:05:20,639 --> 00:05:25,919
notification so that you're always in the loop and can cancel the card

78
00:05:23,759 --> 00:05:29,039
immediately cards are super easy to set up you just need to create an account

79
00:05:27,440 --> 00:05:33,919
link your virtual cards to your checking account or debit card add a limit and

80
00:05:31,840 --> 00:05:36,720
you're good to go they've also got a browser extension that autofills

81
00:05:35,440 --> 00:05:41,680
information for you when making a purchase privacy.com is pci dss

82
00:05:39,680 --> 00:05:45,600
compliant uses military-grade encryption to secure your information and offers

83
00:05:43,680 --> 00:05:49,520
two-factor authentication and since they make money from merchants there's no

84
00:05:47,199 --> 00:05:54,240
cost to you in fact if you sign up today you'll get five bucks come on check it

85
00:05:52,240 --> 00:05:59,120
out today at privacy.com forward slash techwiki that's privacy.com forward

86
00:05:56,720 --> 00:06:03,120
slash techwiki well that's it for this one guys thanks for watching like the

87
00:06:00,720 --> 00:06:06,639
video dislike the video can you do both

88
00:06:04,560 --> 00:06:10,240
i don't know check out our other videos and comment below with video suggestions

89
00:06:08,319 --> 00:06:14,160
oh and also don't forget to subscribe and follow that's a big list

90
00:06:12,000 --> 00:06:16,960
but i think you can remember it you're a smart cookie
