@tech.explain: Why doesn't Siri activate during Apple keynotes? Siri doesn't listen to words, it listens for frequencies. In order to stop millions of Apple devices from activating during a keynote, Apple cut those frequencies from the live audio. We put that audio into a spectrogram in order to visualize the alteration.

techexplain
techexplain
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Region: US
Tuesday 23 June 2026 18:59:48 GMT
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geekdeelino
Geek Deelino :
This is impressive
2026-06-23 19:07:29
4271
user173672563
funixxxxxxx92 :
only apple can be this super detailed for their user experience
2026-06-24 12:12:37
1015
nyanblade
NyanBlade :
Not entirely accurate - the hey siri/siri wake word is trained to only activate for your voice. That’s why they ask you to say it several times when activating it.
2026-06-23 22:05:44
51
antonio_sadorra
antonio sadorra :
Also that’s me in the apple key note
2026-06-23 19:47:33
1473
william.hanna1
William Hanna :
That makes so much sense. And it also explains why every time they say “Siri” it sounds funny and kinda glitchy
2026-06-24 02:41:21
414
thattechguygr
That Tech Guy :
Maybe one of the most educational 1.3 minutes of my life 👀
2026-06-23 19:45:44
373
blakeyy.b
Blake :
It’s funny you used that specific example of someone saying “hey siri” because that exact time during the most recent keynote it activated siri on my iphone while watching on my TV
2026-06-24 01:29:15
6
junkohub0
Wragebaiter :
So our phones are always listening to us ?
2026-06-25 03:56:44
12
roman.a.oulko
Roman :
By Turning off siri does it turn off Always on processor which always listing?
2026-06-23 21:15:07
6
wjikc
ты не попадёшь в рай :
My Siri responded every time…
2026-06-24 08:49:25
20
en.crypto
en.crypto :
I thought Siri only listens to your own voice 🙈
2026-06-24 00:39:51
8
sebastian.brc
sebastian.brc :
All of this is right, except that I think the chip samples audio at least 44.1 thousand times a second and not 16 thousand right? 16 bit is the “resolution” of the sample, not the samplerate. With a samplerate of 16khz you could only capture frequencies up to 8khz according to the Nyquist-Shannon theorem.
2026-06-23 21:58:14
30
thespiritofthenight
thespiritofthenight :
that's why you don't buy apple
2026-06-27 22:17:31
0
thesecondpast
TheSecondPast :
I watched it live and my siri was going nuts :))
2026-06-23 21:57:25
7
lucaslemoos
Lucas Lemos 🔱 :
I thought it was because SIRI is capable of recognizing voices! 🤔
2026-06-24 04:54:03
5
lukeprivvs
LK :
mine didn't activate asw! I'm on android
2026-06-27 13:27:41
11
hadal1984
hαdal84 :
how do you even find out about this
2026-06-23 20:27:27
9
jamiesefton
Jamie Sefton :
Wish tv shows done this with Alexa, mine at home always get triggered, but if there’s is an advert for Alexa you’ll notice that doesn’t trigger with this being done on that
2026-06-24 07:48:33
43
itks11
~ :
So why siri didnt activate in my phone when u just said it in the video?
2026-06-23 19:51:03
8
mrmnkl
murial08 :
basically he prove it was an expensive surveillance system 😂
2026-07-03 14:01:37
1
asandaontiktok
Asanda On TikTok :
This is why I love Apple (as boring as it is sometimes), they pay attention to the little things.
2026-07-05 19:41:07
4
viperboxspain
Bruno :
All this to activate a shitty chat bot…
2026-06-25 19:29:10
3
sadnap3
benjius :
Doesn’t it only recognize your voice?
2026-06-25 13:28:43
2
copeman__
Copeman :
notice how they say hey siri multiple times and siri doesnt active
2026-08-20 17:48:50
4
dhs_782
.. :
But why should the Keynote activate it anyways? It’s trained on the user voice and working fine on mix phone that only I can activate it
2026-06-25 13:42:47
2
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