@aice.socials: Shazam doesn’t actually “listen” to songs. It converts sound into a mathematical fingerprint using FFT — turning audio into a map of frequency peaks. Then it matches patterns, not sound. It’s not audio recognition. It’s geometry. That’s why it can identify a song in seconds from just 5 seconds of audio. Want more breakdowns like this? Join the AICE newsletter — link in bio / first comment. 🚀 #AI #Tech #Shazam #SignalProcessing #AICE

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annnalee
anna 🪸 :
fourier transform is literally EVERYWHERE it’s insane
2026-04-28 03:17:53
134
backstreet.orjay
Abbéy Orjay :
Omg calculus is haunting me
2026-03-21 07:49:48
2102
poopysnail57
ohhhh ouuuhhhh :
alternative theory: there’s a little guy inside my phone who knows every song
2026-03-16 13:48:29
16297
grannyscrustycoochie
Grannys Crusty Coochie :
“Shazam never listens to your music” and then just explains how it listens to it
2026-03-17 03:24:17
5270
xanderz101
eli :
finally a use for calculus 3 😭😭😭
2026-03-22 17:56:14
102
nickogallo_
nickogalIo :
Interpreting sound waves...so, listening?
2026-03-16 23:42:36
846
bsarrab
D :
Regardless to be able to match that through millions of songs in a few seconds is pretty impressive
2026-03-16 17:17:48
767
joeshmoe525
JoeShmoe525 :
Of course the Fourier Transform is used
2026-03-21 14:56:35
431
asparagus945
@asparagus9️⃣4️⃣5️⃣ :
FAST FOURIER: TRANSFORM
2026-03-28 07:02:43
196
datkidkari_
Ethan mf Kari :
so it observes the pressure wave from the music (Listening) and uses the data it gets from (listening) to compare it to a dataset
2026-03-16 20:03:16
89
plantbasedtechboy
Vegan Tech Guy :
saying it doesn't listen to your music is misleading, Shazam uses your phones mic to interpret the sound and then converts it into information, that's what 'listening' is, it's what we do with our ears and brain 😅
2026-03-28 01:46:56
10
morphe388
Morphē :
People don’t actually listen to music, their ear drums vibrate and neurons fire electrical pulses
2026-03-16 21:40:04
92
gwlamcq
(9) :
sounds like “listening” to me
2026-03-16 22:49:58
49
alfred_alfr3d
gojiralover69 :
god I love the fft its so versatile
2026-03-17 03:06:26
11
charschroniccrisis
charlotte (not LM) :
So when I sing the song INTO shazam it doesn’t work because I can’t reproduce the accurate songwaves, but when I hum into Google song search it works? So what the heck does Google song search use ??
2026-05-10 11:10:36
7
hyperion103
Hyperion1 :
As an Engineer, seeing how math and everyday tech is being applied satisfies my curiosity on how everything I learned in school is being applied
2026-05-10 18:27:32
23
grannyscrustycoochie
Grannys Crusty Coochie :
“Shazam never listens to your music, it listens to your music”
2026-03-17 03:23:51
20
bluecarrotsinc
Blue Carrot :
I LOVE THE FAST FOURIER TRANSFORM
2026-03-16 23:07:46
130
bdennis_
bdenn5 :
My kind of content
2026-03-22 21:44:40
6
user7670752783525
dwayne_the_pac_johnson :
Talks about the DFT and uses the equation for the CTFT
2026-03-16 18:14:06
26
ryanmcgregor86
Ryan McGregor :
This is not correct. It takes the unique 'fingerprint' created by listening to the song, and uses that as the key entered into the pre-made hash table, where the name of the song is the output to that 'fingerprint' being input. 'Search' is at O(1) bc it's basically instantaneous. Doesn't matter how big the database is, the method is the same.
2026-03-18 21:06:43
34
mr.adrian001
mr.adrian001 :
The Fast Fourier Transform (FFT) is the algorithm for computing the Discrete Fourier Transform (DFT), while that equation/relation is the Continuous Fourier Transform.
2026-03-28 03:51:19
10
c0rali333
c0ra 🧃 :
Shazam doing too much just listen to it bro
2026-03-22 01:03:38
17
carltimmons545
Carl Timmons545 :
I wonder if this is what youtube uses to determine if something is copyright
2026-03-22 14:08:32
5
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