I Put a Secret Audio Watermark in a Video File - Jody Bruchon Photo/Video

WATCH UNTIL THE END FOR THE REVEAL!
How to do it: record or TTS synthesize the spoken words, pull into Audition or any other decent editor, resample (stretch w/o pitch adjustment) the audio to 64x the length (Audition: stretch by 8x/800% two times) so it's just a super low bass distortion, place in your timeline. To hear it again, un-stretch to 1/64 the length (in Audition, 1/8x or 12.5% two times).
This is what survived FFMPEG's 128kbps AAC compression in my test.
0:00 Rationale
1:16 Revealing the mark
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[@duknuts]

I almost wanna see someone get caught stealing the audio now for that 'gotcha' moment. Well played

[@SmokeApples]

we're still waiting for the Windows Recall video.

[@JodyBruchon]

It's in the works. Lots to say.

[@Grey-Troll]

Super neat!

[@Starxteel]

Nice job, but what if someone cuts of everything below, let's say something like 40Hz?

[@JodyBruchon]

They can, but then the audio won't be usable for production quality work anymore. They can't toss it without tossing all the booms and rumbles.

[@quickmythril2398]

so basically you first translate into Entish? :D

[@kinsley7777]

now that’s clever … 😎

[@Henk717]

Thats awesome and sounds very reversable, so all we gotta do is slow something down to an extreme degree to where its not audible bass tones and then put it on top of the thing we are making? Very cool.

[@JodyBruchon]

Yep, but it specifically has to be resampled. If you do any kind of pitch correction or changing then it ruins the audio. You have to stretch the samples out without changing them.

[@TheCasualHazeFox]

Clever!

[@thecrypt5823]

Noice.

[@Mark_Linford]

🎥 😎

[@davidkroft]

Holy shyt, that's a huge brain move right there

[@sumbodee3]

so you put her in super low pitch to hide her?

[@JodyBruchon]

I put the voice in stretched out 64x. That makes the pitch extremely low but I didn't lower the pitch only. The "resampling" part is critical. That's why it's audible after extreme speedup.

[@hannah171]

Does this effect the quality of the audio at all? ​@JodyBruchon

[@TanmoyDasIN]

❤❤❤❤🫡