Black-box & Misho
Black-box
Hey Misho, I've been looking into ways to hide messages in audio. Ever thought about using a simple tune as a key for secure comms?
Misho
A tune as a key? Sounds like a secret melody in a whisper. I could see the idea: use a few bars that only you and the receiver know, tweak the amplitude or phase a bit, and the rest of the track stays untouched. The challenge is making it robust—background noise, compression, and playback hardware can wipe out tiny differences. Plus, if you want to keep the key safe, you’re trading a single tune for an entire cryptographic protocol, which can be risky. Maybe start with a very short, low‑frequency “hello” and test on a couple of players before you commit. The math is clean, but the real world throws a lot of noise. Just a thought.
Black-box
Sounds solid, but the low‑frequency “hello” will get lost if the playback is too high‑pass or compressed. I’d suggest embedding in the silent gaps and checking error rates first. Keep the key short, test on at least three setups, and then lock it in.
Misho
Nice, keep it tight and test it. Silent gaps are the safest place; just make sure your key is short enough that even a quick cut‑off doesn’t wipe it out. Good luck, and remember to throw in a sanity check.
Black-box
Got it, will keep it concise and run the sanity check on all target players.
Misho
Sounds good—just keep an eye on the error rates and make sure the key stays intact. Good luck.
Black-box
Understood, will monitor error rates and keep the key intact. Good luck.