Voice scrambler

[Maïwenn]

Hello !

I want to create a voice scrambler. Something basic. I thought about different possibilities:

- Reverse the signal

- Change the frequency

- Add a signal (perhaps even the same signal but with another frequency)

Do you have any advice ? Could you perhaps give me tipps ?

If you have already done something like that, I'm really interested to know.

Have a nice day,

Maïwenn

[RTSLVU]

Well it simplest form of scrambling you take a bit stream and XOR a repeating "key". The longer the key the stronger the encryption.

Descramble is the reverse, XOR the key with the encrypted data stream and the output will be the original data.

[RTSLVU]

Here's something I did a while back to encrypt/decrypt as file using the method above as an example.

You might be able adapt it to scramble digitized voice too.

 

[Maïwenn]

Thank you very much !