Voice Encryption - Matlab

[Cuchara]

voice encryption using matlab

Hi all,

I'm doing a project of voice encryption. The project consist:

1. Record a voice from the PC mic and Encrypt the voice record (rec1) as noise.
2. After encrypt, I need to combine the "noise" with another voice record (rec2), such that it seems to be like a normal voice record (rec2) with some channel noise.
3. Send both sounds (the integrate one) to another user (pc), and the 2nd user need to use a "decoder" to separate the "noise" and to recreate the original voice record (rec1) from the noise.

I dont think it's need to be white noise (I'm right??). I try to add white noise with 'awgn' function - but it still possible to recognize the voice record (rec2).

Could someone can help me with the encryption as noise and how to combine both signals?

Thanx in advance,
Cuchara

 

[ramanujanmv]

Hi Cuchara did you complete your project??
WE are trying to implement a new algorithm instead of of current A5 please can anyone help with this please..

 

[ramanujanmv]

HI cuchara can you help us how can we provide a voice input to the attached block diagram of GSM. PLease help us bro..