Most likely the OEM doesn't even keep a copy of the signatures, as that would be a weakness in the protection.
It would be very hard to try to extract this signal from the end product or otherwise reverse engineer it.Īlso, the Cinavia protection was not designed to be removed by even the original manufacturer, so even if you had the inside info, it would still be a challenge to remove Cinavia from the audio. This requires inside information of the clean signature to accurately reproduce. The synch has to be perfect for it to work. My theory is that you have to have the exact signature of the Cinavia signal and then add it back 180 degrees out phase with the original signal to cancel it out. Masking the Cinavia audio signal is far more complicated and probably requires inside information to the Cinavia signatures. The best solutions so far are to control the player firmware. So far no one has been able to mask the Cinavia signal from the audio without unacceptable loss of quality. This is old stuff that has been hashed over and over again.
