The GRB1 noise generator is often used to prevent someone from recording or listening to confidential conversations. Thanks to its sound-masking quality, it will be impossible to record a conversation, not even a little bit of it.
The above-mentioned conversation will serve no purpose. The registration will be filled with a constant and annoying crackle, which had previously struck your conversation. Not even with the latest and most sophisticated audio cleaning software will you be able to recover or resume the conversation.
Moreover, if anyone ever tries to resume the conversation, they are only going to worsen the situation, in a way that they will unconsciously remove the “residual” vocal frequencies.