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Thanks for the answer Andre. We actually have the same name, and I too lived in London haha. Could you explain what do you mean by Modem? Modulation/demodulati

by quotz 6y ago

Thanks for the answer Andre. We actually have the same name, and I too lived in London haha. Could you explain what do you mean by Modem? Modulation/demodulation? I know analog encryption doesn't exist, except scrambling. I am trying to achieve this for VoIP. There are so many apps that encrypt their calls, there must be some easy way of doing this.

Nextgrid 6y ago
VoIP encrypts calls at the digital level after the audio has been converted to packets (which are then transmitted over a digital network). The initial description of you are trying to achieve would require somehow encrypting the audio at an analog level so it can be transmitted through a simple audio jack.
- quotz 6y ago
  Right, lets say we use USB3.0/ Lightning port or bluetooth, which are all digital. Audio input goes into my mac program from a bluetooth/USB mic, then gets processed there, and then sends the digital data stream as an audio output to the iphone via USB/bluetooth. The iphone reads that as a digital audio stream input and its apps can use it accordingly. The audio stream would of course be incoherent, but say someone on the other end of the apps can decrypt it.