> For example, a phone could emit a static (non-irritating) tone to isolate spoken communication and then filter it out of voice communication.
As if our cities were not loud enough. You might also find out that a noise that is not irritating to some parts of the populations are unbearable to others. This sounds like a very high tech solution in search of a problem, whilst the obvious answer is simple: just use text messages.
> Simple sound-proof booths could be placed in many locations to allow for call privacy as well.
So we have to isolate into some specific infrastructure to send a message? What am I supposed to do if I am late and in a packed train, for example?
> At the end of the day, texting is probably just as insecure with cameras everywhere and with the fact that the messages are transmitted and retained over mobile networks in the same way as audio and video files would be, although the audio and video files would not inherently contain direct transcripts of the communication.
What would sending audio messages change? Installing microphones in a finite set of booths sounds much more tractable than putting cameras (with a resolution high enough to make individual characters on a smartphone screen visible; none of them do that today) everywhere we can write messages. Voice recognition is accurate enough that you would not need any transcript to extract information from intercepted messages.
Frankly, you sound like you have a personal issue with text messages, which is fine, but none of what you wrote makes any sense.
As if our cities were not loud enough. You might also find out that a noise that is not irritating to some parts of the populations are unbearable to others. This sounds like a very high tech solution in search of a problem, whilst the obvious answer is simple: just use text messages.
> Simple sound-proof booths could be placed in many locations to allow for call privacy as well.
So we have to isolate into some specific infrastructure to send a message? What am I supposed to do if I am late and in a packed train, for example?
> At the end of the day, texting is probably just as insecure with cameras everywhere and with the fact that the messages are transmitted and retained over mobile networks in the same way as audio and video files would be, although the audio and video files would not inherently contain direct transcripts of the communication.
What would sending audio messages change? Installing microphones in a finite set of booths sounds much more tractable than putting cameras (with a resolution high enough to make individual characters on a smartphone screen visible; none of them do that today) everywhere we can write messages. Voice recognition is accurate enough that you would not need any transcript to extract information from intercepted messages.
Frankly, you sound like you have a personal issue with text messages, which is fine, but none of what you wrote makes any sense.