[m3047]

Audio doesn't require all that much bandwidth. 20Kb/Sec should be plenty for reasonable fi. "CD quality" would be 40Kb. Ultrasound maybe double. So... 20Kb would be 20 packets per second and that's being generous. That's without compression.

[sgerenser]

20 packets per second continuously from your phone to a single server, when you’re otherwise sitting there doing nothing would be very noticeable (for anyone who cared to look for it). And yet I’ve never seen any evidence reported of this.