On 5/26/15, jim bell <jdb10987@yahoo.com> wrote:
Oops! Error.Somewhere between bits and bytes, I made an error which I ... US alone for one year. The data stored in a single call could probably be compressed to 8,000 bits per second, so every second would require 80 times as much data to be stored as just the metadata alone. [Correction: The data stored in a single call could probably be compressed to 8,000 bits (1,000 bytes) per second, so every second would require 8 times as much data to be stored as just the metadata alone.} If the average phone call is 120 seconds, that would require about 9600x [Correction: 960x] the data size, ...
http://www.speex.org/ "Speex is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps." And add another 4x storage density improvement without blinking if you take 2kbps as "minimal but adequate".