On: Codec 2 700C

[Someone]

It is even better; the ‘b’ is ‘bits’, not ‘bytes’.

700 bits/sec = 700 * 60 * 60 / 8 bytes/hour = 315,000 bytes/hour, or slightly under 308 kilobytes per hour/154 kilobytes for that 30 minute podcast.

[fsiefken → Someone]

Wow, yes! And someone is actually offering codec2 audio files: https://lowbitnet.wordpress.com/audio-books/