[TowerTalk] 1dB more RF Power?

[Jim Brown]

On 4/30/2020 7:41 PM, jimlux wrote:
> This kind of analysis, of course, is why modern cellphone audio quality 
> is so bad. Back in the 80s, if someone had said that random consumers 
> would be happy with 8kbps encoding of speech they would have called them 
> crazy.

It's NOT the data bandwidth that's limiting intelligibility, it's the 
data compression, and the breakdown in recovery with the path causes 
some of those bits to be lost. It's made worse when there is noise in 
the background, which uses up bits that could be used for the speech 
signal. Learned this many years ago at a meeting of the Chicago chapter 
of the Audio Engineering Society from a presentation by an engineer 
working on exactly that. He played examples.

73, Jim K9YC