> On the contrary, Joe. I can prove humans can tell the
> difference between certain letters, words, and sounds with
> 4k of audio that you can't with 2.5k.
That's certainly true with very high S/N ratios on clear
frequencies, assuming the people have normal hearing and
speech.
I can prove the best S/N ratio and readability when signal
levels have less than 20dB S/N ratio occurs when SSB signals
are between 2 and 3 kHz wide, and that the most effective
weak signal communications occurs with about 2kHz bandwidth.
73 Tom
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|