[App_rpt-users] usbradio pre- & de-emphasis

Kevin Custer kuggie at kuggie.com
Tue Jul 11 15:05:53 EDT 2017


Sounds like you're de-emphasizing the RX audio and not pre-emphasizing 
the TA audio, but should be.

The exact set-up is determined by the radio and what it wants/needs.  
What radio are you using and how do you have it connected?  What radio 
adapter are you using?

Kevin




On 7/11/2017 1:42 PM, Bob Pyke wrote:
> When I first setup a RPi with DIAL on our repeater, it sounded tinny, and I made a change in configuration in usbradio that de-emphasized the audio. It was too much, loosing too many of the higher frequency components that make for clarity of audio. I'm looking for information on what settings (e.g. dsp, and the rx and tx settings, =flat, =speaker, etc) that have a pre- or de-emphasis effects in app_rpt. A general discussion would be useful as well. I can address this in hardware, but wanted to explore the software approach first.
>
> Thanks,
> Bob



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