[arm-allstar] Programmatically attenuate TX volume based on logic

[John Huggins]

On Fri, Dec 21, 2018 at 9:25 AM "Doug Crompton via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> John,
>
>   I am not sure what you are asking when you say transmit volume.


The larger picture is our HAMVOIP R-Pi is connected to Port 2 of our SCOM
7330. The 2m RF deck is connected to Port 1. Initially we mixed the audio
from Ports 1 and 2 equally, but some "issues" we had with an Echolinker
caused us to change the mix such that the RF RX side wins the right to
dominate the RF TX output. This works, but times change and the desire to
always monitor both sources on the RF TX brought forth the desire to change
the mix to equal once again.

So in this case, all I really want is to ensure HAMVOIP announcements don't
equally mix with an RF user by minimizing HAMVOIP's audio level, but not
all the way to zero. This would give our RF users the awareness of the
Internet side they desire (such as during Net checkins from the Internet),
without announcements also being as loud as internet users.

It appears your hint below might be just the thing. We will give it a go.

John


> If you
> mean telemetry volume then there are two commands to set level changes -
>
> ; Audio Level settings in dB
>
> telemnomdb=0     ; Overall reduction in telemetry level
> telemduckdb=-9   ; Telemetry level reduction with signal
>
> telemduckdb  is the reduction with COS.
>
>
> *73 Doug*
>
> *WA3DSP*
>
>