[arm-allstar] DTMF Masking

David McGough kb4fxc at inttek.net
Fri Nov 10 00:40:27 EST 2017


Hi William,

Ah, so the DTMF is coming in-bound to your node from another node, via a
link??  ...As you've found, remote-originating DTMF tones don't get
locally processed (at your end), so, at least they won't accidentally
activate an AllStar feature.

It's possible that the app_rpt notch-filter capability could reduce the
amplitude of these tones, making them less noticeable. I haven't actually
tried the notch capability for this type application....Has anyone else
tried this? ...If not, I'll give it a whirl and report back.


73, David KB4FXC







On Thu, 9 Nov 2017, William Freeman wrote:

> Dtmf audio from a node that I regularly connect to in Vegas is being 
transmitted over the link. It's not having any effect on my nodes 
others than it is annoying. 
> 
> Sent from my iPhone
> 
> William Freeman
> 
> > On Nov 9, 2017, at 8:53 PM, David McGough <kb4fxc at inttek.net> wrote:
> > 
> > 
> > Hi William,
> > 
> > Locally originating DTMF tones are usually dynamically muted by the
> > AllStar software. So I'm confused as to the problem you're having?
> > 
> > Note that there is a switch in the simpleusb.conf file which will turn off 
> > all DTMF processing (dtmf_dsp=0) on a per-node basis, and if disabled, 
> > DTMF would not be muted.
> > 
> > What exactly is happening?
> > 
> > 73, David KB4FXC
> > 
> > 
> >> On Thu, 9 Nov 2017, "William Freeman via arm-allstar" wrote:
> >> 
> >> In AllStar, is there anyway to "mask" or "mute" the DTMF tones that are in
> >> the repeated audio so others don't have to hear them? Thanks Bill N4NJJ
> >> 
> >> 
> > 
> 



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