[arm-allstar] DTMF Masking

[Doug Crompton]

But to notch all DTMF you would need 8 filters, four low tones and four
high. Not sure how that would effect the audio. Worth a try I guess.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*


On Fri, Nov 10, 2017 at 12:40 AM, "David McGough via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

>
> 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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