[arm-allstar] dtmf audio level

[David McGough]

Don,

Where are the DTMF tones in question originating?  A radio or the external 
controller? 

You need to set the audio levels using simpleusb_tune_menu (SUSBTM) (admin
option #12).  You'll see a graphical level display from SUSBTM option #2.  
The RX level should typically be between the 3KHz and 5KHz points.

If your controller is outputing "flat" RX audio, make sure to turn on 
De-emphasis, menu option G.


73, David K4FXC



On Mon, 15 Aug 2022, "Don Sayler via ARM-allstar" wrote:

> Our node isn't recognizing dtmf tones. After doing a bit of experimenting,
> I have figured out that the audio level is too high and distorting the
> tones. But the voice audio level is fine. Is there a way to adjust the
> level of the dtmf tones individually? I didn't see one, and I'm not even
> sure how that would work. But I figured I'd ask the question...
> 
> Thanks.
> Don
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