[App_rpt-users] DTMF timing

[mike at midnighteng.com]

I don't think you will get anywhere with that unless you edit the
source code.
There is no provision for it in ACID anyway that I have ever seen.
But I think for the nature of the problem, it is easier solved by
fixing problems with audio.

Distortions can occur when 'flat topping' so to speak.(to hot)

This often causes the double digits because the distortions make
enough valid 'break length timing' of a digit.
From where is something you need to look into
With both your rx audio as seen in dsp and the radio's 'dtmf tx audio
level'  that is normally adjustable internally. (or both)

but if you should change the source code, adjust the time of 'break
length'.
The time required of silence between the digits before the next digit.
The reason adjusting that can problematic for some is the auto-send
dtmf strings many use in their radios are pretty quick.

My advise is play with the audio first. The dtmf timing has been well
thought out.
Adjusting it will have implications you did not account for.

...mike/kb8jnm

----- Original Message -----
From: "Users of Asterisk app_rpt"
<app_rpt-users at lists.allstarlink.org>
To:<app_rpt-users at lists.allstarlink.org>
Cc:
Sent:Sat, 11 Mar 2017 14:34:17 -0800
Subject:[App_rpt-users] DTMF timing

 Hi all,

 I’m having an issue with certain portable radios where the DTMF
tones seem to be ‘bouncing’, i.e. a single tone is decoded
multiple times for one press. The simple answer is “Buy a better
radio!”, but that’s way too easy. The question is: Is there a way
to tell the DTMF decoder to require a digit to be held longer before
decoding?

 Thanks!
 Mark
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