[asterisk-app-dev] Asterisk AMD Application

[Wolfgang Pichler]

I also do think that it does not make any sense - and i did already discussed this with the customer.

Customer does not want to play audio at the very beginning - there should be silence for around 1 - 2 seconds - so that a human can say hello - after this it will start with audio.
I can see there is a ast_playstream and ast_stopstream function - these functions do not block as far as i can see. So technically it could work - or i am wrong with that ?

Wolfgang Pichler

E: wpichler at callino.at (mailto:wpichler at callino.at)
P: +43 7236 263 263 22 (tel:+43%207236%20263%20263%2022)
A: Gutauerstr. 42 (https://maps.google.com/?q=Gutauerstr.%2042)
W: http://www.callino.at/

On Mrz. 26 2018, at 9:59 am, Luca Pradovera <luca.pradovera at gmail.com> wrote:
>
> Even if you found a way to play audio, would not the called party react to it?
> If I, as a human, lifted the phone and heard music, I would just hang up, or at best stay there listening, thus making AMD get a false positive.
>
> If I can give you a little advice, I would not go too overboard with AMD. It's great, works well, but it will never catch edge cases or be 100% perfect.
> You can tune it a little but overall it still is just measuring silence and word durations, nothing fancy.
> Plan your application around that and make the customer aware of the situation, would be my best advice.
>
> Best regards,
> Luca
>
>
> On Mon, Mar 26, 2018 at 9:18 AM, Wolfgang Pichler <wpichler at callino.at (mailto:wpichler at callino.at)> wrote:
> > Hi all,
> >
> > i do have a customer request - who does want the AMD Application to inject a sound file on the channel to the called person.
> > For example:
> > Asterisk does dial (automatically) a number - something there does answer the call - so asterisk does start the AMD Application to discover for Answering machine. In this time for normal - the called person does hear nothing. My Customer does think that it would be great to be able to play some short music / announcement in this process - to get better results in the Answering machine detection (i don't think so - but hey - lets try).
> >
> > So - is anyone here who has already done something like this ?
> > I've already tried to inject music with MusicOnHold - but this will inject the stream on both channels - so the AMD won't work. I assume i have to use some sort of ast_stream_file on the channel to the called person - but i think this function will block. I would need a ast_start_stream_file - and a ast_stop_stream_file function for this - is something like this available ?
> > br,
> > Wolfgang
> >
> > Wolfgang Pichler
> >
> > E: wpichler at callino.at (mailto:wpichler at callino.at)
> > P: +43 7236 263 263 22 (tel:+43%207236%20263%20263%2022)
> > A: Gutauerstr. 42 (https://maps.google.com/?q=Gutauerstr.%2042)
> > W: http://www.callino.at/
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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