[Freeswitch-users] Tone detection How To

Tue Jun 9 23:47:37 MSD 2015

Hi Michael,

I have attached the tone file in one of  my previous reply.

On Wed, Jun 10, 2015 at 12:36 AM, Michael Jerris <mike at jerris.com> wrote:

> What exactly kind of tone are you trying to detect?
>
>
> On Tuesday, June 9, 2015, Naveen Tamanam <naveen32india at gmail.com> wrote:
>
>> Hi nandy,
>>
>> can we get  tone detection done, with out defining frequencies in
>> conf/autoload_configs/spandsp.
>> conf.xml. In my case I used event socket command(from external script),
>>
>> tone_detect  8582g3b8-f7db-10e4-2ac4-c01885c1ffd3  tone_name
>> 437,478,679,918,1357,1399,1593,1838
>>
>> above frequencies are the peak frequencies that I took from logarithmic
>> spectrum(in audacity).
>>
>> On Sun, Jun 7, 2015 at 3:40 AM, Nandy Dagondon <nandy1925 at gmail.com>
>> wrote:
>>
>>> Ah ... you'd like to have a call progress detection.
>>>
>>> I used spandsp.  First, you have to analyze the tones to get the freqs.
>>> Define and configure the frequencies in
>>> conf/autoload_configs/spandsp.conf.xml. In my case, I define <descriptor
>>> name="63">
>>>
>>> In your dialplan (ex. outbound), include the ff lines before the bridge
>>> app:
>>>
>>> <action application="set"
>>> data="bridge_pre_execute_bleg_app=tone_detect"/>
>>> <action application="set" data="bridge_pre_execute_bleg_data=63"/>  <!--
>>> the descriptor name -->
>>>
>>> For an inbound call, do the same but change bleg to aleg.
>>>
>>> I hope it works with your setup. Cheers!
>>>
>>> /Nandy
>>>
>>> On Sat, Jun 6, 2015 at 3:51 AM, Naveen Tamanam <naveen32india at gmail.com>
>>> wrote:
>>>
>>>> 
>>>> Hi Nandy,
>>>>
>>>> I am glad to see your reply. I am trying to detect the tone which
>>>> sounds like a simple ring.
>>>> and I can't guess when that could occur, so I listen for the tone
>>>> through out the call. I am attaching the tone.
>>>>
>>>>
>>>>
>>>>
>>>> On Thu, Jun 4, 2015 at 10:39 AM, Nandy Dagondon <nandy1925 at gmail.com>
>>>> wrote:
>>>>
>>>>>
>>>>> Hi,
>>>>>
>>>>> What are you trying to do with tone_detect? Is it call progress? Fax
>>>>> detect?
>>>>>
>>>>> /Nandy
>>>>>
>>>>> On Tue, May 19, 2015 at 4:55 AM, Naveen Tamanam <
>>>>> naveen32india at gmail.com> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I am using following command for tone detection,
>>>>>>
>>>>>> tone_detect <uuid> <key> <tone_spec> [<flags> <timeout> <app> <args>]
>>>>>> <hits>
>>>>>>
>>>>>> Many times I end with the false detection. In my case  I haven't
>>>>>> given all optional args.
>>>>>> I just gave   tone_detect uuid  key tone_specs. It would be something
>>>>>> like,
>>>>>>
>>>>>> tone_detect  8582g3b8-f7db-10e4-2ac4-c01885c1ffd3  tone_name
>>>>>> frp1,frp2,frp3
>>>>>>
>>>>>> Where frp1, frp2 and frp3 are the frequencies of  few peak amplitudes
>>>>>> of the tone.
>>>>>> Those frequencies are detected through audacity by plotting
>>>>>> spectrum,
>>>>>> Spectrum specs are,
>>>>>>     Alogorithm: Spectrum,
>>>>>>     Fuction: Hanning window  or Bartlett window
>>>>>>     Size: 512
>>>>>>     Axis: Log Frequencies
>>>>>>
>>>>>> Is there anything I am missing. Any suggestions are highly
>>>>>> appreciated, Thanks.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Thanks & Regards,
>>>>>> Naveen Tamanam
>>>>>>
>>>>>>
>>>>>> _________________________________________________________________________
>>>>>> Professional FreeSWITCH Consulting Services:
>>>>>> consulting at freeswitch.org
>>>>>> http://www.freeswitchsolutions.com
>>>>>>
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>>>>>>
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>>>>>>
>>>>>
>>>>>
>>>>>
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>>>>>
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>>>>
>>>>
>>>>
>>>> --
>>>> Thanks & Regards,
>>>> Naveen Tamanam
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
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>>>
>>>
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>>>
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>>
>>
>>
>> --
>> Thanks & Regards,
>> Naveen Tamanam
>>
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
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>
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-- 
Thanks & Regards,
Naveen Tamanam
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