Tone generation by frequency modulation(f1*f2) and conjugation(f1+f2) !! ???

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Hey thanks for your answer...:)?and by wrong freq i mean inappropriate freq..(may be i am wrong,ignore the point if such :) )
Now i want to know that,yes "tonegen" plays dual tone that i know,but does it mixes frequencies based on modulation(*) or conjugation(+) ??? and surely it does only 1 of them,then how to make other alternative possible??and what is use of 'freq2' in 'tonegen'?? becoz in documentation it is stated that freq2 is optional !!

Thanks in advance,Vikas Khanna.

--- On Wed, 16/11/11, Nanang Izzuddin <nanang at pjsip.org> wrote:

From: Nanang Izzuddin <nanang@xxxxxxxxx>
Subject: Re: Tone generation by frequency modulation(f1*f2) and conjugation(f1+f2) !! ???
To: "pjsip list" <pjsip at lists.pjsip.org>
Date: Wednesday, 16 November, 2011, 3:54 AM

Hi Vikas,

Not really sure how freq can be wrong :)

FYI, the tonegen can generate dual tone (dial/ring/ringback/etc) by
mixing samples of both freqs (freq modulation?).

BR,
nanang


On Tue, Nov 15, 2011 at 4:22 PM, Vikas Khanna <vikas_60060 at yahoo.co.in> wrote:
>
> Hi,
> Can anyone help regarding generating tone based on frequency modulation and frequency conjugation??????
>
> pjmedia_tone_desc tones[1];
>
>? ? ? ? ? tones[0].freq1 = 200;
>? ? ? ? ? tones[0].freq2 = 0;
>? ? ? ? ? tones[0].on_msec = ON_DURATION;
>? ? ? ? ? tones[0].off_msec = OFF_DURATION;
>
> status = pjmedia_tonegen_play(port, 1, tones, 0);
>
> Here 'freq2' is frequency which is used only if 'freq1' is wrong..
> ON_DURATION & OFF-DURATION refers to time in ms?unto?which tone should be on and off respectively...
> Now i want that when i provide 2 frequencies it should do modulation(*) and/or conjugation(+) and generate ring accordingly!!
> Can anybody help with it???????
> It is same as generation of various tone like dial tone,busy tone,error tone....etc
> Thanks,
> Vikas Khanna.
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