Re: [Linphone-developers] Improving intelligibility for soft speech

[GAURAV RAI]

Dear Linphone Developers

Can someone help me with configuration a stun and turn server in lib libraries. 
As we done everything but facing one side audio in two different network.

Thanks

> On 05-Jul-2019, at 3:32 PM, Stefan Oud <address@hidden> wrote:
> 
> Dear Linphone developers,
> 
> I have a question about improving signal processing at low microphone levels.
> I am working on a Linphone version that is intended to work with low 
> microphone input (for example whispering).
> For this to work, I have to amplify low input levels.
> When looking inside MediaStreamer2, I have found a filter called msvolume, 
> that has automatic gain control included.
> There are also settings in linephonerc_factory under [sound] where certain 
> audio settings can be changed (ng_thres, ng_floorgain, dc_removal, el_speed, 
> el_thres, el_force, el_sustain, el_transmit_thres and mic_gain).
> I have found that there is a noise gate, which is not in the volume 
> controllers in the input stack (microphone equalizer, volume controller and 
> echo cancellation).
> Does someone know where I can find it?
> How can I change the default settings to amplify soft sound without causing 
> audio feedback loops or clipping in regular speech?
> I hope someone has an answer.
> 
> Best regards
> 
> Stefan Oud
> 
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