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Re: [Linphone-developers] Improving intelligibility for soft speech
From: |
GAURAV RAI |
Subject: |
Re: [Linphone-developers] Improving intelligibility for soft speech |
Date: |
Fri, 5 Jul 2019 15:43:38 +0530 |
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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