[Linphone-users] - Linphone for music lessons

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Hello,

I'm new to Linphone and would like to use it for music lessons, where 
audio quality is very important.

So, I would like to know how best to configure it for music.

1) Is it possible to deactivate all audio codecs, in order to transmit 
the original sound (similar to Zoom which offers this option)?

2) If I use the audio codecs, in order to have the highest quality must 
I use OPUS with bitrate of 128 Kbs? And is it possibile to disable all 
the other codecs (speex, PCMU, PCMA, G729 which are enabled by default)?

3) Is it possible to make a test call to hear a short record of the 
audio quality?

I have a very good Internet connection (optic fiber FTTH, 100 Mbps in 
upload und 700/900 Mbps in dowlonad) and use Linphone under Linux 64-bit 
(Debian Buster).

I also write a wish, it would be nice if in one of the next releases of 
Linphone it will be possible to manage also a reverb filter and an 
equalizer, the world of music lessons is constantly growing up and these 
possibilities would make Linphone the perfect software. There are some 
open source audio filter available, may be could they be integrated into 
Linphone?

For example, I play the viola, and with all the string instruments 
(violin, viola, cello) the best results are usually obtained with a 
special microphone to be installed near the bridge (where are the 
strings), however the sound captured in that position requires a (small) 
reverb effect and the elimination of unwanted noise.

Thank you very much for your advices and sorry for my bad English.

Best regards,

Stephanie