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I need to do live voice conferencing between a PI 4 and a laptop wirelessly. So far I've gotten a usb mic and aux speaker connected to it and can store the voice locally on the Pi.

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    You can use WebRTC. Maybe this webRTC example can help you and this
    – Ephemeral
    Commented Jan 1, 2020 at 13:44
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    Add more information. What is your objective? Which OS? Do you want a continuous connection between RPi and your laptop? Commented Jan 1, 2020 at 17:19

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In this case, you have a lot of solutions. WebRTC is the one that I recommend to you.

Configure the RPi as a WebRTC end-point

Install Apache and git:

sudo apt-get update  
sudo apt-get install apache2 git -y  
sudo service apache2 start  

Download the WebRTC source:

git clone https://github.com/apizee/ApiRTC-examples  

Move sources to the apache directory:

mv ApiRTC-examples /var/www/html/  

Done.

Now you should see this page on this URL:

localhost/ApiRTC-examples/peertopeer_call/index.html

ApiRTC
Note that it's for Raspbian with GUI. If you want to do it on Raspbian Lite, you have to connect to it over a WebSocket connection.

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