Streaming multiple channels from one computer

Usually each audio channel is bing sent by one device (computer or smartphone). But in some cases you might want to use only one device to stream multiple audio channels - for example when using several interpretation hard consoles and you want to ingest all of their audio signals to just one computer. 

Here is how it works:

1. Open browser and allow mic input
2. Choose audio input source
3. Start the stream
4. Open a new tab (or window) and continue to do so with each channel