I have a Bluetooth headset and I'd like to pipe the microphone of the headset to the speaker(the port) of my laptop. And I would like to take the microphone input on my laptop and pipe it to my Bluetooth headphones.
For Pulseaudio, use
module-loopback. First get the names of the sources and sinks:
pacmd list-sources | grep name: pacmd list-sinks | grep name:
The create a loopback connection with
pacmd load-module module-loopback source="..." sink="..."
with the names of the source and sink you want, without the angular brackets.