Send and receive audiodata to bluetooth headset

Hi there, i am not quite sure if i am right here - so please tell me if this is not the right place to ask.

i am thinking about the possibility to make some kind of a bluetooth device wich acts as a bridge between a bluetooth headset (including microphone) and for example a PMR Radio with mic in / audio out.

i have spend some time trying to research libraries ( ArduinoBLE for exampe to find the right way to do it, but cannot really get there. till now i am just trying to make my research to figure out if i actually would be possible (with reasonable efford...) or just not.

can anyone point me to the right direction where to look for examples or what to use ?

Any idea would be very welcome!
Thanks and Cheers!

Most Arduinos are too slow and have too little memory to be useful for audio signal processing or audio data transmission. You might consider the Teensy 3.2 or 4.x at PCJR, who offer a decent audio library.